Vane shear testing in Peat
Vane shear testing in Peat
(OP)
Anybody know the definitive correction factor to apply to the shear vane test when performed in peat?
The "Muskeg Engineering Handbook", 1969, gives a calculation which results in a value only 25% of the value given in ASTM D 2573-01. Is this to account for the overestimation from the test in peat, or is it just an old, outdated formula?
Also, anybody know of propper correction factors for different sized vanes?
The "Muskeg Engineering Handbook", 1969, gives a calculation which results in a value only 25% of the value given in ASTM D 2573-01. Is this to account for the overestimation from the test in peat, or is it just an old, outdated formula?
Also, anybody know of propper correction factors for different sized vanes?





RE: Vane shear testing in Peat
RE: Vane shear testing in Peat
The shear vane does work quite nicely in the organic silts which typically underlye peat deposits.
coneboy
RE: Vane shear testing in Peat
Recently spent/wasted two whole days grappling with shear vanes in peat and most, if not all of my results were 'interestingly' high.
In my opinion, the time spent trying to get half-decent results from this process far outweighs any benefits gained from it.
Good luck though!
RE: Vane shear testing in Peat
Zdinak
RE: Vane shear testing in Peat
RE: Vane shear testing in Peat
RE: Vane shear testing in Peat