ASTM International - ASTM C295/C295M-19

Standard Guide for Petrographic Examination of Aggregates for Concrete

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Organization: ASTM International
Publication Date: 1 August 2019
Status: active
Page Count: 9
ICS Code (Concrete and concrete products): 91.100.30
significance And Use:

5.1 Petrographic examinations are made for the following purposes:

5.1.1 To determine the physical and chemical characteristics of the material that may be observed by petrographic methods... View More

scope:

1.1 This guide outlines procedures for the petrographic examination of samples representative of materials proposed for use as aggregates in cementitious mixtures or as raw materials for use in production of such aggregates. This guide is based on Ref (1).2

1.2 This guide outlines the extent to which petrographic techniques should be used, the selection of properties that should be looked for, and the manner in which such techniques may be employed in the examination of samples of aggregates for concrete.

1.3 The rock and mineral names given in Descriptive Nomenclature C294 should be used, insofar as they are appropriate, in reports prepared in accordance with this guide.

1.4 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.

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

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Document History

ASTM C295/C295M-19
August 1, 2019
Standard Guide for Petrographic Examination of Aggregates for Concrete
5.1 Petrographic examinations are made for the following purposes: 5.1.1 To determine the physical and chemical characteristics of the material that may be observed by petrographic methods and that...
November 1, 2018
Standard Guide for Petrographic Examination of Aggregates for Concrete
5.1 Petrographic examinations are made for the following purposes: 5.1.1 To determine the physical and chemical characteristics of the material that may be observed by petrographic methods and that...
July 1, 2018
Standard Guide for Petrographic Examination of Aggregates for Concrete
5.1 Petrographic examinations are made for the following purposes: 5.1.1 To determine the physical and chemical characteristics of the material that may be observed by petrographic methods and that...
April 1, 2012
Standard Guide for Petrographic Examination of Aggregates for Concrete
Petrographic examinations are made for the following purposes: To determine the physical and chemical characteristics of the material that may be observed by petrographic methods and that have a...
June 1, 2011
Standard Guide for Petrographic Examination of Aggregates for Concrete
Petrographic examinations are made for the following purposes: To determine the physical and chemical characteristics of the material that may be observed by petrographic methods and that have a...
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