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AASHTO T 21-05 (2009)
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AASHTO T 21-05 (2009) Standard Method of Test for Organic Impurities in Fine Aggregates for Concrete (ASTM C 40-04)
standard by American Association of State and Highway Transportation Officials, 2005
Full Description
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 standard color solution and the other uses a glass color standard.This method agrees with ASTM C 40-04, except for shifting of text between Sections 5.2 and 9.2.
M00002410
2021-03-02
New product
AASHTO T 21-05 (2009) Standard Method of Test for Organic Impurities in Fine Aggregates for Concrete (ASTM C 40-04)
standard by American Association of State and Highway Transportation Officials, 2005