What is compaction test?
Compaction test is to determine the relationship between water content and dry unit weight of soils.
2.How to do a compaction test?
By compacting the soil in 4-or6-in. diameter mold with a 5.5 lbf rammer dropped from a height of 12-in. producing a compaction effort of 12,400 ft-lbf/ft3.
3.Why do we call a standard compaction test is “Standard Proctor test”
The compaction test is accepted and proposed by R.R.Proctor.
4.What is the gradation of Method A
This method applies to soil that 25% or less by mass is retained on the No. 4(4.75-mm.) sieve.
5.What is the gradation of Method B?
This method applies to soils that 25% or less by mass is retained on the No. 3/8-in. (9.5-mm.) sieve.
6.What is the gradation of Method C ?
This method applies to soil that 30% or less by massis retained on the on the ¾-in. (19.0-mm.) sieve