ASTM D2488
ASTM D2488
(OP)
Can you identify a soil from a picture by ASTM D 2488? And if so where does it state it in the Spec. I have tried looking for it and can not seem to find any.
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RE: ASTM D2488
f-d
¡papá gordo ain't no madre flaca!
RE: ASTM D2488
"1.6 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project's many unique aspects. The word "Standard" in the title of this document means only that the document has been approved through the ASTM consensus process."
for me personally, a picture might give me a clue as to the specific geology and then i may be able to conclude "yep, that looks like _________ which is predominantly an ML". that should be backed up with some sort of analysis and/or testing. also, local knowledge may be what the engineer is relying...again, such an assumption should be confirmed before you get off neck deep in the design.
RE: ASTM D2488
To convert the field information to universally accepted vernacular, I would agree the field geologist (or geotechnical engineer) should assign representative samples for classification via D-2487. Then it's just a simple matter of converting all of the slippery gray mud descriptions to fat clay and all the easy to crack clays to sandy silt.
f-d
¡papá gordo ain't no madre flaca!
RE: ASTM D2488
There is an old saying "When you take 50 geologist out to a site you get 51 different interpretations."