This test method is used in making a preliminary determination of the acceptability of fine aggregates with respect to the requirements of Specification C33 that relate to organic impurities.

The principal value of this test method is to furnish a warning that injurious amounts of organic impurities may be present. When a sample subjected to this test produces a color darker than the standard color it is advisable to perform the test for the effect of organic impurities on the strength of mortar in accordance with Test Method C87.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C33 Specification for Concrete Aggregates

C87 Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar

C125 Terminology Relating to Concrete and Concrete Aggregates

C702 Practice for Reducing Samples of Aggregate to Testing Size

D75 Practice for Sampling Aggregates

D1544 Test Method for Color of Transparent Liquids (Gardner Color Scale)

Keywords

colorimetric test; fine aggregate; organic impurities; Sand; Fine aggregate; Impurities--concrete/aggregate/mortar; Organic impurities;

ICS Code

ICS Number Code 91.100.30 (Concrete and concrete products)

Citing ASTM Standards

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