AASHTO T21 – Standard Method of Test for Organic Impurities in Fine Aggregates for Concrete
This test method covers two procedures for an approximate determination of the presence of injurious organic compounds in fine aggregates that are to be used in hydraulic cement mortar or concrete. One procedure uses a glass color standard and the other uses a standard color solution.
concrete; fine aggregates; organic impurities
AASHTO T21 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the AASHTO T21 standard.
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