GSSI PaveScan Mix Design Module

10421 Guilford Road Jessup, MD 20794 301/725-7394 Fax: 301/725-7361 38420 Sussex Highway Delmar, DE 19940 302/846-3033 Fax: 302/846-0763 6918 Wellington Rd. Manassas, VA 20109 703/257-2381 Fax: 703/257-2383

450 E. Church Road King of Prussia, PA 19406 610/279-5200 Fax: 610/279-6366

ELLIOTT & FRANTZ, INC.

WWW.ELLIOTTFRANTZ.COM

GSSI Highlights PaveScan for Asphalt Density Assessment

GSSI, a manufacturer of ground penetrating radar (GPR) equipment, highlights the PaveScan RDM 2.0 and PaveScan Mix Design Module (MDM) for asphalt density assessment.

Using PaveScan MDM and RDM gives paving contractors a comprehensive and accurate view into pavement quality without the expense, risk and errors from spot coring. More importantly, reducing the need to core exposes fewer workers to the dangers of work zones.

PaveScan RDM is ideal for uncovering problems that occur during the paving process, including poor uniformity and significant variations in density. By avoiding these problems, PaveScan RDM helps avoid such premature failures as road raveling, cracking, and deterioration along joints, according to the manufacturer.

This system automatically measures the dielectric value to identify anomalies in realtime. In addition, the dielectric values can be used as a means to correlate percent voids and density in new pavement. The innovative technology enables users to obtain critical density data for QA/QC of new pavements. Unlike other options, like nuclear density gauges or radioactive alternatives, PaveScan does not result in any site hazards or require closing off work areas.

Seamlessly integrating with GPS systems, PaveScan features a flexible, modular design that facilitates easy and efficient operation and data collection. It is offered as a single sensor or a three-sensor cart based configuration.

PaveScan MDM transforms the RDM into a powerful new quality control tool for asphalt density assessment. It is sensitive to subtle changes in aggregate, mix, and moisture, and can be used to immediately alert paving contractors to inadvertent changes in the aggregate mix. Users can compare daily samples against approved mix designs to detect any deviations and fix problems before the mix is deployed in the field. One five-minute lab test enables users to accurately reveal problems before any need for silo dumps or other costly remediation. PaveScan MDM users also can create a digital library of mix designs. PaveScan MDM provides a calibration curve that can be used to accurately show density variability within the asphalt mat. Such a precise degree of process control ensures that all bridge decks and longitudinal joints can be rolled properly. By helping to avoid premature road failures such as raveling, cracking and deterioration along poorly compacted joints, PaveScan technology builds better quality longer lasting roads, according to the manufacturer. For more information on PaveScan RDM visit https://www.geophysical.com/products/pavescan-rdm. For more information on PaveScan MDM, visit https://www.geophysical.com/productslite/pavescan-mdm. 

METRO from page 64

our newest Caterpillar paver. It is ideally sized for this project. We are typically paving in 13-foot to 16-foot passes. The parking lot has a lot of landscape islands in it. This size paver allows us to have a lot of maneuverability with a minimal number of joints.

“The Caterpillar rollers are very comfortable for our operators, offer great visibility and joystick operation, which is our operators’ steering method of choice.”

Brian Cox, Metro Paving’s primary paving operator and supervisor, has worked with Kellerman for 22 years. Along with Cox and the veteran team is Frank Lucatuorto Jr., future general superintendent. Absorbing all of the newest technology and implementing it on a daily basis.

“I rely heavily on them for their input, and they are big fans of the Caterpillar equipment,” Kellerman said.

“It’s not just the quality of the equipment that keeps me coming back to Caterpillar and H.O. Penn Machinery. It’s the support they give me after the sale.

“We go to extremes to keep our machines well-maintained, but no matter how good your maintenance program is there are times that you need parts and service. H.O. Penn’s parts availability is excellent. Jim Smith, our sales rep with H.O. Penn, is also there to help us through any tricky situations, but in addition to that H.O. Penn Machinery also has a paving specialist, Marty Callahan, who is available for technical support.”

A Caterpillar paver receives a load of asphalt from one of Metro Paving’s dump trucks.

(All photographs in this article are Copyright 2022 Construction Equipment Guide. All Rights Reserved.)  CEG

Brian Cox, primary operator and supervisor, has been with Metro Paving since its beginning.