lab dry density test
lab dry density test
(OP)
Is there a method to determine the dry density of a split spoon sample without resorting to the use of mercury or by measuring the dimensions? I don't like using mercury (I am highly accident prone), and some soils don't lend themselves well to cutting into nice even dimensions (ie: sandy lean clays with gravel).
Any suggestions would be highly appreciated.
Any suggestions would be highly appreciated.





RE: lab dry density test
The best way to test something is to squeeze it, slowly, until it breaks!
RE: lab dry density test
RE: lab dry density test
Rjeffery, thanks, I have read the method for shrinkage limits. I will look into the paraphin method as a substitution for determining density. As the most junior member here the decision won't be mine, but if there is an equivalent method that is acceptable, then hopefully I can get this changed.
RE: lab dry density test
People have figured out ways of getting pretty much undisturbed samples from just about any type of soil. Like most things it is just a matter of time and money.
RE: lab dry density test
RE: lab dry density test
May not be able to get much sample from the till, but then again probably don't need much in the way of a sample of the till.
Based on your ealier post, I assume that you have not able to get samples of the upper clays. This may have more to do with the driller than with the soil. Are you haveing trouble pushing the tube or getting recovery?
RE: lab dry density test
If the soil is too dense for Shelby tube sampling, it's overconsolidated. If the natural moisture content is substantially lower than the liquid limit, it's overconsolidated. If the soil is granular, consolidation characteristics are not important (but soil modulus is). If all you can get for a sample is SPT owing to in-situ density/consistency, you can likely just evaluate the soil's response to loading using Es with correlation to SPT N-value.
You can also use a dilatometer. . .
f-d
¡papá gordo ain't no madre flaca!