ASTM-C311 › Historical Revision Information
Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete
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Scope
1.1 These test methods cover procedures for sampling and testing fly ash and raw or calcined pozzolans for use in portland-cement 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 with portland cement | 27-30 |
Water requirement | 31 |
Effectiveness of Fly Ash or Natural Pozzolan in Controlling Alkali-Silica Reactions | 32 |
Effectiveness of Fly Ash or Natural Pozzolan in Contributing to Sulfate Resistance | 34 |
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.
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 and health 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.
Significance and Use
These test methods are used to develop data for comparison with the requirements of Specification C618. These test methods are based on standardized testing in the laboratory and are not intended to simulate job conditions.
Strength Activity Index—The test for strength activity index is used to determine whether fly ash or natural pozzolan results in an acceptable level of strength development when used with hydraulic cement in concrete. Since the test is performed with mortar, the results may not provide a direct correlation of how the fly ash or natural pozzolan will contribute to strength in concrete.
Chemical Tests— The chemical component determinations and the limits placed on each do not predict the performance of a fly ash or natural pozzolan with hydraulic cement in concrete, but collectively help describe composition and uniformity of the material.
Keywords
fly ash; natural pozzolan; Portland cement concrete (PCC); Pozzolans; Strength--cement/concrete mixtures/applications; Alkalies content--cement; Calcined pozzolans; Concrete admixtures; Fineness; Fly ash and other pozzolans; 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-C311-11a
Revision Level
2011A EDITION
Status
Superseded
Modification Type
Revision
Publication Date
July 15, 2011
Document Type
Test Method
Page Count
10 pages
Committee Number
C09.24