Links
Low density cellular concrete application case studies
https://aerixindustries.com/featured-case-studies/
throop lightweight fill
http://www.cellularconcrete.com/
EPS Geofoam Consortium
http://www.civil.utah.edu/~bartlett/Geofoam/
ach foam technologies
https://www.achfoam.com/Geofoam.aspx