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for the free drainage sand and gravel no need for the compaction test. standard proctor test for the soil testing not for the gravel.
I agree with MR WOLF KLAAS & MOHMED.
for answer this question using standard proctor test ,modified proctor test .
That depends on the type of sand , as stated above you need to do a so called Proctor test to deteremine this
Great answer from Mr. Wolf and all Experts. Thanks for participation.
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