Granular Fill
This information reflects our best understanding of product composition in 2015, with the exception of the following components that have since had their composition updated: Additional Constituents of Processed Slag (updated 2022), Trace Elements in Unprocessed FGD Gypsum (updated 2023).
Granular fill provides support for a concrete pour. A mix of course and fine aggregates, the fill is placed under or on top of a vapor retarding membrane before being compacted. Granular fill is specified based on the percentage of aggregates...
Granular fill provides support for a concrete pour. A mix of course and fine aggregates, the fill is placed under or on top of a vapor retarding membrane before being compacted. Granular fill is specified based on the percentage of aggregates classified as course or fine based on size, rather than by material. Aggregates can be mined from virgin sources, or recovered from the waste stream. In California, both reclaimed concrete and asphalt are used in granular fill. Because the precise composition will vary based on environmental and geographic conditions, this CP assumes that both virgin and reclaimed aggregates are used, with equal portions of Crushed Stone, Gravel, Sand, Blast Furnace Slag, Reclaimed Concrete, and Reclaimed Asphalt.