Pavement debris as engineering fill
Pavement debris as engineering fill
(OP)
My doubt is simple. Can pavement debris be used as engineering fill even it classifies A-2-4? I mean, does this material develop the same stregth as an A-4 when compacted to more than 95% Modified Proctor?





RE: Pavement debris as engineering fill
RE: Pavement debris as engineering fill
1. What to do with several thousand cut-offs from 10" square concrete piling?
2. How to find additional suitable material to fill up an existing borrow pit so that an above-ground industrial ash disposal pond could be constructed on the site?
With our Geotech's blessing, we had the pile cutoffs (as-is) put in the borrow pit , more or less in layers, surrounded by suitable soil. This was in a seismic area, too.
www.SlideRuleEra.net
RE: Pavement debris as engineering fill
RE: Pavement debris as engineering fill
RE: Pavement debris as engineering fill
RE: Pavement debris as engineering fill
In general, for light loads (shallow foundations and parking areas) we usually recommend the crushed/recycled concrete debris be crushed to attain a well-graded mix with maximum particle size no larger than 2 inches. When then placed in 8 to 12 inche lifts and compacted with a large vibratory roller, it generally has high density and strength values.
Testing the fill with a nuclear gauge is usually not accurate. We typically observe construction, note the amount of compaction effort and check to see how it holds up under fully loaded construction equipment.