Proctor testing of 3/4" clean stone
Proctor testing of 3/4" clean stone
(OP)
Does anyone have a clear idea on what standard to use for performing a proctor on 3/4" clean stone to be used in soil replacement? I've heard that the material is to be crushed, etc. Any advice will be greatly appreciated.
Joe
Joe





RE: Proctor testing of 3/4" clean stone
RE: Proctor testing of 3/4" clean stone
D4253-93 Standard Test Methods for Maximum Index Density and Unit Weight of Soils Using a Vibratory Table
D4254-91 Standard Test Method for Minimum Index Density and Unit Weight of Soils and Calculation of Relative Density
I've used this for testing of sand and gravel filter drain layers.
RE: Proctor testing of 3/4" clean stone
RE: Proctor testing of 3/4" clean stone
Merry Xmas to all those celebrating it! Have a slice of turkey (or ham, or ...) for me!
RE: Proctor testing of 3/4" clean stone
RE: Proctor testing of 3/4" clean stone
RE: Proctor testing of 3/4" clean stone
RE: Proctor testing of 3/4" clean stone
RE: Proctor testing of 3/4" clean stone
RE: Proctor testing of 3/4" clean stone
I did a few maximum vibrated density test for the similiar materials by the dry method, and the results turned out to be quite low(the wet method may yield higher density). There was no obvious change in density after vibration.
The "maximum dry density" by the proctor method was higher than the vibrated density, and it made more sense in that the stone in field after being dumped demanded vibration or compaction to reach a certain percentage of this "MDD".
I agree with BigH in that the nuke can not be used to measure the density of the clean stone accurately due to the air existing in the voids. However, by practice, I found that it can respond to the degree of compaction of the stone, i.e., the more the stone is compacted, the higher the density is.
RE: Proctor testing of 3/4" clean stone
BigH....can you imagine trying to use the rubber balloon these days with costs being what they are? You'd have to charge $40 (US) per test! Can do a bunch of nukes in the same time!
RE: Proctor testing of 3/4" clean stone