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Exploring Novel Lightweight Backfills for Geotechnical Structures — NSF Award to University of California-San Diego (CA, $500,000)

This project supports research that looks to build upon concepts from aerospace composites engineering to create new geo-composites that combine geosynthetics and lightweight backfill materials with contrasting stiffnesses (lightweight cellular concrete, LCC and tire derived aggregate, TDA) in different geometric archi

Award titleExploring Novel Lightweight Backfills for Geotechnical Structures
Award ID2349833
AwardeeUniversity of California-San Diego
CityLA JOLLA
StateCA
Amount obligated$500,000
Principal investigatorJohn McCartney
ProgramECI-Engineering for Civil Infr
Start date07/01/2025
AbstractThis project supports research that looks to build upon concepts from aerospace composites engineering to create new geo-composites that combine geosynthetics and lightweight backfill materials with contrasting stiffnesses (lightweight cellular concrete, LCC and tire derived aggregate, TDA) in different geometric architectures with characteristics designed to reach desired objectives. Retaining walls have been constructed recently with TDA (a ductile recycled material that has high shear strengt
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