Recent content by jharm

Is there a particular ASTM that you know of? I'll have to sub it out to a specialized firm and would like to provide them with such. TIA

I suspect that a soil from a project has been soil cemented during pad construction. Is there any way to determine the presence of cement in soils?

We have made a recommendation for 3-5% cement treating of the uppermost 12-inches of soil to underly pavement on a newly constructed road. Local Agencies require we verify a CBR of 7 for the material. Hence, we'll be determining the m-d curves using ASTM D558. However, as I undertand it, it...

We are on a site where unsuitable soils are to be removed up to 3 or 4 feet below planned bottom of footing (BOF). Flowable fill (no air, 300-500 psi) can be used to re-establish original BOF. Can anyone tell me the recommeded length of curing of the flowable fill prior to normal-wt concrete...

I'm sorry. Misunderstood the ? WD = 120.9; DD(calculated) = 102.2; MC = 18.3% Thx

Thanks. The one-point yielded a 104.7 @ 19.2% Gravel is negligable.

I have a situation. I have been testing for 2-days using a VTM-12 (Virginia Test Method) One Point Proctor values of 104.7 lb/cu.ft @19.2 OMC. The VTM-12 test uses Standard effort. For 2 days I have passed compaction in a green area requiring 85% of Standard Proctor. My lab tech...