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ASCE DVGI - Compressibility, In-Place Density, and Shear Strength of UL-FGA (1 PDH)

Tuesday, September 17, 2019, 5:30 PM until 8:30 PM
Valley Forge Casino
Parkview Ballroom
1160 First Avenue
King of Prussia, PA  19406
Affiliate Group Training
Registration is required
Payment In Full In Advance Only
TOPIC: Compressibility, In-Place Density, and Shear Strength of UL-FGA 
SPEAKER:  Michael McGuire, Ph.D., P.E., Dept. of Civil & Environmental Eng.,  
 Lafayette College, Easton, PA 
DATE: Tuesday, September 17, 2019 
LOCATION: Valley Forge Casino, Parkview Ballroom, 1160 First Avenue, King of Prussia, PA 
TIME: Dinner Meeting: 5:30 PM, Social Hour; 6:30 PM, Dinner; 7:15 PM, Presentation 
***Register and Credit Card Payment Online at *** 
Ultra-lightweight foamed glass aggregate (UL-FGA) is a closed-cell material made from 100% 
recycled glass using a dry foaming process with a silicon carbide foaming agent.  UL-FGA has a 
bulk dry unit weight of approximately 15 pcf and a typical compacted dry unit weight of 20 pcf. 
The high intra-particle porosity of UL-FGA and high particle surface roughness contribute to a 
material behavior that is distinct from conventional fill materials. Dr. Michael McGuire (Lafayette 
College) and Dr. Daniel VandenBerge (Tennessee Tech) are currently conducting research with 
the support of AeroAggregates, LLC, to improve the understanding of the compressibility, in-place
density, and shear strength of UL-FGA. This presentation focuses on two works-in-progress: 
1) field-scale compaction experiments using terrestrial lidar to observe changes in fill volume in 
response to compactor passes and 2) incremental one-dimensional compression tests using 12-inch
diameter specimens with pre- and post-test particle size analysis. Preliminary findings from 
these experiments will be shared and discussed during the presentation as well as plans for 
additional testing. 
Dr. Mike McGuire is an Assistant Professor in the Department of Civil and Environmental 
Engineering at Lafayette College. He teaches courses in geotechnical engineering covering 
introductory topics, foundation design, wall design, slope stability, and ground improvement. He 
also teaches courses on sustainability and engineering design. His research interests include 
column-supported embankments, shear strength characterization, and remote sensing. Mike is 
originally from Media, Pennsylvania; receiving his BS degree in civil engineering from the 
University of Pennsylvania, and his MS and Ph.D. degrees from Virginia Tech. Mike is a registered 
Professional Engineer in Virginia and is active in service to the Geo-Institute through participation 
in the Geosynthetics Technical Committee and Student Participation Committee. 
While web registration and credit card payment at is preferable, you may 
register for the dinner meeting by faxing or emailing the form attached to Jim Beideman at 
610-594-2743 or (Voice: 610-594-1444 x109).  Send check, payable 
to DVGI, to Jim Beideman, Kleinfelder, Inc., 180 Sheree Boulevard, Suite 3800, Exton, PA 19341 
by Thursday, September 12th, 2019 to confirm your reservation for the dinner.