How to read a nuclear density test report (ASTM D6938)
What each column on the lab or field technician report means, how percent compaction is calculated, and the checks that catch most paperwork problems before they reach closeout.
Proctor test, MDD and OMC explained
A project manager’s guide to the laboratory reference behind every field compaction result: what the curve shows, why two Proctors differ, and why using the wrong one changes your pass rate.
Tracking failed compaction tests and retests before the next lift
A failed test is normal. A failed test with no passing retest on file is what holds up a progress payment or closeout package. Here is a simple way to keep them from slipping.