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  • ASTM
    C311/C311M-13 Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete
    Edition: 2013
    $103.58
    Unlimited Users per year

Description of ASTM-C311 2013

ASTM C311 / C311M - 13

Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete

Active Standard ASTM C311 / C311M | Developed by Subcommittee: C09.24

Book of Standards Volume: 04.02




ASTM C311 / C311M

Significance and Use

4.1 These test methods are used to develop data for comparison with the requirements of Specification C618 or Specification C1697 . These test methods are based on standardized testing in the laboratory and are not intended to simulate job conditions.

4.1.1 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.

4.1.2 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.

1. 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 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.

Note 1 Sieve size is identified by its standard designation in Specification D1426 . 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 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.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C33 Specification for Concrete Aggregates

C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)

C114 Test Methods for Chemical Analysis of Hydraulic Cement

C125 Terminology Relating to Concrete and Concrete Aggregates

C150 Specification for Portland Cement

C151 Test Method for Autoclave Expansion of Hydraulic Cement

C157/C157M Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete

C185 Test Method for Air Content of Hydraulic Cement Mortar

C188 Test Method for Density of Hydraulic Cement

C204 Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus

C219 Terminology Relating to Hydraulic Cement

C226 Specification for Air-Entraining Additions for Use in the Manufacture of Air-Entraining Hydraulic Cement

C227 Test Method for Potential Alkali Reactivity of Cement-Aggregate Combinations (Mortar-Bar Method)

C430 Test Method for Fineness of Hydraulic Cement by the 45-m (No. 325) Sieve

C441 Test Method for Effectiveness of Pozzolans or Ground Blast-Furnace Slag in Preventing Excessive Expansion of Concrete Due to the Alkali-Silica Reaction

C604 Test Method for True Specific Gravity of Refractory Materials by Gas-Comparison Pycnometer

C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete

C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials

C778 Specification for Sand

C1012 Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution

C1437 Test Method for Flow of Hydraulic Cement Mortar

C1697 Specification for Blended Supplementary Cementitious Materials

D1426 Test Methods for Ammonia Nitrogen In Water

D4326 Test Method for Major and Minor Elements in Coal and Coke Ash By X-Ray Fluorescence

E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves

ACI Document

ACI 201.2R Guide to Durable Concrete

Keywords

fly ash; natural pozzolan;


ICS Code

ICS Number Code 91.100.30 (Concrete and concrete products)


DOI: 10.1520/C0311_C0311M-13

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