The mold volume was 2131.1 cubic cm or 130 cubic inch. Done to ASTM D1557-12 and procedure C was used. Didnt see what if any gravel correction on the data sheet. Dont have the calibration of the Nuc readily available but when they were doing compaction with the prior testing densities were in...
Its structural fill gravel with sand and some silt present. Previous and current modified proctor tests showed standard bell curves no double dips. 90% passing 2" sieve, 82% passing 1.5", 66% passing 1", 44% passing No 4, 11.5% passing the 200 sieve. LL was 28 and PL was 21 with a PI of 7...
I had a contractor using a backfill material that was tested using the modified proctor method yielding an optimum water content of 6.8% and max dry unit weight of 21.28kN/m3. They recently "retested" the backfill material getting a new corrected wc of 10.7% and max dry unit weight of 19.94...
