Foamed Glass Aggregate Lightweight Fill Over Compressible Soils

Theresa Andrejack Loux, Archie Filshill, Zepeng Zhang

In the proceedings of: GeoSt. John's 2019: 72nd Canadian Geotechnical Conference

Session: Sustainable Geotechnics

ABSTRACT: Ultra-lightweight foamed glass aggregate (UL-FGA) may now be considered as a lightweight and insulating fill material for use in the construction of retaining structures, embankments, bridge abutments, and foundation slabs in North America. This granular material has dry bulk densities ranging from 130 240 kg/m3 (8 15 lb/ft3) and a closed cell structure which provides good insulation properties and minimal water absorption. UL-FGA is made from 100% recycled glass and is a sustainable, closed-loop product that has a favorable energy footprint when compared to other lightweight fill options. This paper covers the history and development of foamed glass aggregate and the physical and engineering properties of the material that are needed for design. Additionally, three projects where UL-FGA has been used over soft, compressible soils are described.

RÉSUMÉ: L'agrégat de verre expansé ultra-léger (UL-FGA) peut maintenant être considéré comme un matériau de remplissage léger et isolant pour la construction de structures de soutènement, de digues, de culées de ponts et de dalles de fondation en Amérique du Nord. Ce matériau granulaire a des densités apparentes sèches allant de 130 240 kg/m3 (8 à 15 lb/ft3) et une structure à alvéoles -FGA est , en boucle fermée qui présente une empreinte énergétique favorable par rapport aux autres options de remblais légers. des agrégats de verre expansé et. les propriétés physiques et techniques du matériau essentielles à la conception. En outre, trois projets où UL-FGA a été utilisé sur des sols mous et compressibles sont présentés.

Access this article:
Canadian Geotechnical Society members can access to this article, along with all other Canadian Geotechnical Conference proceedings, in the Member Area. Conference proceedings are also available in many libraries.

Cite this article:
Theresa Andrejack Loux; Archie Filshill; Zepeng Zhang (2019) Foamed Glass Aggregate Lightweight Fill Over Compressible Soils in GEO2019. Ottawa, Ontario: Canadian Geotechnical Society.

@article{Geo2019Paper467,author = Theresa Andrejack Loux; Archie Filshill; Zepeng Zhang,title = Foamed Glass Aggregate Lightweight Fill Over Compressible Soils ,year = 2019}