ASTM C87/C87M − 10 Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar

Scope of ASTM C87/C87M − 10 Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar

1.1 This test method covers the determination of the effect on mortar strength of the organic impurities in fine aggregate, whose presence is indicated using Test Method C40.

Comparison is made between compressive strengths of mortar made with washed and unwashed fine aggregate.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard.

The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

Combining values from the two systems may result in non-conformance with the standard. Some values have only SI units because the inch-pound equivalents are not used in the practice

Significance and Use of ASTM C87/C87M − 10 Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar

4.1 This test method is of significance in making a final determination of the acceptability of fine aggregates with respect to the requirements of Specification C33 concerning organic impurities.

4.2 This test method is applicable to those samples which, when tested in accordance with Test Method C40, have