Masonry Design Fall 2014

Fall 2014 • Vol. 5, No. 3

M a t e r i a l s • Te c h n o l o g y • Tr e n d s

Award-Winning

Hardscape Designs Three unique projects

Brick Paver Installation Methods Porous Pavements Q&A Bombay Sapphire’s New Facility

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Volume 5, Number 3

Fall 2014 | Contents

features 12 Materials

Porous Pavements Q&A: Answers from the Man who Wrote the Book on the Subject As the use of porous pavements grows, designers and agencies all over North America are learning for the first time this new approach to stormwater management.

By Bruce K. Ferguson, FASLA

20

Materials

Brick Paver Installation Methods The versatility of the modules, patterns, colors, textures, and joint and paver finishes can create endless design options to fit any condition, use, and customer taste.

By Arthur Mintie

30

Design Trends

Award-Winning Hardscape Designs A look at three of ICPI’s 2013 HNA Hardscape Project Award Winners

By Cory Sekine-Pettite

2

M a s o n r y D e s i g n | Fall 2014

Materials • Technology • Trends

www.masonrydesignmagazine.com LIONHEART PUBLISHING, INC. 506 Roswell Street, Suite 220, Marietta, GA 30060 Tel: 770.431.0867 Fax: 770.432.6969 E-mail: lpi@lionhrtpub.com www.masonrydesignmagazine.com Publisher

Editor

Managing Editor

Art Director

Assistant Art Director

34 On the cover: The Manatee Bridge in Stuart, Fla., won a 2013 HNA Hardscape Project Award.

Project Spotlight

Bombay Sapphire’s New Facility Heatherwick Studio converts an old paper mill into a beautiful, botanical distillery.

By Cory Sekine-Pettite

columns & departments 4 Letter from the Editor 6 Industry News 46 Supplies 47 Index to Advertiser’s

Cory Sekine-Pettite cory@lionhrtpub.com Jennifer Morrell jmorrell@lionhrtpub.com Alan Brubaker albrubaker@lionhrtpub.com Jim McDonald jim@lionhrtpub.com

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Advertising Sales

features 40

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Reprints

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Subscriptions

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The editorial mission of Masonry Design is to educate and inform architects, engineers and specifiers about the vital role that masonry plays in the construction markets in the United States and Canada, as well as to promote masonry and masonry systems in building design (commercial, residential, institutional and educational), interior design and hardscaping applications. With each issue, readers will become better informed of the design trends, latest materials and newest technologies that will aid them in creating better masonry projects.

Masonry Design (ISSN 1941-0975) is published quarterly by Lionheart Publishing, Inc. Subscription Rates – For a free subscription to Masonry Design and Masonry Design eNews, sign up at www.masonrydesignmagazine.com. Click on Subscribe.

Copyright © 2014 by Lionheart Publishing, Inc. All rights reserved. The copyright owner, however, does consent to a single copy of an article being made for personal use. Otherwise, except under circumstances within “fair use” as defined by copyright law, no part of this publication may be reproduced, displayed or transmitted in any form or by any means, electronic or mechanical, including photocopying or by any information storage and retrieval system, without the prior written permission of the copyright owner, Lionheart Publishing, Inc. Send e-mail permission requests to cory@lionhrtpub.com.

Disclaimer – The statements and opinions in the articles of this publication are solely those of the individual authors and contributors and do not necessarily reflect the opinions of Lionheart Publishing, Inc. or the editorial staff of Masonry Design or any sponsoring organization. The appearance of advertisements in this magazine is not a warranty, endorsement, or approval of the products or services advertised.

www.masonrydesignmagazine.com

Fall 2014 | M a s o n r y D e s i g n

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from the editor

| by Cory Sekine-Pettite

Photo courtesy of hirosatophotography.com

Construct 2014

Cory Sekine-Pettite, editor To make comments or suggestions, send e-mail to cory@lionhrtpub.com.

This year’s CSI CONSTRUCT show in Baltimore brought together industry professionals who design, build, specify, engineer, manage and renovate in the built environment. At every annual CSI convention, these individuals gather to find the latest products, solutions and services for our infrastructure. A key ingredient to the success of this show are the education sessions, which are the big draw for attendees.

If you followed the event on Twitter, you could see that some of the sessions were getting 100 or more mentions on Twitter. That is quite impressive! People really enjoyed the sessions and were learning a great deal.

In addition to education sessions and exhibition space, organizers of this year’s CONSTRUCT incorporated a little Baltimore history into the proceedings. During the show, the city began its celebration of the 200th anniversary of Francis Scott Key’s composition of what would become our national anthem (adopted officially in 1931).

According to the official website for the commemoration: Maryland played a pivotal role during the War of 1812, particularly during 1814 when the British captured and burned Washington, D.C. and then made their way toward Baltimore. The British planned to attack Baltimore by land at North Point and by sea at Fort McHenry, which stood in defense of the Baltimore Harbor. It was during the bombardment of Fort McHenry that Francis Scott Key, a Marylandborn attorney brought by truce ship to negotiate the release of an American prisoner, was inspired to write the words to what became the United States’ National Anthem. Star-Spangled is a three-year commemoration of Maryland’s unique contributions to the defense and heritage of the nation, including the birth of the Star-Spangled Banner.

A colonial-style marching band opened the show.

Photo courtesy of Cory Sekine-Pettite

To contribute to this celebration, CONSTRUCT organizers announced the opening plenary session and the opening of the exhibit hall with a colonial marching band playing “Yankee Doodle Dandy.” It was a great way to open a lively program, and a great reminder of the history of where we stood.

Kudos to all involved! I can’t wait to see what they come up with for next year’s show in St. Louis. ◗MD

highlights coming in

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M a s o n r y D e s i g n | Fall 2014

Materials • Technology • Trends

Industry News

American Society of Landscape Architects 2014 Annual Meeting & EXPO WHEN: Friday to Monday, Nov. 21-24, 2014 WHERE: Colorado Convention Center, 700 14th St, Denver, CO 80202

The 2014 Annual Meeting and EXPO of the American Society of Landscape Architects (ASLA) is expected to draw more than 5,000 attendees, and will feature almost 500 exhibitors. The theme is “Resilience.”

Keynotes by environmental justice activist Robert D. Bullard, and a panel on landscape architecture on TV featuring veteran hosts, producers and programmers of hit home improvement shows: landscape architect and Grounds for Improvement co-host Dean Hill, ASLA; architect and the host of the HGTV hit show Curb Appeal John Gidding; nine-time Emmy winning producer Mila Holt of JOHLT Productions; network executive Steven Lerner, senior VP of programming, for HGTV, DIY Network, and Great American Country; and Academy Award-winning producer Michael Williams of Green Harbor Productions.

The Inside the LA Studio series will highlight the philosophy and work of the following landscape architecture firms: Balmori Associates, !melk, Biohabitats and Confluence.

More than 130 education sessions are offered on such topics as agriculture and local food production, green roofs and living walls, healthcare and therapeutic design, parks and recreation design, plants and soils, sustainable design, transportation and complete streets, urban design, stormwater management, and wetlands. All sessions are approved for continuing education credit with the Landscape Architecture Continuing Education System, and many are also approved by AIA, AICP and USGBC/GBCI. Members of the ASLA Colorado Chapter will team up with the local affiliate of the ACE Mentor Program to design a project using products donated

by ASLA’s generous EXPO exhibitors to be installed after the meeting. They will design a pocket park nestled along Speer Boulevard into the heart of downtown Denver to serve as open space for the actors, staff and students who attend the Denver Center for the Performing Arts summer programs.

The Legacy Project volunteers, students and product donors will be recognized during the Opening General Session on Saturday, Nov. 22, at 8 a.m., at the Colorado Convention Center. ◗MD

Stevens & Wilkinson Developing Student Housing for Georgia Tech and Clemson Universities Georgia Institute of Technology Renovates Residence Halls, Clemson University Plans New and Replacement Space within Core Campus Precinct Stevens & Wilkinson, a full-service architecture, engineering and interior design firm based in Atlanta and Columbia, S.C., announced ongoing progress of two, new higher education housing development projects. The projects consist of the renovation of the his-

“The 616 residents will enjoy new expanded social and study lounges, restrooms and laundries on every floor.”

— Ron Stang, AIA, LEED AP 6

M a s o n r y D e s i g n | Fall 2014

toric Glenn and Towers Residence Halls at Georgia Institute of Technology in Atlanta (Georgia Tech) and a comprehensive redesign of Clemson University’s Core Campus Housing Precinct in Clemson, S.C. The firm, in association with VMDO Architects, will completely replace all building infrastructure systems on the Georgia Tech project, making the facilities accessible to the disabled and providing new student amenities. A new 8,400-square-foot addition will connect the two residences, fulfilling the original 1940 master plan, and feature a fitness center, multipurpose meeting room, classroom, and small group study rooms.

“The 616 residents will enjoy new expanded social and study lounges, restrooms and laundries on every Materials • Technology • Trends

floor,” said Ron Stang, AIA, LEED AP and chairman for Stevens & Wilkinson, Georgia. “The renovation scope includes incorporating new elevators; converting existing, open attic spaces into two new residential floors; and replacing slate roofs and historically accurate windows.”

Exterior grounds also will be redesigned to create new outdoor spaces for recreation and entertainment, as well as a new accessible route through the sector of campus where the residences are located.

The three-year, 125,000-squarefoot project is on track to achieve LEED Gold certification from the U.S. Green Building Council.

“The renovation of the halls sets the stage for the establishment of enriched student living accommodations that are in keeping with the high level of standards for which Georgia Tech is known,” said Stang.

Renovation statistics include 63,259 square feet of floor space and four stories at Glenn Hall; 53,116 square feet and three stories at Towers Hall; and 8,400 square feet at the New East Campus Commons. The Glenn and Towers renovation is targeted for completion in 2015.

The Clemson University Core Campus Housing project is an ongoing venture that follows a 2002 Campus Master Plan decision to demolish and replace three major buildings in the middle of the university’s campus, a quest to fundamentally reimagine the entire Core Campus Precinct. As part of the Campus Master Plan, a study was conducted to answer the question: “How might forward-looking approaches to housing, academic, dining, and student life programs be combined into an intense, innovative, and dynamic mixed-use center for Clemson University?”

To resolve the question, VMDO Architects, the firm directing the design of the 700-bed housing initiative, sought the collaboration of Stevens & Wilkinson in conjunction with Sasaki Associates to develop a clear and engaging vision for the precinct’s evolution.

“The design fits very well with the Campus Master Plan and has embellished it in ways we could never have otherwise articulated,” said Gerald Vander May, director, campus planning for www.masonrydesignmagazine.com

700 Georgia Tech students will enjoy renovated housing at the Glenn and Towers Residence Halls.

(PRNewsFoto/Stevens & Wilkinson)

Stevens & Wilkinson redesigns student housing at Clemson University.

(PRNewsFoto/Stevens & Wilkinson)

Clemson University. “The program was very challenging, but through innovative problem solving and tireless interaction, the team has taken the complex goals of the university and fashioned a vision that has taken root.”

The architecture, engineering and landscape design services provided by Stevens & Wilkinson will involve 179,000 residential square feet, 76,000 dining square feet, and 5,000 academic square feet, resulting in 260,000 gross square feet of new construction and 700 beds. The Clemson University Core Campus Housing project is scheduled for completion in 2016.

“Beyond square footage and new construction, the project aspires to much more, including the design and development of quality campus life for students and new forms of housing that support the university’s desire for a multi-purpose, mixed-use center of living and learning,” said Ashby Gressette, AIA and president of Stevens & Wilkinson. ◗MD Fall 2014 | M a s o n r y D e s i g n

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Industry News

Golisano Institute for Sustainability Among DBIA National Award of Excellence Winners The Design Build Institute of America (DBIA) has announced its 2014 Project of the Year and National Award of Excellence winners. The Denver Union Station Transit Improvement Project has been bestowed with DBIA’s highest honor, Project of the Year. Among the other winning projects is the Golisano Institute for Sustainability in Rochester, N.Y. “This year’s award competition was the most rigorous to date with a greater emphasis on best practices and teamwork, as well as the successful delivery of the project,” says Lisa Washington, CAE, DBIA’s executive director/CEO. Recognized for exemplary collaboration and integration in design-build project delivery, the award-winning projects were evaluated by a distinguished panel of industry experts. This year, 25 projects in nine categories were awarded National Awards of Merit. One project in each of the nine categories was then considered for best in category as a National Award of Excellence winner along with Excellence in Design, Process and Teaming awards, and Project of the Year. The selected projects showcase design-build best

practices, in addition to achieving budget and schedule goals and exceeding owner expectations.

DBIA 2014 Excellence in Design – Golisano Institute for Sustainability The Golisano Institute for Sustainability at Rochester Institute of Technology (RIT) in Rochester, N.Y., wanted a signature building that would serve as a living laboratory for scientific discovery and experimental learning that could serve as the Western Gateway to RIT. The result is an 84,000-square-foot complex, comprised of a fourstory research and three-story academic and office building connected by a four-story galleria. It houses laboratories, classrooms and office space, with high-performance design features that make it a living laboratory of sustainability. The Golisano Institute is among the first in the world to offer a Ph.D. program in sustainability.

Owner: Rochester Institute of Technology Design-Builder, Superintendent and Estimator: LeChase Construction

Golisano Institute for Sustainability 8

M a s o n r y D e s i g n | Fall 2014

Materials • Technology • Trends

Architect: SWBR Design Architect: FXFOWLE Engineers: M/E Engineering, Stantec BIM Specialist/Construction: Loisos + Ubbelohde BIM Specialist/Design: Hale Technology Specialty Contractor: Leidos (formerly SAIC Energy) Specialty Consultants: Wheaton & Sprague Engineering, Inc. and Horizon Engineering Associates Other: 7Group DBIA 2014 National Award of Excellence by Category winners are as follows: Aviation – The San Diego International Airport Terminal 2 and Airside Expansion, San Diego, Calif.

Civic – FY11 228 PN UEPH Schofield Barracks, Fort Shafter, Oahu, Hawaii Commercial/Office – Wendell August, Grove City, Pa. Education – Golisano Institute for Sustainability Research Building, Rochester, N.Y. Healthcare – California Health Care Facility Stockton, Stockton, Calif.

Industrial/Process/Research – Rolls-Royce Advanced Aerofoil Machining Facility, Prince George County, Va. Rehabilitation/Renovation/Restoration – Henry M. Jackson Federal Building Modernization, Seattle, Wash.

Transportation – Denver Union Station Transit Improvements, Denver, Colo.

Water/Wastewater – Agua Nueva Water Reclamation Facility, Tucson, Ariz. ◗MD

Business Briefs GZA GeoEnvironmental, Inc. Acquires Huff & Huff, Inc. of Oak Brook, Ill. Norwood, Mass.-based environmental and geotechnical consulting firm GZA GeoEnvironmental, Inc., has acquired Huff & Huff, Inc., of Oak Brook, Ill. Huff & Huff is a multi-disciplined consulting engineering firm providing environmental, natural resources and compliance consulting services to the private, public, architectural/engineering and transportation sectors for more than 35 years.

Linda Huff, P.E., and Jim Huff, P.E., principals of the company, have joined GZA as vice presidents; their staff of 35 employees also will join GZA. GZA will consolidate staff currently located in its Burr Ridge, Ill., office with the Huff & Huff staff in Oak Brook. As such, GZA will greatly www.masonrydesignmagazine.com

expand its breadth, service areas and geographic presence in the Midwest and in the national transportation markets, the firm says.

“It is with great pleasure that we announce Huff & Huff as a subsidiary,” said William Hadge, GZA president and CEO. “The company has a strong rep-

utation for its diversified expertise; this proficiency has been the hallmark of Huff & Huff in more than 23 states over a period of 35 years.” ◗MD

Huff & Huff is a multi-disciplined consulting engineering firm.

Fall 2014 | M a s o n r y D e s i g n

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Industry News

U.S. and U.K. Building Owners to Increase Involvement With BIM in Next Two Years While building owners may not always directly use building information modeling (BIM), they are increasingly recognizing its value on their projects. McGraw Hill Construction has released its new SmartMarket Report, The Business Value of BIM for Owners, which demonstrates that owners expect to grow their involvement with BIM rapidly: • 40% of U.S. owners and 38% of U.K. owners expect that more than 75% of their projects will involve BIM in just two years, with a particularly high level of growth in the U.S. • Growth in the U.K. is being driven by the approaching implementation of a central government mandate requiring use of BIM on all national public projects by 2016, with over two thirds (67%) of U.K. owners reporting that the mandate has a high impact on their use of BIM.

ensure that construction sectors are becoming more globally competitive.”

The influence of the mandate in the U.K. is driving a much higher general level of involvement with BIM by owners than in the U.S. The study suggests the impact of the mandate in several key areas.

• U.K. owners are more aware of BIM use by the core project team members (architects and general contractors) than their U.S. counterparts.

• Most U.K. owners (88%) are formally measuring the impact of BIM, but only 18% of U.S. owners are.

• More U.K. owners agree that they have experienced key BIM benefits like enhanced visualization, fewer problems due to design errors, coordination issues or construction errors, and beneficial impacts on project schedule and the control of construction costs.

“The McGraw Hill Construction report clearly shows the most important driver of BIM use in Singapore and the U.K. has been their national BIM mandates,” says Phillip G. Bernstein, Vice President of Strategic Industry Relations at Autodesk. “With these two governments continuing to make infrastructure development a high priority, the adoption of BIM has become a critically important step towards minimizing lifecycle building costs and improving the design quality of their built assets. The report makes evident that the desire to become an industry leader is an aspect of the BIM policies of Singapore and the U.K. To this end, a significant impact of these BIM mandates has been to

Mike Putnam, President and CEO of Skanska UK, notes, “The government’s mandate is helping to drive change across the U.K. construction industry. Its 2016 deadline is accelerating the adoption of new tools and processes, which will ultimately deliver the collaboration and data needed to help achieve the industry’s long term objectives.” He adds, “When Skanska is an owner, we mandate BIM and have done so since 2008, as we believe it brings significant benefits.

However, the report clearly shows that there is still much to be done before BIM is routinely used to develop more sustainable buildings and infrastructure.”

Because the findings demonstrate the powerful influence that governments can have on the implementation of BIM, the report also contains research on BIM policies in over 20 major construction markets globally, as well as qualitative research with owners on the use of BIM in Singapore and Scandinavia, two regions with strong, effective support of BIM by their national governments.

According to the report, one aspect of having a central government mandate is the demands it

“The government’s mandate is helping to drive change across the U.K. construction industry.”

— Mike Putnam, CEO of Skanska UK

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M a s o n r y D e s i g n | Fall 2014

Materials • Technology • Trends

places on all players on the project team to be working with BIM. The use of BIM by the full core project team rather than by select players can have a significantly positive impact on BIM’s influence on project outcomes.

The findings also reveal that U.K. owners are using BIM for facility management, capitalizing on the benefits of BIM not just to reduce the cost of building design and construction but also throughout the building lifecycle.

• 54% of U.K. owners already report that they have high capabilities to leverage BIM for building operations and facility management, compared with only 14% in the U.S. • By 2019, almost all (92%) of U.K. owners expect to have high capability to use BIM for building operations, a sharp contrast to the U.S. with just 49% expecting to be at that level.

“For as long as BIM has been used, practitioners have foreseen the potential value to owners of bringing the data-rich models developed by design and construction teams into owners’ facility management and operations environments,” says Steve Jones, Senior Director of McGraw Hill Construction and principal author of this report.

“Recent advances in standards and technology are now putting this within reach of owners everywhere. We are at the beginning of an exciting new era for BIM.” Despite the vigorous involvement with BIM by owners in the U.S. and especially in the U.K., the study also reveals that they would expand their engagement with BIM if there were more industry professionals with BIM skills at design and construction firms, if their operations and maintenance staff had a better ability to utilize the model and if there were standards of model development and exchange to better enable use of the model across the entire project team.

The Business Value of BIM for Owners SmartMarket Report was produced by McGraw Hill Construction in partnership with Autodesk and Skanska. Contributing partners who made this report possible were Balfour Beatty Construction and Mortenson Construction. Additional support was provided by the American Institute of Steel Construction (AISC), the buildingSMART alliance and Hensel Phelps. ◗MD www.masonrydesignmagazine.com

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Permable Pavers at Cliffs Cottage Photo Courtesy of Pine Hall Brick Co.

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M a s o n r y D e s i g n | Fall 2014

Materials • Technology • Trends

MATERIALS East Pier in Lorraine, Ohio.

Photo Courtesy of Jim Maguire/Maguire Photographics

Porous Pavements Q&a: answers from the man who Wrote the Book on the subject

AS THE USE OF POROUS PAVEMENTS GROWS, designers and agencies all over North America are learning for the first time this new approach to stormwater management. People like me have been asked to speak to them hundreds of times in the last five years, in workshops, webinars, consulting sessions, and agency testimonies and reviews. The questions that are raised from all the diverse groups have a lot in common.

Since 2005, I have saved 230 files of porous pavement questions conveyed in e-mails, telephone calls, and conference question-and-answer sessions. This article summarizes the questions that I have received most commonly over the years. My answers to them are based on 12 years of research and experience in the field, including surveying research reports, interviews with national experts, and firsthand observations in the field. There is a huge amount of knowledge about porous pavements now, and it is continuing to grow rapidly. The questions reported here are what people most frequently say they need to know.

BY BRUCE K. FERGUSON, FASLA www.masonrydesignmagazine.com

Fall 2014 | M a s o n r y D e s i g n

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MATERIALS

A home featuring a walkway of permeable pavers Photo Courtesy of Pine Hall Brick Co.

Q: Is there a recognized measure, or index, of permeability for paving materials?

A: Pervious concrete and permeable pavers that are properly designed, installed, and maintained have surface infiltration rates of 140+ in/hr. An example of research suggesting this is “Study on the Surface Infiltration Rate of Permeable Pavements,” accessible through the North Carolina State University website listed at the end of this article.

Q: What is the runoff coefficient?

A: Almost the only runoff coefficient that has ever been measured on properly built porous pavements is zero: There is no runoff, because the surface permeability is so high. But surface runoff coefficient does not take into account the limited capacity of the pavement’s base reservoir: In a long, intense storm, the base could become saturated and overflow, either across the surface or through a perforated drainage pipe if one is provided. At that point, the pavement would in effect be generating runoff. So it would be prudent to use some positive number – not zero – for the runoff coefficient. An example would be to set the runoff coefficient equal to that of the local jurisdiction’s “predevelopment” condition, which might be forest, meadow, or grass. To assign a coefficient larger than predevelopment would be arbitrary. A predevelopment grass surface generates some runoff during large storms, so it provides a valid analogy for porous pavement hydrology.

Q: How much credit should be given for the pavement as a “pervious” surface?

Permeable pavers (PICP) in Minnesota correctly installed with highly permeable single-sized aggregate in the joints.

Photo Courtesy of Bruce K. Ferguson

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M a s o n r y D e s i g n | Fall 2014

A: Correctly designed, installed, and maintained pervious pavements have surface infiltration rates higher than that of almost any natural soil, and several times greater than the maximum possible rainfall intensity anywhere in the country – in other words, greater than anything that already is called “pervious.” So a surface of this type must be given complete credit for “100 percent perviousness,” as would a meadow or forest. Giving it any credit less than 100 percent pervious would fly in the face of scientific evidence.

Materials • Technology • Trends

A StormPave permeable paving system from Pine Hall Brick.

Photo Courtesy of Pine Hall Brick Co.

Q: What is involved in maintaining the pavement “right”?

A: If you are in a municipality where sand or cinders are spread on the roads for winter traction, then vacuuming will be necessary at least once per year – in the spring, following snowmelt. The key word is vacuuming, with or without simultaneous washing, to lift material out and restore the open, permeable pores. Any washing or sweeping without simultaneous vacuuming would just drive sediment farther down into the pores. In areas where there is no sanding or other routine source of sediment, no special maintenance is needed except when something happens such as construction vehicles tracking sediment onto the surface; then the sediment can be removed by vacuuming.

One of the vital steps in correctly installing pervious concrete is covering it quickly and securely with plastic sheets, and keeping it covered for seven days.

Photo Courtesy of Bruce K. Ferguson

Q: How long will the system last before it becomes a “non-permeable” surface?

A: Just make sure that your pavement is selected, designed, installed, and maintained correctly. If you are duly careful with all these steps, then the installation should be permeable indefinitely.

Q: Pretreatment using a filter strip or vegetated swale is required, right?

A: Absolutely not: Don’t do that! Any upstream soil, even soil that is grassed or mulched, can erode and generate pavement-clogging sediment sometime. Adding a grass strip or forebay would just add more erodible upstream soil. Wherever earth drains down toward a pavement edge, a swale should be added to divert runoff and sediment away from the pavement. It is OK to drain impervious roofs or pavements directly onto a porous pavement, because those surfaces don’t produce sediment the way soil does.

www.masonrydesignmagazine.com

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MATERIALS

Permeable paving system in a residential area.

Photo Courtesy of Pine Hall Brick Co.

Q: should porous pavement be avoided where trees are present? should overhanging trees be removed?

A: The only thing overhanging trees do to porous pavements is deposit their annual drop of organic debris. The debris decomposes to a minute fraction of the volume it started with. Vacuuming might be called for after a number of years, to reopen the pavement’s pores. Trees are immensely helpful for water resource management, counteracting the urban heat island, shading urban open spaces, and absorbing carbon, and they should not be discouraged.

Q: What is recommended when you have a large chemical spill or hazardous material spill?

A: The same as if a spill occurred anywhere else in your city: immediate and complete cleanup is the legal responsibility of the industry that spilled it, at their expense. No pavement or drainage anywhere is designed for this contingency, outside of the grounds of the industry that produces the chemicals.

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Materials • Technology • Trends

Q: What are the risks associated with hydrocarbon (oil) contamination?

A: Letting oil into a porous pavement’s voids is the whole idea in waterquality improvement. In the pavement, naturally occurring microorganisms biodegrade hydrocarbons before they migrate to the bottom of the pavement. The constituents go off as carbon dioxide and water vapor, and very little else; the hydrocarbons cease to exist as water-quality pollutants. An example of the research suggesting this, accessible on several web archives, is C. Pratt’s 1999 paper, “Mineral Oil Bio-Degradation Within a Permeable Pavement: Long Term Observations.”

Q: What’s the use of porous pavement on a clay soil, or where there is a shallow water table, and water cannot be absorbed into or treated in the soil? Is a subdrain necessary to ensure good performance? Can a porous pavement work here?

A: On clay soils, permeable pavements do not make the 100-year storm disappear; a perforated drainage pipe is ordinarily required to discharge excess water. But most of the water-quality benefit of any permeable pavement occurs within the pavement structure, without regard to the underlying soil; the soil is only a redundant “backup” system. Porous pavements on clay soils do: • Reduce runoff coefficient and impervious cover • Detain peak flows • Treat water quality • Recharge aquifers by gradual infiltration of rainwater from small, frequent, yearround storms

Q: What is the cost difference between standard and porous pavements in the same situation?

A: Pervious concrete costs approximately 20 percent more than conventional impervious concrete, because of its high cement content and specialized quality control.

Permeable pavers cost about the same as pervious concrete. When you use these materials intelligently in a site plan to absorb and treat stormwater, and the municipality gives you credit for their stormwater functions, then the use of porous paving ordinarily reduces total development cost by reducing or eliminating the need for additional stormwater facilities.

Permeable pavers on red clay soil in Georgia.

Photo Courtesy of Bruce K. Ferguson

Letting oil into a porous pavement's voids is the whole idea in water-quality improvement. In the pavement, naturally occurring microorganisms biodegrade hydrocarbons before they migrate to the bottom of the pavement. www.masonrydesignmagazine.com

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MATERIALS

A permeable paver from Pine Hall Brick.

Photo Courtesy of Pine Hall Brick Co.

Q: How does the use of pervious concrete affect the pavement life in cold climates?

A: Properly installed pervious concrete is free from freeze-thaw issues as long as the surface concrete layer drains freely down into an open-graded aggregate base, thence rapidly into the soil or a perforated drainage pipe. The material’s durability is ensured by adequate strength, which comes from proper installation; further help comes from air entrainment and reinforcement with polymer fibers.

Q: salt used for deicing... does it clog the paving?

A: Deicing salt does not clog porous pavements. The whole idea of deicing agents is that they dissolve readily in snow and water, lowering the water’s thawing temperature. The dissolved salt flushes through with meltwater and does not accumulate. Ongoing research at the University of New Hampshire suggests that many porous pavements require less salting than impervious pavements, because the thawed meltwater drains so readily away through the pores.

Q: Do you use traditional trench backfill material under porous pavement, or do you use open-graded material instead?

A: The base material must be open-graded (single-sized) aggregate such as ASTM No. 57, so it can store and convey water.

Q: are there standard specs (Dot type) for pervious concrete?

A: The American Concrete Institute has adopted Specification 522.1, Pervious Concrete. In addition, the National Ready Mixed Concrete Association has a specialty certification program to help identify qualified pervious concrete installers. It is vital that industry standards such as these be followed – failures have occurred where established standards have been ignored.

Q: We need options for cost, appearance, etc.

A: A material that deserves to be used more is permeable pavers, also known as open-jointed block or PICP (permeable interlocking concrete pavement). These are manufactured units with openings in the joints where single-sized aggregate 18

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gives the pavement its permeability. Pavers manufactured to ASTM standards (as almost all of them are) are extremely strong and durable units. It is rather easy to install them correctly – just stick to the long-established guidelines of the Interlocking Concrete Pavement Institute. This is not the same construction as bricks on sand! Firmly specify that only single-sized aggregate must be used for the base, setting bed, and joint fill.

Q: For what parts of the country are porous pavement available, in terms of freeze-thaw, etc.? What site conditions, such as soil type, limit its use?

A: Properly selected, designed, constructed, and maintained porous pavements work wherever they are located. Improperly selected, designed, constructed, and maintained ones do not.

Q: How widespread is this usage? How much (and how rapidly) is it changing? What is the future for widespread adoption?

A: Porous pavements still are a small proportion of all the paving being done in the world, but they are growing at an exponential rate. Developers and suppliers are ready to install these new materials; their motivation is to meet today’s environmental requirements in economical ways. The potential future application of porous paving is vast.

Q: What can my municipality do to encourage the use of porous pavements?

A: Make sure your municipality is not an unnecessary impediment. When a developer proposes porous paving, give it credit for what it can do to satisfy your stormwater requirements: It reduces impervious cover; lowers the runoff coefficient; and absorbs, detains, and treats stormwater.

Q: Where might I find research reports? I need data.

A: Watch websites such as the following for broad new information, links to detailed sources, and continuing updates: • Concrete Pavement Technology Center (search for “pervious”) • Interlocking Concrete Pavement Institute • PCA Southeast • Pervious Concrete • North Carolina State University: • University of New Hampshire • Many additional websites run by proprietary suppliers ◗MD

Options in discharging excess water from a porous pavement’s base reservoir.

Photo Courtesy of Bruce K. Ferguson

This article originally appeared in Stormwater magazine (www.stormh2o.com).

Reprinted with permission of the publication, the author, and the American Society of Landscape Architects. Bruce Ferguson, FASLA, is the Franklin Professor of Landscape Architecture at the University of Georgia and a member of Stormwater’s editorial board. He is the author of the 2005 book Porous Pavements. He can be reached at bfergus@uga.edu.

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(LEFT) Exterior driveway/walkway treated with acrylic, scuffresistant coating. Finishes typically come in natural or wet-look appearance (wet-look shown here).

Photo courtesy of Laticrete

MATERIALS

BrICk Paver InstallatIon metHoDs

BY ARTHUR MINTIE, director of Technical Services, LATICRETE International, Inc.

B

RICK, CONCRETE, PERMEABLE, INTERLOCKING AND STONE PAVERS ARE POPULAR PAVING OPTIONS FOR EXTERIOR PLAZAS, WALKWAYS, DRIVEWAYS AND MASS TRANSIT APPLICATIONS. These pavers are durable, offer many patterns and design options, are able to withstand vehicular traffic, and maintain their integrity in demanding exterior freeze/thaw climates. For the purposes of this comparison, the most common type – brick paving – will be featured.

Brick pavers should be specified to perform in the intended application according to the following industry standards: • Pedestrian paving brick – meeting ASTM C902 (pedestrian – minimum.

2-3/8” [60mm] thickness) • Light traffic paving brick – meeting ASTM C902 (pedestrian and residential vehicular – minimum. 2-3/8” [60mm] thickness) • Heavy Vehicular paving brick – meeting ASTM C1272 (heavy commercial vehicular – minimum 3-1/8” [80mm] thickness) Weather classifications:

• Class SX – exposed to water and freezing • Class MX – exposed to water but not freezing • Class NX – interior only

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MATERIALS

Traffic classifications:

• Type I – for areas that expect extensive abrasion – sidewalks, driveways in public areas • Type II – for areas that expect intermediate pedestrian traffic – residential sidewalks and driveways • Type III – for areas that expect low pedestrian traffic – residential floors and patios For more information on brick pavers and the various setting methods, consult the Brick Industry Association, Reston, Va., www.gobrick.com.

There are three basic types of setting options for these types of pavers in demanding traffic-bearing applications: • Sand Set – Type F • Bitumen Set – Type R • Fixed Mortar Set – Type R There are advantages and disadvantages to the three methods. A specifier will need to make an informed decision concerning the area of use and the amount of long-term maintenance that will be required for each of the systems. The following is a comparative analysis of the three methods:

(ABOVE) Figure 1: AM Sand Set Render

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Sand Set Pavers Sand set pavers have the lowest initial cost of the three options. The setting system can be altered depending on the level of traffic that will be exposed to the installation system. The installation starts with grading and compacting the soil under the pavers. A geotextile drainage layer can be placed over the soil to help facilitate drainage. Next, a layer of aggregate (3/4” [19mm]) is placed and compacted well over the soil (up to 95 percent of standard Proctor density as specified in Materials • Technology • Trends

ASTM D698 or to ASTM D1557 for areas subjected to vehicular traffic). The aggregate layer is then “rough screeded” to get the level of this layer close to the design level. This layer can be adjusted depending on how robust the setting system is intended to be. For example, heavy vehicular traffic will require 8” to 12” (200-300mm) of the aggregate base. Pedestrian traffic areas generally require 4” to 6” (100-150mm) of the aggregate base. This base layer serves as the support for the sand set paving system. In addition, the aggregate base facilitates water run-off and drainage.

Next, the sand layer is used to bed the pavers. The sand layer (meeting ASTM C33 or CSA A23.1 (coarse, clean masonry sand) can range in thickness from 1” to 2” (2550mm) thickness. The sand layer is placed compacted and screeded to the desired height. The pavers are then dropped into the sand layer. The pavers are tamped/compacted into place and finished to the desired height with a vibrating plate compactor capable of exerting 3,000 to 5,000 psi (1300-2200 kN) of centrifugal compactions force operating at 75-90 hertz. A plastic or rubber mat should be used on the compactor to avoid paver damage. Generally, at least two passes are made to seat the pavers.

Traditional masonry sand is swept into the paver joints to fill the joints. This process also helps to secure the pavers into place.

The pavers are then compacted again until the joints are full. Polymeric sand can also be used for this process and is generally worth the cost upgrade. The polymeric sand will harden and set firm to a degree once it is exposed to moisture. The polymeric sand stands up better to point loads within the joints and resists “wash-out” when compared with traditional sand swept joints.

Second-generation/high-performance polymeric sands (pictured) provide even superior performance and resist erosion, “blowout,” and they help prevent weed growth. In addition, these polymeric sands are permeable, allowing rainwater and oxygen to permeate.

Possibly the most critical issue with sand set pavers is the edge restraints. Edge restraints can range from typical paver edging strips and spikes to poured concrete curbs and sidewalks. Most sand set paver issues arise from the fact that the edge restraints are not designed to withstand the “pushing” and “movement” that traffic will place on the system. The edges can push out, which in turn causes the paving system www.masonrydesignmagazine.com

(BELOW) High-performance polymeric paving sand used in the joints of this installation. These paving sands come in various colors to compliment any architectural design.

Photo courtesy of Laticrete

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MATERIALS

Most sand set paver issues arise from the fact that the edge restraints are not designed to withstand the “pushing” and “movement” that traffic will place on the system.

to sink and start to experience issues with maintaining its designed level. Sand set pavers will require periodic ongoing maintenance to fix areas that have moved, or dipped to vehicular patterns. Therefore, ongoing, long-term maintenance costs should be factored into the lifecycle analysis of sand set paving systems.

Advantages of Sand Set Pavers:

• • • • • • • •

Economical Low initial installation cost Designed to accommodate minor movement without failure Easily repaired User-friendly installation materials No off-gassing of installation products Easy access to repair underground utilities Can be designed as a permeable pavement

Disadvantages of Sand Set Pavers:

• May require a thicker base for heavy-duty applications • Edge restraints commonly experience problems with movement and blowout • Pavers can show traffic patterns • Tree roots can disturb installation • Drifting of pavers can occur • Ongoing maintenance is required • Traditional sand filled joints can experience erosion during periods of heavy rain and maintenance • Of the three systems, sand set pavers have the highest lifecycle cost • No installation warranties apply Bitumen Set Pavers Bitumen set pavers are considered the middle ground as far as cost is concerned (see figure 2). A suitable concrete base or a 3” to 6” (75-150mm) bituminous binder base placed over a compacted aggregate base (8” [200mm]) is required for this installation system. Once the concrete base is poured and properly cured, a layer of 3/4” (19mm) asphaltic bitumen is placed over the slab followed by a 2-percent modified neoprene tack coat layer. This layer acts as an adhesive as the pavers are dropped into place. Once the pavers are set into place, the joints are filled in similar fashion to the sand set pavers with traditional masonry sand or polymeric sand.

For better and longer-term joint performance, second-generation/high-performance polymeric sands also can be used with the bitumen installation method.

The bitumen layer is not considered a permanently fixed system in that the bitumen does allow some movement to take place. However, this method also requires good edge restraint to prevent paver separation and edge blowout. In addition, over time, vehicular traffic patterns still can reflect in the finish layer as the bitumen can experience long-term fatigue.

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Advantages of Bitumen Set Pavers:

(ABOVE) Figure 2: Bituminous Render

• Mid-grade initial installation cost • Designed to accommodate minor movement Disadvantages of Bitumen Set Pavers:

• Edge restraints commonly experience problems with movement and blowout • Pavers can show traffic patterns due to long-term bitumen fatigue • Drifting of pavers can occur • Little tolerance for paver thickness variations • Ongoing maintenance is required • Traditional sand swept joints can experience erosion during periods of heavy rain or maintenance • Bitumen can give off a ‘petrol’ odor • Bitumen is not considered to be an environmentally friendly product • Bitumen can off-gas (volatile organic compound) • Bitumen is not a user-friendly product (labor generally does not like this method) • No installation warranty in effect

The bitumen layer is not considered a permanently fixed system in that the bitumen does allow some movement to take place.

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MATERIALS

(RIGHT) Figure 3: Mortar Set Pavers – Bonded Thick Bed & Thin Bed Methods

Mortar Set Pavers Of the three installation types, the mortar set system is considered to be the most permanent fixing system (see figure 3). The mortar set system typically requires a concrete base and aggregate drainage layer beneath the concrete slab. Once the concrete slab is in place and properly cured (e.g. 28 days at 70ºF [21ºC]), the mortar setting system can be placed. Both the thick-bed methods (bonded or unbonded), or the bonded thin-bed method can be used for this application.

Mortar set pavers are permanently fixed in place and require little long-term maintenance. Of the three paver setting methods, mortar set pavers have the lowest lifecycle cost.

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Exterior pavers can be exposed to any number of potential spills, oils, contaminants and other types of soiling, as well as exposure to impact and scuffing damage.

Advantages of Mortar Set Pavers:

• • • • • • • • • •

Low maintenance required Low lifecycle cost Resistant to point loading Resistant to fatigue and reflecting traffic patterns Resistant to edge blowout User-friendly installation materials Installation materials do not off-gas Long-term manufacturer performance warranties can apply No weeds will grow in between the joints Insects will not be able to disrupt the appearance of the paving system

(BELOW) Exterior driveway/walkway treated with acrylic, scuffresistant coating. Finishes typically come in natural or wet-look appearance (wet-look shown here).

Photo courtesy of Laticrete

Disadvantages of Mortar Set Pavers:

• High initial installation cost • Repairs are the most difficult and expensive Paver Protection:

Exterior pavers can be exposed to any number of potential spills, oils, contaminants and other types of soiling, as well exposure to impact and scuffing damage. To help protect the pavers, they can be sealed/treated with durable acrylic, scuffresistant coatings that provide a barrier against staining, damage from de-icing salts, and abrasion (see driveway image below). The coatings come in a variety of finish types, including brilliant high-gloss, wet look finish, color-enriching finish, and no gloss finish type.

Some of these sealer types will deepen and enhance the inherent color of the paver while drying to a clear finish that will not leave the surface slippery.

Summary Brick and other types of masonry paving can add character and aesthetic sophistication to any space. The versatility of the modules, patterns, colors, textures, and joint and paver finishes can create endless design options to fit any condition, use, and customer taste. Proper installation and finishing techniques can result in durable, longterm performance and design for years. ◗MD www.masonrydesignmagazine.com

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Design trends

aWarD-WInnIng HarDsCaPe DesIgns eDIteD By Cory sekIne-PettIte | SPECIAL THANKS TO THE ICPI

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A look at three of ICPI’s 2013 HNA Hardscape Project Award Winners

www.masonrydesignmagazine.com

At Masonry Design, we’re always on the lookout for beautiful, innovative, and unique projects to profile. And sometimes, in order to find those projects, we must take a step back and gaze toward our feet. Indeed, there are many hardscaping and paving projects worthy of praise, and with the 2014 HNA Hardscape Project Awards scheduled to be announced as we go to press with this issue, the editors thought it would be appropriate to take a look back at award-winning hardscape designs from 2013. We chose the following three projects for their exemplary design, their integration into their environments, and other attributes that earned these projects top honors from the Interlocking Concrete Pavement Institute (ICPI).

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DESIGN TRENDS

smotHers Park

t

HE CREATION OF A “PEOPLE STREET” or festival street for the City of Owensboro, Ky., was a key component of the Smother’s Park project, which encompasses five blocks on the Ohio River. In addition to creating a safe place for pedestrians, the landscape architect needed to design and detail the street to sustain busy vehicular traffic, while complementing the newly created Smother’s Park. Clay brick pavers were selected early in the design process to fit the character of the downtown – as well as to stand the test of time.

One of the design challenges was creating a flood-resistant pavement. The bricks were detailed with a concrete base and sand bedding, while others were installed with bituminous bedding, a membrane, and the bricks.

Award: Clay Brick – Commercial/Municipal – More than 15,000 sf Project Title: Smother’s Park and Riverfront Crossing Project Location: Owensboro, Ky. Square Feet of Project: 150,000 Contractor: Decorative Paving Main Product Manufacturer: The Belden Brick Company Project Designer: EDSA, Landscape Architect

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DESIGN TRENDS

manatee BrIDge

t

HE CITY OF STUART, FLA., REVITALIZED AN IMPORTANT WATERFRONT DINING AREA using Designer Keith Pelan’s choice of vibrant colors and paver fan patterns that suggest ripples in the water. The contractor, Sunshine Land Design, solved challenges including installation of a decorative concrete ribbon right through the middle of the paver fan pattern. Construction involed taking precautions to not pollute the waterway below the bridge.

If you’ve ever had the pleasure of visiting Florida, then you know the state features many pedestrian bridges, and the local designers, engineers, and installers take great pride in their work. The colorful Belgard pavers used in the project fit right in to the coastal environment and architectural style of Stuart, yet they also draw the eye, which gently forces pedestrians to take notice of the intricate fan pattern and flowing concrete details carefully created by Kimley-Horn and Associates.

Award: Concrete Paver – Commercial/Industrial – 1,000 to 15,000 sf Project Title: Manatee Bridge Project Location: Stuart, Fla. Square Feet of Project: 2,500 Contractor: Sunshine Land Design Main Product Manufacturer: Belgard Project Designer: Kimley-Horn and Associates

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DESIGN TRENDS

PaCker resIDenCe

t 36

HE PACKER RESIDENCE SITS ON A SLOPED, MOUNTAIN SIDE. One drives up a curving drive to the entry level and is met by segmental walls and natural boulder walls that create an welcoming entry court.

Guests receive a sense of arrival, and the owners have open usable space.

On the entry level, one walks through a breezeway to view the expansive valley, as well as the relaxing fireplace and living area below. Walking down the stairway of natural slab cut stone, one enjoys a landscaped garden ending at the patio living area. To the left is a pool with an ample hardscaped deck large enough for a party or for just the intimacy of two. Separating, yet joining the two areas is the grill island, bar and pizza oven. On the other side of the living area and down a few steps are raised planters and a greenhouse. Leaving the fenced area, one can traverse a path of natural slab stone risers along which a waterfall flows down to a natural firepit area to view the lower front yard and property entrance.Walking trails connect this area with other wooded trails on the property and back up to the entry level.

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Materials • Technology • Trends

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DESIGN TRENDS

“Our advice to a designer for a project of similar scale to The Packer Residence would be: Consider equally, both natural stone and concrete products for a large-scale project,” says Brendan Hoover, chief operating officer for PA Landscape Group Inc., the contractor on the project. “The two in combination can supply the best colors, textures and finishes. We believe that no one product line can provide all of these aspects in their entirety on a project of this scale.” ◗MD Award: Combination of hardscape products – Residential – More than 4,000 sf Project Title: Packer Residence Project Location: Harrisburg, Pa. Square Feet of Project: 6,200 Contractor: PA Landscape Group, Inc. Main Product Manufacturer: Techo-Bloc Project Designer: PA Landscape Group, Inc.

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Materials • Technology • Trends

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Project Spotlight

Bombay sapphire’s new Facility ALL PHOTOS COURTESY OF HEATHERWICK STUDIO / IWAN BAAN 40

M a s o n r y D e s i g n | Fall 2014

BY CORY SEKINE-PETTITE Materials • Technology • Trends

HeatHerWICk stuDIo Converts an olD PaPer mIll Into a BeautIFul, BotanICal DIstIllery.

PICTURED HERE IS THE NEW BOMBAY SAPPHIRE DISTILLERY IN LAVERSTOKE, HAMPSHIRE, UK. Heatherwick Studio retrofitted an old paper mill into gin-maker Bombay Sapphire’s first in-house production facility.

Completed in September of this year, this new botanical distillery – which features two glasshouses to grow specimens of the 10 exotic plant species used in the Bombay Sapphire distillation process – has achieved a BREEAM ‘outstanding’ rating for sustainability; the first facility in the drinks manufacturing industry to be awarded this rating. Since the 5-acre site is located within a designated conservation area, Bombay Sapphire and the design team required a green strategy to put Laverstoke facility back to good use.

Bombay Sapphire commissioned the project in 2010, and hired a team led

by Heatherwick Studio to reimagine a derelict, water-powered paper mill as a world-class distillery that also would be open for members of the public to www.masonrydesignmagazine.com

(ABOVE) The new glasshouses are used to grow the botanicals for Bombay Sapphire’s gin.

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Project Spotlight: BOMBAY SAPPHIRE DISTILLERY

(ABOVE) The Test River, which flows through the property, plays a crucial role in the design and function of the distillery.

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visit. The site contains more than 40 old buildings, many of historical significance and showcasing fine examples of Victorian and Edwardian architectural styles, which have been renovated and restored. Central to the development of Heatherwick’s master plan is the Test River, which was previously contained within a narrow, high-sided concrete channel and largely covered over as the site was developed over many years.

According to the BRE Trust, the largest UK charity dedicated specifically to research and education in the built environment and a key organization in developing BREEAM, sustainability was vitally important to Bombay Sapphire at Laverstoke Mill. The design of a low-carbon, BREEAM assessed, flagship distillery underpinned the design, which was supported by the client and design team from the outset.

“There was a strong desire to reduce any impact on the existing environment, and ‘cradle to grave’ considerations formed a major part of the design philosophy,” the Trust says on its BREEAM website. “This included the recycling and reuse of existing building materials from demolished buildings across the site, and an ingenious idea to reuse spent botanicals from the distillation process as fuel for the biomass boiler – supplying heat and hot water to the whole site. www.masonrydesignmagazine.com

The site contains more than 40 old buildings, many of historical significance.

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Project Spotlight: BOMBAY SAPPHIRE DISTILLERY

Commissioning date: 2010 Completion: September 2014 Client: Bombay Spirits Company Ltd.

PROJECT TEAM Thomas Heatherwick, Eliot Postma, Katerina Dionysopoulou, Alma Wang, Ville Saarikoski Consultants: Project Manager – Meller Ltd. Executive Architect – GWP Landscape Architect – GWP Glass House Structural Engineers – ARUP M&E Engineer – Couch Perry Wilkes Civil and Structural Engineers – Graham Schofield Associates Planning Consultant – CBRE Heritage Consultant – Giles Quarme Associates Environmental Consultant – SKM Enviros Horticultural Advisor – Royal Botanical Gardens of Kew Process Consultant – Alectia BREEAM Assessor – GWP Project Services Ltd. Contractors/Suppliers: Glasshouse contractors – Bellapart Glass Supplier – CRICURSA Environmental performance: International BREEAM Award for Industrial Design for the Bombay Sapphire Distillery process buildings

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“The use of cutting-edge technologies was encouraged by the client,” BRE’s report on the distillery continues. “This has seen a multi-functional renewable energy strategy implemented – including a 6kW hydroelectric turbine located in the River Test.”

The project scored 100 percent of available credits in the Energy and Management categories and more than 90 percent of credits in the Water, Materials and Waste categories. There was an additional 5 percent worth of innovation credits scored for exemplar performance levels achieved.

“Sustainability is vitally important to Bombay Sapphire. It runs through all that we do, and has underpinned all of our plans for the distillery,” said Nik Fordham, master distiller. “As such, we were delighted to achieve an outstanding BREEAM design stage accreditation for the distillery process buildings. BREEAM has kept sustainability high up the agenda and has provided a benchmarking mechanism that feeds into our corporate sustainability policy and key performance indicators. Fundamentally, we also believe building such a sustainable distillery makes financial sense, increasing efficiency and long-term operational energy and water use savings.”

The river became the central organizing device to make sense of the complex site and this accumulation of facilities, Heatherwick Studio reports. The river has been widened and its banks opened out and planted in order to transform it into a route that draws visitors through the site to a newly defined courtyard at its center, surrounded by historic buildings. To make the water visible and valuable once more in this area, the river has taken on more than twice its original width and its banks reshaped with planted foreshores. In addition to providing power for industry in South East England, the Test River in its entirety is 40 miles long and known for great trout fishing. Further, it played a crucial role in Richard Adams’ novel “Watership Down.”

Heatherwick Studio’s master plan proposed the creation of two, new glasshouses to grow specimens of the botanical ingredients used in the Bombay Sapphire distillation process. These glasshouses – one of them containing a humid, tropical environment and the other a dry, temperate Mediterranean climate – emerge from the northern still house to sit within the waters of the widened river. The connection to the still house allows waste heat from the distillation process to be recycled to maintain the warm climates for the plant species to flourish. According to Heatherwick, the fluid geometry of these new glass buildings was influenced by recent advances in glass technology and by Britain’s rich heritage of botanical glasshouse structures. ◗MD

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THOMAS HEATHERWICK Thomas is an Honorary Fellow of the Royal Institute of British Architects; a Senior Research Fellow at the Victoria & Albert Museum; and has been awarded Honorary Doctorates from the Royal College of Art, University of Dundee, University of Brighton, Sheffield Hallam University and University of Manchester. In 2013, he was elected a Royal Academician by the Royal Academy of Arts, London.

In 2004, Thomas was the youngest practitioner to be appointed a Royal Designer for Industry. He was awarded the Prince Philip Designers Prize in 2006 and the London Design Medal in recognition of his outstanding contribution to design in 2010. In 2013, he was awarded the Critics’ Circle Visual Arts and Architecture Award, and he was appointed Commander of the Order of the British Empire (CBE) for services to the design industry.

Heatherwick Studio was formed in 1994. Today, a team of more than 140 architects, designers and makers work from a combined studio and workshop in Kings Cross, London, UK. Notable projects include the Olympic Cauldron for the 2012 Olympic Games, the New Bus for London, and the award-winning UK Pavilion for the Shanghai World Expo 2010.

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Supplies

| Mortars & Admixtures

Pictured here are few of the latest examples of new mortars and admixtures that would serve you well on your next project. To get your goods or services featured in the department, contact Editor Cory Sekine-Pettite at cory@lionhrtpub.com.

1 2

1 Jahn M150 Casting Mortar www.cathedralstone.com Jahn M150 Casting Mortar is specially formulated for casting replacement pieces for architectural details. It can be custom colored to match the original and is ready for use after only two days of curing. Jahn M150 dry-pack mortar provides fine replication of detail and true masonry texture, maker Cathedral Stone reports. M150 is developed to replicate the appearance of natural stone, terra cotta, or architectural concrete and provide “limitless design possibilities.” This quality mortar is completely mineral based, free of any latex or acrylic bonding agents or additives, and is durable and highly resistant to freeze-thaw damage.

Product Highlights: • Single-Component: Mixes with water only, improving quality control and consistency of application.

• Contains no latex or acrylic additives • Factory controlled: No field chemistry resulting in product variation.

• Custom colored upon request: Closely matches existing masonry. Choose from standard or custom colors.

• Dry Pack System: Stronger, denser castings eliminate air voids and produce higherquality reproductions.

• Highly resistant to carbonation: Superior long-term, reinforcing steel protection.

2 Amerimix Core Fill Grouts www.amerimix.com Amerimix 600 CG and 600 FG are a factory blend of cementitious materials and dried coarse aggregate (AMX 600 CG; concrete sand and 3/8” gravel and AMX 600 FG; concrete sand). Recommended for load-bearing masonry construction, Amerimix Core Fill Grout is used for filling masonry blocks and providing vertical and horizontal reinforcing. Amerimix says the product meets ASTM C476 and C1019 requirements, as well as ACI 530 code and ICC requirements for masonry grout.

Grouts are available in varying compressive strengths, and in course and fine grit. Additionally, Core Fill Grout is available in small bags and bulk bags, which is for use with the AMX Silo System.

The company says a pre-blended bagged product provides better consistency than a field-mixed product, and that Core Fill Grout offers excellent flow to minimize consolidation. The product is

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Materials • Technology • Trends

available in multiple strengths, including 3,000 psi and 5,000 psi at 28 days.

3 Instant Mortar Match www.Instantmortarmatch.com Instant Mortar Match will change the appearance of mortar with the tip of a brush. Used by both professionals and do-it-yourselfers, this patented, permanent, easily applied dye can be used for both interior and exterior applications. Instant Mortar Match allows you to visually correct or mask sloppy mortar stains or poor workmanship on masonry repairs. It also allows you to match new mortar color to a pre-existing mortar, and restore or change the shade of your existing mortar.

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4 Quikrete® Mortar Mix www.quikrete.com Quikrete® Mortar Mix is a construction-grade mortar mix designed for laying brick, concrete masonry units, and stone. The standard formulation meets ASTM C270 and C1714 for Type N mortar.

It is available in gray and additional colors by special order. Color also can be added to the product as it is mixed by adding Quikrete Stucco and Mortar Color (#1319) to the mixing water. Twenty standard colors are available. Each 80 lb (36.3 kg) bag of Mortar Mix will lay up to 37 standard bricks or 13 standard (8” x 8” x 16” [200 x 200 x 400 mm]) blocks. ◗MD

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advertiser’s index page# BC

Amerimix www.amerimix.com

888.313.0755

39

Arriscraft International, Inc. www.arriscraft.com

800.265.8123

C2

Laticrete International, Inc. www.laticrete.com/mvis

800.243.4788

1

Mortar Net Solutions www.mortarnet.com

800.664.6638

5

Pine Hall Brick Company, Inc. www.pinehallbrick.com

800.334.8689

GET YOUR PRODUCTS FEATURED! The winter 2014 Supplies section will feature air & vapor barriers. Send your product descriptions and images to Cory Sekine-Pettite at cory@lionhrtpub.com. www.masonrydesignmagazine.com

company-phone-website

28-29 SPEC MIX, Inc. www.specmix.com 11

Tradesmen’s Software www.tradesmens.com

888.773.2649

800.494.4899

Fall 2014 | M a s o n r y D e s i g n

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DESIGNED BY PROS. USED BY PROS. AmerimixÂŽ. The CLEAR choice for mortars, grouts and stucco.

Consistency. Labor reduction. Enhanced productivity. ASTM specifications pretesting. Reduced waste and risk. These are the dynamic benefits that make preblended Amerimix products the choice of professionals everywhere. Our experienced sales, customer service and technical support teams are ready to help you select the right Amerimix product for your high-volume application. Visit Amerimix.com or call 888-313-0755.

AmerimixÂŽ is a registered trademark of Bonsal American, Inc., an Oldcastle Company.