ASTM C295/C295M-19
Standard Guide for Petrographic Examination of Aggregates for Concrete

Standard No.

ASTM C295/C295M-19

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM C295/C295M-19

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.

ASTM C295/C295M-19 Referenced Document

• ASTM C117 Standard Test Method for Materials Finer than 75-181m (No. 200) Sieve in Mineral Aggregates by Washing
• ASTM C136/C136M Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates*， 2019-12-01 Update
• ASTM C294 Standard Descriptive Nonmenclature for Constituents of Concrete Aggregates
• ASTM C33/C33M Standard Specification for Concrete Aggregates*， 2023-08-01 Update
• ASTM C702/C702M Standard Practice for Reducing Samples of Aggregate to Testing Size
• ASTM D75/D75M Standard Practice for Sampling Aggregates*， 2019-11-01 Update
• ASTM E11 Standard Specification for Wire Cloth and Sieves for Testing Purposes
• ASTM E883 Standard Guide for Reflected-Light Photomicrography

ASTM C295/C295M-19 history

• 2019 ASTM C295/C295M-19 Standard Guide for Petrographic Examination of Aggregates for Concrete
• 2018 ASTM C295/C295M-18a Standard Guide for Petrographic Examination of Aggregates for Concrete
• 2018 ASTM C295/C295M-18 Standard Guide for Petrographic Examination of Aggregates for Concrete
• 2012 ASTM C295/C295M-12 Standard Guide for Petrographic Examination of Aggregates for Concrete
• 2011 ASTM C295/C295M-11 Standard Guide for Petrographic Examination of Aggregates for Concrete
• 2008 ASTM C295-08 Standard Guide for Petrographic Examination of Aggregates for Concrete
• 2003 ASTM C295-03 Standard Guide for Petrographic Examination of Aggregates for Concrete
• 1998 ASTM C295-98 Standard Guide for Petrographic Examination of Aggregates for Concrete