ASTM-C40 Historical Revision Information
Standard Test Method for Organic Impurities in Fine Aggregates for Concrete

ASTM-C40 - 2004 EDITION - SUPERSEDED
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Standard Test Method for Organic Impurities in Fine Aggregates for Concrete
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Scope

1.1 This test method covers two procedures for an approximate determination of the presence of injurious organic impurities 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.

1.2 The values given in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Significance and Use

This test method is used in making a preliminary determination of the acceptability of fine aggregates with respect to the requirements of Specification C 33 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 C 87.

Keywords

colorimetric test; fine aggregate; organic impurities; ICS Number Code 91.100.30 (Concrete and concrete products)

To find similar documents by ASTM Volume:

04.02 (Concrete and Aggregates)

To find similar documents by classification:

91.100.30 (Concrete and concrete products Including admixtures)

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Document Number

ASTM-C40-04

Revision Level

2004 EDITION

Status

Superseded

Modification Type

Revision

Publication Date

Jan. 1, 2004

Document Type

Test Method

Page Count

2 pages

Committee Number

C09.20