Interlock Design - Fall 2018

THE OFFICIAL PUBLICATION OF THE INTERLOCKING CONCRETE PAVEMENT INSTITUTE

interloc volume 25 number 4

HNA PAVER PROJECT AWARDS KOREA INDUSTRY CONFERENCE INLAND PORT PICP NEW ASCE PICP STANDARD

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® EXECUTIVE DIRECTOR: Charles McGrath, CAE PUBLISHING DIRECTOR: Dennis Smith EDITORIAL DIRECTOR: David R. Smith CONTRIBUTING EDITOR: Robert Bowers, P.Eng.

Fall 2018

DESIGNER: Stephanie Pendell

A creative application of 180,000 sf of concrete pavers in Southlands Mall in Aurora, Colorado, earned a winning spot in the HNA Project Awards contest.

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FEATURES 05 HNA AWARDS 2018— CREATING ELEGANCE AT EVERY SCALE

16 SIDEWALK AND PUBLIC SPACE DESIGN EMPHASIZED AT 12TH INTERNATIONAL CONFERENCE ON CONCRETE BLOCK PAVING

14801 Murdock Street, Suite 230 Chantilly, VA 20151 Tel 703.657.6900 Fax 703.657.6901 Email icpi@icpi.org ICPI Canada P.O. Box 1150 Uxbridge, ON L9P 1N4 Canada SUBSCRIPTION AND MEMBERSHIP: Qualified design professionals can receive a complimentary subscription—email us at icpi@icpi.org.

For further information about this publication or about membership in ICPI, write to the appropriate address, call 703.657.6900 or fax 703.657.6901.

Send story submissions for consideration to dsmith@icpi.org.

Manage your subscription at www.icpi.org.

Interlock Design is published quarterly by the members of the Interlocking Concrete Pavement Institute (ICPI) for producers, suppliers, contractors, specifiers and users of interlocking concrete pavements.

The opinions expressed in Interlock Design articles are those of the authors and do not necessarily represent the position of the editor or ICPI.

DEPARTMENTS ICPI Webinar Seminars Register at: www.icpi.org/view/events

02 INTERLOCKUTOR CHANGE AGENTS 20 PERMEABLE PAVERS ENHANCE AN INLAND PORT FACILITY IN LOUISIANA

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23 KNOWLEDGE BASE ASCE ANNOUNCES NATIONAL PICP STANDARD 27 MAIN EVENTS

ADVERTISING DAN HARTZOG danH@llmpubs.com | 503-445-2229 RONNIE JACKO ronnie@llmpubs.com | 503-445-2234 DESIGN STEPHANIE PENDELL stephanie@llmpubs.com ISSN 1087-9862 The acceptance of advertising in Interlock Design magazine does not constitute or imply the endorsement or recommendation by ICPI or its members, staff, editors or the publishers of any product or service mentioned, referenced or advertised in the publication.

ICPI accepts no responsibility for any claims made in any advertisement. ICPI further reserves the right to refuse to accept any advertisement.

Canada Post Agreement No. 41567031 ©2018 Interlocking Concrete Pavement Institute. Visit our website at www.icpi.org.

interlockutor Change Agents

T David R. Smith

here are four things that change people: books read, people met, beauty, and pain. Sometimes two, three, or four of these converge on a person’s experience at the same time, and that often accelerates change, hopefully in a positive rather than a negative direction. What have you read that crystalized or changed your thinking, beliefs and behaviors? What people have you met that brought inspiration, direction, or just simple and salty advice that you

followed? What beauty have you seen in other people or provided it to others, as well as seen it in nature or in the built environment? What pain has wounded or purged you? Many of these change agents arrive when we least expect them, or when we are expecting a particular outcome and it turns into something else, and often outside of our control.

A great part of the segmental concrete paving industry is it creates beauty, intentional or not. In the early 2000s, Continues on page 3

Change agents: ports and patios

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the Port of Oakland chose 5 million sf of interlocking concrete pavement because a shipper wanted a durable pavement that could accept any type of heavy container handling equipment. Heavy means over eight times the wheel loads of highway trucks. But when you stand in this ocean of pavers covered with shipping containers, it still whispers an industrial beauty.

Segmental concrete pavement is often selected due to its beauty as well as its practicality. This is the case for winners of the Hardscape North America Project Awards presented in this issue. Beauty

Sometimes, designs are so strong that controlling your relation to it and the people there isn’t a priority. That can make the soul receptive to engage other people.

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is their calling card; their practicality justified the expense. The winners also affirm the top drawer technical capabilities of manufacturers and installation contractors.

What’s most interesting is that their beauty becomes a place for meeting people, getting to know folks or just being with family. For some projects, they are places to retreat and escape to read a book, even reading one that might change life’s trajectory for the better.

What’s even more interesting is the larger site context in which each project is found. Several clearly are discovered

by surprise by turning a corner and stepping or driving into a designed place.

Yes, de-signed places, meaning you don’t need signs or written instructions on how to use and enjoy it. You are not in control, the place you’re in is. Sometimes, designs are so strong that controlling your relation to it and the people there isn’t a priority. That can help make the soul receptive to engage other people, books, beauty and, yes, pain, all of which might yield an epiphany. On behalf of the contest winners, we are delighted to present places that can be such change agents.

 COVER STORY

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Concrete Pavers—Commercial Less

Creating Elegance at

EVERY SCALE

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he 11th annual 2018 Hardscape North America Project Awards received 155 submissions, exceeding last year’s count of 146. From as small as 746 sf up to 180,000 sf, the submissions improve each year from higher injections of creativity. Winners were recognized in 18 categories nominated by projects size and application. Materials include concrete pavers, clay brick, natural stone, porcelain, segmental concrete retaining walls, and combinations of these products. Due to space limitations and this magazine’s editorial emphasis, only the winners and honorable mentions are featured in the concrete paver categories. All of the winners can be viewed on www.flickr.com/photos/icpi/sets.

To help the judges evaluate submissions, entrants submit six photos with each demonstrating the following: • Innovative design using colors, shapes, textures, and patterns • Quality of construction and craftsmanship • Compatibility with related construction materials and systems • Construction innovation • Overall excellence The sixth photo can highlight any aspect of the project.

Entries require excellent photography that communicates the designer’s intent.

Successful photographic representations enhance the reader’s perception, and especially the contest judges’ perceptions.

When combined with superb, uncluttered design, such photography makes it easy for readers to vicariously enter and enjoy each. We hope you go there to witness the possibilities and enrich your imagination.

The contest is produced by the Interlocking Concrete Pavement Institute, and awards are endorsed by the National Concrete Masonry Association and the Brick Industry Association. The HNA Awards program is sponsored by ICPI members Belgard and Keystone Hardscapes.

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than 15,000 SF

16TH STREET CONNECTOR PARK AND PUMP STATION Location Virginia Beach, Virginia Contractor Paver Designs LLC, Omaha, Nebraska Manufacturers Techniseal & Eagle Bay Hardscapes (ICPI members) THE BEACH IS THAT-A-WAY Located on the Atlantic Ocean, this rehab project used sealer on existing and new concrete pavers to enliven a utility space and park between buildings. The result resurrects colors and visually ties the space into the Virginia Beach-owned, beachfront paver promenade.

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HONORABLE MENTION The Sevens— Camden Apartments Location Orlando, Florida Contractor UCC Group, Inc., Orlando, Florida Manufacturer Belgard (ICPI member) Designer David Hoppes, Dix-Hite + Partners WALKING THE PLANKS Multiple shapes and colors delight the view into this apartment entry using units from the Oldcastle Moduline Series.

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Concrete Pavers—Commercial More than 15,000 SF

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SOUTHLANDS MALL Location Aurora, Colorado Contractor Continental Hardscape Systems LLC, Thornton, Colorado (ICPI member) Manufacturer Keystone Hardscapes (ICPI member) Designer Chris Sutterfield, Studio Insite

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SENSE OF DIRECTION Some 180,000 sf of concrete pavers refresh and revitalize the Southlands outdoor mall, a premier shopping area. Deicer-resistant units with a surface sealer for extra protection helped insure long-term performance. The compass and fountain provide a “jumping” water feature for children to enjoy.

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HONORABLE MENTION Levy Park Location Houston, Texas Contractor B&D Contractors Inc., Houston, Texas (ICPI member) Manufacturer Keystone Hardscapes (ICPI member) Designer OJB Landscape Architects

CIRCLE-UP HERE Levy Park received a revitalization including 8,000 sf of concrete pavers that re-engaged the local community. The variegated and whimsical patterns convey a sense of spirited movement and fun. The transformation occurred with help from native landscaping, interactive water features, a dog park, garden, park pavilion, and children’s play area. A local resident’s endorsement: “This is hands down the most gorgeous and well-designed park I’ve ever seen. I fell in love the second I stepped foot into it.”

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Concrete Pavers—Residential Less than 3,000 SF

OLD TOWN OASIS Location Fort Collins, Colorado Contractor Lindgren Landscape, Fort Collins, Colorado (ICPI member) Manufacturer Belgard (ICPI member) Designer Tim Lindgren, Lindgren Landscape

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DRINKING FIRE WATER ICPI-certified personnel installed concrete pavers that complements the stonework. They also installed customized concrete slabs for the water feature and subsurface utilities. Precisely cut pavers joined each boulder and hardscape feature. Moreover, installation in this tight space included drainage appurtenances to remove runoff from the 100-year storm.

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HONORABLE MENTION Aviator Court Location De Pere, Wisconsin Contractor The Sharper Edge Landscaping, De Pere, Wisconsin (ICPI member) Manufacturer County Materials Corporation (ICPI member) Designer Paul Bowker ATTACHED LIVING This patio maximized available space to offer everything the homeowners desired in a raised outdoor living area— a place to relax, cook, enjoy a fire and unwind in a hot tub. The seat walls, fireplace and stairs use custom-cut bullnose pavers.

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Concrete Pavers—Residential More than 3,000 SF

TUMBLED VENETIAN— TRUCKEE Location El Dorado Hills, California Contractor LR Landscaping, Auburn, California (ICPI member)

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KNOWLEDGE COVER STORYBASE

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Manufacturer Keystone Hardscapes (ICPI member) Designer Tanna Johns

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SMOOTH OPERATOR The steep natural grade of this site in the Sierra Nevada foothills was mitigated through a significant backfill and a retaining wall. This delivered a subtle slope from the street to a flat grade driveway and a seamless paver transition from the entry gate to the inner courtyard.

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HONORABLE MENTION Atkinson Barn Location Dry Fork, Virginia Contractor Heath Landscaping, Chatham, Virginia (ICPI member) Manufacturer Eagle Bay Hardscapes (ICPI member) BARNS AND NOBLE The client wanted all materials to flow well, so rather than using sand to joints between the pavers and the natural stone, each paver was ground perfectly to fit next to the stone.

The effect created a seamless transition between the stones and concrete units.

HONORABLE MENTION Driveway, Entryway, and Airplane Pool Deck Location San Dimas, California Contractor Go Pavers, Studio City, California (ICPI member) Manufacturer Orco Block & Hardscape (ICPI member) Designer Aaron Barnes SMOOTH LANDING This retired pilot’s home received an ICPI certified installer using precise cutting of every edge stone, ensuring they assemble perfectly. The job included red, green, and white lights in the pavement, reminiscent of airplane lights to create the final touch.

The 3,700 sf project airplane propellers replicated on each circle on the front entryway.

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Concrete Pavers—Permeable Commercial/Residential

COMMUNITY FIRST Location Neenah, Wisconsin Contractor Aqua-Paving, Yorkville, Illinois (ICPI member) Manufacturer County Materials Corporation (ICPI member) Designer Ryan Bakke

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CREDIT WHERE CREDIT’S DUE A machine-installed, 31,000 sf parking lot for this credit union follows the curvature of the pond and outside perimeter of the building with each edge paver cut to fit. Mechanical installation allowed the parking lot to be completed in one week, which included a day and a half of grading and setting base aggregates.

If manually installed, paving might have taken about two months. The credit union wanted to communicate sustainability as a priority to its members.

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HONORABLE MENTION Greeney Residence Location Portland, Oregon Contractor Sequoia Stonescapes, Independence, Oregon (ICPI member) Manufacturer Keystone Hardscapes (ICPI member) Designer Drake’s 7 Dees Landscaping UPGRADING BELOW GRADE PAVEMENT This home rests at the lower end of a 200 ft long drive, 16 ft lower than the street entrance. Impervious, cast-in-place concrete was replaced with PICP to manage 80,700 gallons of rainwater the pavement receives annually. The PICP upgrade eliminated concerns over flooding in the home and garage. The 3,500 sf of pavement includes a courtyard and vehicle turnaround, all of which raised the property value.

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Vintage

FOURTEEN YEARS AND GOING STRONG Location Salinas, California Contractor Stowe Contracting, Inc. (ICPI member)

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Manufacturer Calstone (ICPI member) & Pacific Interlock Designer Walt Combs

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PATHS TO FLOWER This year’s contest offered a new entry category called Vintage Installation meaning any project category could be submitted with construction prior to 2008. Built in 2004, this 724 sf patio was installed by one of the owners of an ICPI-member paver installation company. Multiple birthdays, anniversaries and other celebrations occurred with virtually no pavement degradation. Now, if the patio furniture could last as long as the pavement…

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 FEATURE STORY

Sidewalk and Public Space Design Emphasized at

12th International Conference on Concrete Block Paving

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very three years, researchers, manufacturers, consultants, academics, and suppliers from around the world gather at the international conference on concrete block paving. The Korean Block Association hosted the October 2018 conference in Seoul. The event was co-sponsored by the Metropolitan Government of Seoul and the Korean Block Association. This amazing, very modern, safe city of 10 million people nestled next to North Korea, crowns a free, democratic nation to the south totaling 52 million people.

The Metropolitan Government has a special interest in concrete block paving because it is the standard pavement for sidewalks. There are some notable exceptions. Cut granite pavers are used in the downtown core around highrent buildings and old stone units grace historic palaces, gates, courtyards and temples.

Like Europe, there is a 2000-year tradition of using segmental paving in Korea. This tradition continues via the Sidewalk Improvement Division of the Seoul Metropolitan Government. An impressive opening keynote address was given by Jong Hyeon Ha with the Seoul City Hall Safety Management Bureau.

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The conference included a group dinner at 777 ft tall Seoul Tower located downtown on the top of Namsan mountain park that gave stunning 360° views of the city. In addition, conference presenters and members of the Small Element Pavement Technologists received a traditional Korean dinner and music hosted by the Metropolitan Government of Seoul.

The conference concluded with a technical/ historic tour of downtown Seoul demonstrating the City’s commitment to segmental paving with visits to monuments, gates and palaces reflecting a history of persistence and creativity.

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He demonstrated a continued tradition through a City policy called the Ten Commandments of Concrete Block Paving: 1. All sidewalk construction or repair projects must display a sign with the contractor’s name and the inspector’s name and contact information.

The downtown core boasts Cheonggyecheon Stream which formerly was a covered stormwater conveyance.

Opened in 2005 at a cost of $900 million, the now uncovered stream transformed 6.8 miles of the downtown core into a major recreation space while serving as storage for flood waters.

2. One strike-out policy: One project with weak or faulty construction by a contractor means that company is off the bidders list.

3. Ensure pedestrian safety at all times.

4. No sidewalk construction in winter.

5. Compensation is assessed from any entity that damages the sidewalk.

6. Citizens monitor and report sidewalk problem via a smartphone app—200,000 citizen reports are submitted annually.

7. Citizen reports via cell phones must include specific inconveniences.

8. Sidewalks are for pedestrians. The City removes cars parked on sidewalks.

9. The City maintains a concrete block paving bank with spare paving units.

10. Work with citizens by meeting regularly to discuss issues at the municipal district offices.

Yes, shipping pallets for concrete pavers (or anything else) can be repurposed into flower planters.

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Example of sidewalk concrete block paving ‘holding down’ balloons and paving at a downtown folk art museum garden.

Continued from page 18

In addition, there are Ten Commandments of Sidewalk Management which includes pavement, trees, utility poles, and street furniture: 1. The City will clean the sidewalks for use by pedestrians.

2. Adequate space will be provided on sidewalks for pedestrians.

3. Utility poles will be consolidated to reduce their number, as well as transformer boxes.

4. Reduce inconveniences especially lowering subway vents making them even with the sidewalk pavement.

5. Enforce no motorcycles on sidewalks.

6. The City will enforce removal of things that get delivered, stacked and left on sidewalks (usually blocking pedestrian traffic).

7. Keep up with repairs to sidewalks and street furniture.

8. Keep streets beautiful and use modern street furniture.

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9. Use a sidewalk management system to track condition and maintenance.

10. Work together with citizens and citizen groups to improve sidewalks.

Since 2013, the City also hosts a “Pavement Block EXPO” with several dozen exhibitors from Korea, US, Germany, and Italy. This exposition brings new ideas and products to the City Sidewalk Improvement Division, a agency that supports an guestimated 16,000 km or 10,000 miles of segmentally paved sidewalks, or something like 17 square miles.

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Cut stone paving surrounds many historic palaces, temples and gates.

This paving sets the context for continuing the modern version using manufactured concrete units.

Dave Hein, P. Eng., Principal Engineer with Applied Research Associates, Inc. presented a second keynote address entitled. “Evolution through Innovation: The Road to Success” that traced the evolution of segmental paving from its start several thousand years ago to the present. This fit well against the background of a 2,000year old culture with segmental paving continuing its use in sidewalks, public spaces and roads.

The conference attracted about 150 delegates from nine countries who were welcomed by Seoul’s Deputy Mayor. In addition, 52 domestic and overseas companies exhibited products.

Keynote speeches and most of the 38 technical papers were presented, all with simultaneous English-Korean translation. (The papers will be available on www.sept.org in 2019.) One address

by Professor Hyan Suk Shin, head of the Low Impact Research Center in Pusan, illustrated research testing and performance validation of permeable pavements as well as research progress in related LID technologies.

Backstage City: Besides sidewalks along main streets in concrete pavers, Seoul’s streets are interconnected by an enormous labyrinth of alleys in concrete pavers supporting thousands of shops and restaurants.

 FEATURE STORY

Permeable Pavers Enhance an Inland Port Facility in Louisiana

By Sheryl S. Jackson

The permeable interlocking concrete pavement at Port Manchac is designed to support heavy vehicles and shipping containers.

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wo factors are expanding ports Louisiana, about 40 miles northwest of New in the United States. The first was Orleans. The port is overseen by the South the addition of a third set of huge Tangipahoa Parish Port Commission. The locks in the Panama Canal in Canadian National Railroad’s north-south 2016. These allow passage of ships onemain rail line adjacent to the port’s property and-a-half times larger than the existing and easy access to I-55 with nearby direct locks. The second factor is the growth links to I-12, I-10, and I-59 make Port of e-commerce. This transformed the Manchac’s intermodal terminal a prime supply chain as customer expectations for inland location to store and transload bulk, faster delivery times moved retail logistics break bulk, neo-bulk and containerized from centralized to regional distribution shipments by barge, rail and truck. networks. In response, ports along the Gulf The 140-acre port commissioned some and Eastern United States have undergone significant renovations to upgrade its renovations to handle the increased facilities to handle increased business, says volume, and inland ports are expanding Mr. Dufresne. One of the new features is a to handle more throughput as well.

25,000 sf, paved ‘laydown’ area designed “Since the Panama Canal expansion, ports to accept heavy containers and vehicles. have seen a 10 to 15 percent increase in “We evaluated the use of concrete and container shipping, and inland ports are asphalt to pave the previously unpaved playing a critical role in moving those area, but I had seen permeable pavers in a goods,” says Patrick J. Dufresne, Executive similar use and liked its performance,” says Mr. Dufresne. “It can handle the weight of Director/CEO of Port Manchac in Akers,

the containers as well as the turns made by trucks without cracking like the other pavements.” An added advantage is the ease of replacing a section of pavers if there is damage versus the labor, time and cost of repairing or replacing concrete or asphalt. “We also have a very high water table and needed a material that could improve drainage,” he adds.

“The design included interlocking concrete pavers early in the process, but the client had seen another installation with permeable pavers,” says Ranjit Gujja P.E., project manager at AECOM. After evaluating the viability of permeable pavers in this application, the design was changed to incorporate them. “Permeable pavers were able to handle the weight and volume of traffic and addressed drainage issues in the area, he says. “They also saved Continues on page 21

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money that would be needed to install sewer pipes under a non-permeable paver system.” Although a drainage system was not needed under the paver system, drainpipes and an inlet were installed at the edges to direct excess water out of the subbase, he adds.

Geotextile was placed over the subgrade and 10 inches of ASTM No. 4 of compacted stone was placed as a subbase.

A 4-inch thick compacted, open-graded base of No. 57 stone served as the base for the bedding layer and the 3 1/8-inch thick concrete pavers with joints filled with permeable aggregate.

“The general contractor prepared the area and placed the subbase and base layers of stone, and then my crew screeded 2 inches of No. 8 stone as the

PROJECT CREDITS bedding material,” says Ivan Bond, owner of Design Pavers. “I was surprised that the total depth of the project was not deeper, but the site had been used for decades as a laydown area and the soil subgrade was very compact and stable.” Pavers used for the project were 4 7/8 inches wide and 9 3/4 inches long and were manually placed. “A herringbone pattern was used because it is recommended for vehicular applications because it is stronger than other patterns,” says Mr. Bond. Because the pavers did not come in manufactured and placed as a herringbone pattern on the pallets.

This is not the first permeable paver system installed by Mr. Bond, but it is his first in an industrial setting. “I install permeable pavers in commercial and

PROJECT LOCATION:

Port Manchac, Akers, Louisiana OWNER:

South Tangipahoa Parish Port Commission DESIGNER & PROJECT MANAGER:

Ranjit Gujja P.E., Project Manager, AECOM CONTRACTOR:

Ivan Bond, Design Pavers MANUFACTURER:

Keystone Hardscapes PHOTO CREDITS:

Ranjit Gujja, AECOM

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Casting the concrete curb edge restraints

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residential applications,” he explains. “I was a little apprehensive about an opengraded subbase and base supporting a permeable paver system under the port traffic, but it is working well,” he admits.

A concrete curb/edge restraint about 1 sf in cross section holds the paver system in place. This was installed by the general contractor, says Mr. Bond. The pavers were placed in less than three weeks with no surprises, he says. “Overall, the weather cooperated but we did have some rain,” he points out. “Of course, rain doesn’t slow the installation of a permeable system.”

Mr. Bond’s pride comes through when he says, “I am hearing more contractors and customers evaluate the use of an open-graded permeable paver system for commercial and industrial projects,”

he. “The Port Manchac project proves that permeable pavers work well in these settings.”

The Port Commission is also pleased with the results of the $250,000 paving project, says Mr. Dufresne. “There were no problems during installation and the

Port’s customers are happy that forklifts can more easily operate on the pavement rather than on aggregate that was previously used,” he says. “Now, we are looking for funds to double the size of the laydown area—with permeable pavers.”

The No. 2 subbase aggregate placement

Besides durability, deciding on 25,000 sf of PICP was due to the area receiving about 63 inches of rainfall annually. A herringbone pattern is being completed in this section of the PICP.

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KNOWLEDGE base ASCE Announces National PICP Standard

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he American Society of Civil Engineers (ASCE) Transportation and Development Institute announced the release of ASCE/ ANSI 68-18 Permeable Interlocking Concrete Pavement (PICP). Four years in the making, the standard covers hydrologic sizing and structural design of PICP as well as construction and maintenance guidelines. The intent of the standard is adoption in whole or part by provincial, state, and municipal road agencies as well as by stormwater agencies and green infrastructure managers. ASCE/ANSI 68-18 is a detailed

guide for civil and environmental engineers. It provides informative reading for environmental planners, landscape architects, and architects.

Chaired by David K. Hein, P. Eng., the standard was written by a committee of PICP experts from across the U.S. and Canada representing industry, consulting civil engineers, stormwater agencies and contractors. Mr. Hein notes that, “PICP is seeing increased used for parking lots, alleys and streets. The ASCE 68-18 standard provides a high level of design confidence in PICP performance drawn from research that determines pavement thicknesses.”

PICP can be reliably designed to accept some bus and truck traffic as shown here at the Chicago Museum of Science & Industry.

“PICP is seeing increased used for parking lots, alleys and streets. The ASCE 68-18 standard provides a high level of design confidence in PICP performance drawn from research that determines pavement thicknesses.”

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– David K. Hein, P. Eng.

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The 90-page standard covers: yy Definitions of common permeable pavement terms yy Structural design to accommodate vehicular use yy Hydrologic design to accommodate water storage and infiltration yy Construction and inspection procedures yy Guide construction specifications for US and Canadian projects yy Maintenance procedures

conformance to sustainable rating systems for roads and transportation infrastructure.

ICPI Chair Kendall Anderegg emphasized the importance of ASCE developing a national PICP standard. “We partnered with ASCE because they are our clients.

We want them to tell us what they need in this standard to design with confidence.

This process behind creating this standard resonates with the wider civil engineering profession.�

The impressive Table of Contents demonstrates application of the stateof-the-art and science behind PICP. The well-illustrated standard includes 28 figures and 15 tables plus text presented in metric and U.S. customary units.

PICP may help achieve compliance with many national, provincial, state and local regulations, as well as transportation agency requirements for stormwater Preface management. Non-regulatory drivers include economics which can make PICP Acknowledgments a lower-cost alternative to conventional 1. General drainage, and project owner preferences for 1.1 Scope

1.2 Referenced Standards 1.3 Variations from This Standard 1.4 Engineer Required

2. Definitions 2.1 General 2.2 Terms

3. Preliminary Information for the Design of Permeable Pavements 3.1 Project Suitability 3.2 Primary PICP Design Options 3.3 PICP System Components

4. Permeable Pavement Design 4.1 General 4.2 Structural Analysis

4.2.1 Traffic Loads

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4.2.3 Expansive Soils and Other Considerations

4.2.4 Aggregate Base and/or Subbase

4.2.5 Other Aggregate Base and Subbase Considerations

4.2.6 Concrete Paver, Aggregate Jointing, and Bedding Properties

4.2.7 Concrete Paver Laying Patterns

4.2.8 Structural Behavior of the Aggregate Subbase

4.2.9 Soil Subgrade Characterization and Behavior

4.2.10 Input Parameters for Mechanistic-Empirical Design of PICP

4.2.11 Subbase Thickness Design Tables

4.2.12 Structural Design Life

4.2.13 Geosynthetics

4.2.14 Edge Restraints

4.2.15 Pedestrian-Only Use

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4.3 Hydrologic Analysis

4.3.1 Overview of the Hydrologic System

4.3.2 Selection of the PICP System Type

4.3.3 Water Balance Calculations

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4.4 Balancing Structural and Hydrologic Designs

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4.5 Additional Design Considerations

4.5.1 Subgrade Scarification

4.5.2 Slopes

4.5.3 Underground Utility Treatment

4.5.4 Monitoring Well

4.5.5 Adjacent Buildings and Pavement Systems

4.6 Water Quality Benefits

5. Construction Guidelines 5.1 Construction Steps 5.2 Preconstruction Meeting 5.3 Erosion and Sediment Control

5.3.1 Sediment Management during Construction

5.4 Construction Inspection Checklist

6. Maintenance Guidelines 6.1 Pavement Maintenance 6.2 Inspection Activities 6.3 Infiltration Testing 6.4 Routine Maintenance 6.5 Remedial Maintenance 6.6 Winter Maintenance Appendix A. Design Examples Appendix B-1. Guide Construction Specifications, Permeable Interlocking Concrete Pavement, U.S. Version Appendix B-2. Guide Construction Specifications, Permeable Interlocking Concrete Pavement, Canadian Version Appendix C. Examples of Orifice and Common Weir Equations Appendix D. PICP Structural Design Using AASHTO 1993 Guide for Design of Pavement Structures Appendix E. Approximate Correlation between Permeability and Unified Soil Classification References Index The PICP standard sells on ASCE’s publications website for $110 or $88 to ASCE members. The document is available in print and pdf formats.

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the MAIN events DATE EVENT

LOCATION

2019

JAN

8–9

Concrete Paver Installer Course—Belgard

Cincinnati, OH

9–10

Concrete Paver Installer Course—Indiana Green Expo

Indianapolis, IN

11–12

Concrete Paver Installer Course—Montana Nursery and Landscape Association

Billings, MT

14

PICP Specialist Course—North Carolina Nursery and Landscape Association

Greensboro, NC

14–15

Concrete Paver Installer Course—North Carolina Nursery and Landscape Association

Greensboro, NC

22–23

Concrete Paver Installer Course (during World of Concrete)—ICPI

Las Vegas, NV

23–24

Concrete Paver Installer Course—Nicolock

Frederick, MD

23–24

Concrete Paver Installer Course—Watkins Concrete Block

Omaha, NE

6–7

Concrete Paver Installer Course—Belgard

Atlantic City, NJ

19–20

Concrete Paver Installer Course—Nicolock

Mahwah, NJ

3–6

ICPI 25th Annual Meeting (2019)

Charleston, SC

4–5

Concrete Paver Installer Course—Anchor Block

Minnetonka, MN

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PICP Specialist Course—Alliance for the Chesapeake Bay

Washington, DC

20–21

Concrete Paver Installer Course—Winnipeg Construction Association

Winnipeg, MB

1–7

ICPI & NCMA Pre-Bauma Technical Tour

Dublin, Ireland

8–14

Bauma Trade Show

Munich, Germany

AUG

26–29

2019 ICPI Summer Meeting

Minneapolis, MN

OCT

16–18

2019 Hardscape North America Trade Show

Louisville, KY

FEB

MAR

interloc

esign®

APR

27

InterlockDesign.org

WEBINARS DATE

WEBINAR TOPIC/SPEAKER

TIME

January 10

Super-Size Your Sales!—Gary Ross, Director of Sales, Training & Coaching—Oldcastle APG

1 pm EST

January 22

How to Successfully Work with Your Inspector—

1 pm EST

Bryan Horr, Manager of Technical Development and Market Promotion—ICPI March 8

PICP Design, Construction & Maintenance—Dave Hein, P.Eng.

11:30–1 pm EST

Visit www.asce.org for registration information.

ADVERTISERS IN THIS ISSUE BP Pro..............Inside Front Cover, 14

KOBRA Molds, LLC.......................... 17

Slab Innovation, Inc........................... 26

Browning Enterprises, Inc./ Alabama Pallets.....................................8

Pave Tool Innovators............................8

Solomon Colors, Inc.......................... 26

Pavers by Ideal................................... 14

Techniseal...............................................4

Rampf Molds Industries, Inc............ 25

Topwerk America Ltd........................ 10

Columbia Machine, Inc..................... 28 KBH Maschinenbau.......................... 25 SEK, Inc............................................... 24

28

Check out ICPI’s new free continuing education programs

Presented by AEC Daily on https://aecdai.ly/icpi

Approved by AIA and ASLA for continuing education credits.