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ASTM C 295 "Standard Guide for Petrographic Examination of Aggregates for Concrete"
Coarse Aggregate - 5 gallon bucket
Fine Aggregate - 5 pounds
Sampling should follow the requirements of Practice D 75, as described in C 295. Information on the location from which the sample was taken, i.e. the geology of the site, and other pertinent data should be submitted with the sample.
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