ASTM C311/C311M-24

Standard Test Methods for Sampling and Testing Coal Ash or Natural Pozzolans for Use in Concrete

standard by ASTM International , 01/01/2024

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Full Description

1.1 These test methods cover procedures for sampling and testing coal ash and raw or calcined pozzolans for use in concrete.

1.2 The procedures appear in the following order:

Sections Sampling 7 CHEMICAL ANALYSIS Reagents and apparatus 10 Moisture content 11 and 12 Loss on ignition 13 and 14 Silicon dioxide, aluminum oxide, iron oxide,
calcium oxide, magnesium oxide, sulfur
trioxide, sodium oxide and potassium
oxide 15 Available alkali 16 and 17 Ammonia 18 PHYSICAL TESTS Density 19 Fineness 20 Increase of drying shrinkage of mortar bars 21 - 23 Soundness 24 Air-entrainment of mortar 25 and 26 Strength activity index 27 - 30 Water requirement 31 Effectiveness of Coal Ash or Natural Pozzolan in
Controlling Alkali-Silica Reactions 32 Effectiveness of Coal Ash or Natural Pozzolan in
Contributing to Sulfate Resistance 34

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

Note 1: Sieve size is identified by its standard designation in Specification E11. The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.

1.4 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.

1.5 The text of this standard references notes and footnotes that provide explanatory information. These notes and footnotes (excluding those in tables) shall not be considered as requirements of this standard.

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.

Product Details

Published:: 01/01/2024
Number of Pages:: 11
File Size:: 1 file , 340 KB
Redline File Size:: 2 files , 470 KB
Note:: This product is unavailable in Russia, Ukraine, Belarus