Soil Density With Just a Roller
Soil Density With Just a Roller
(OP)
When I received my WAQTC qualification in the class they had mentioned you could find the proctor with your nuke by making 10 passes over a certain square footage is this true? I am waiting for my lab to show up so I can pound a proctor but the super is curious now about the density of the borrow.
Thanks,
/cs
Thanks,
/cs





RE: Soil Density With Just a Roller
this is only a field approximation however, it may or may not match your laboratory proctor.
RE: Soil Density With Just a Roller
RE: Soil Density With Just a Roller
That said, I disagree with eekgec. Rolling with a specific roller at a given water content until the density no longer increases will give you a maximum density. If you changed the water content or the size of the roller, you would get a different maximum dinsity. It is very unlikely that either of these maximums will be the maximum as determined by either the standard or modified Proctor test.
If you really wanted to determine the maximum Proctor density, for either the standard or modified test, you would need to match the roller energy to that used by the specific test method. Then you would need to varry the moisture content while applying that energy.
In other words, wait on the lab test.
RE: Soil Density With Just a Roller
¡papá gordo ain't no madre flaca!
RE: Soil Density With Just a Roller
What you are doing is combining a rolling procedure with density testing, but you'll never know what you've actually achieved with respect to what it could or should be.
You'll be using a piece of expensive equipment and the labor of several people, the time to do the density testing, the equipment to do the density testing....all compared to $150 lab test that will give you the proper comparison answer, not some half-assed guess.
RE: Soil Density With Just a Roller
RE: Soil Density With Just a Roller
RE: Soil Density With Just a Roller
RE: Soil Density With Just a Roller
What you are describing will not generate a Proctor curve. It will generate a moisture / density curve, but not all moisture / density curves are Proctor curves.
A Proctor requires a specific amount of energy be applied to compact the sample in a specified maner. ONLY by doing that can you generate a Proector cureve for a material. There are two Proctor mehtods and they are different in the amount of energy used to compact the material.
Also note that Proctor should be capitalized since the test methods are named for a person.
RE: Soil Density With Just a Roller