Compaction Specification for Use of Recycled Concrete as Structural Fill (1999)

Summary:

Recycled concrete can be used as a structural fill material and can cost 20 to 30 % less than natural aggregate. On-site quality control of the compaction level is important during placement of structural fill and is typically verified by measuring in-situ moisture and density.

Modifications of this conventional aggregate testing procedure were tested for potential use in compaction specification of recycled concrete aggregate. Test results indicate that fill control using moisture content correlation curves is a more promising technique than fill control using wet density.