
Standard proctor and modified proctor | Eng-Tips
Oct 8, 2015 · Modified Proctor (also called the "hernia" test) Engineeerd fill that will be used to support structures (under mat or spread foundations) Roadway subbase and base course I've …
Standard or Modified Proctor Density? | Eng-Tips
Feb 3, 2016 · Here's how I understand it: Both the standard proctor test and modified proctor are means of checking the compaction. I believe that before WWII there was only the proctor test. …
ASTM D698 vs D1557 | Eng-Tips
Nov 24, 2002 · Did ASTM renumber these test specifications? I seem to remember different ASTM numbers for Standard and Modified Proctor tests.
Modified Proctor compaction test | Eng-Tips
Mar 12, 2016 · The laboratory test (Proctor) is then used as the basis of comparison to field density tests or in-place density tests done at the site to determine the percent compaction for …
Converting Modified to Standard Proctor | Eng-Tips
Jul 29, 2009 · Does anyone know of a conversion from modified proctor to standard proctor for both dry density and moisture? I usually assume 90 modified = 95 standard, but I need …
Why 95% Compaction | Eng-Tips
Jun 13, 2003 · The "95%" spec (usually specified when speaking in terms of the modified Proctor test) is somewhat arbitrary. It has been proven to work in most common situations where an …
Questionable Modified Proctor test | Eng-Tips
Mar 28, 2018 · 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 …
ASTM D-698 or D-1556 Proctor Method | Eng-Tips
Does Proctor ASTM D-698 soil compaction call for 95% dry density or is that Proctor ASTM D-1156? Thank you.
Proctor Testing Methods | Eng-Tips
Oct 6, 2010 · Modified proctor applies more energy to the soil specimen than standard proctor does. The amount of energy applied in the modified proctor test is generally more …
Is anything less than 95% standard proctor acceptable?
Sep 10, 2013 · Assuming a well graded mixture of sand and gravel with adequate water, than 95% of modified proctor is not difficult to obtain and will improve the long term performance of …