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AS 1141.60.2:2014

[Current]

Methods for sampling and testing aggregates, Method 60.2: Potential alkali-silica reactivity - Concrete prism method

Sets out the procedure to classify aggregate according to its susceptibility to alkali attack leading to expansive reactions in concrete.
Published: 10/09/2014
Pages: 12
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Referenced documents
3 Definitions
4 Apparatus
4.1 Balance
4.2 Laboratory mixing area
4.3 Comparator
4.3.1 General
4.3.2 Horizontal or inclined comparator
4.3.3 Reference bar
4.3.4 Operator precision check
4.4 Humidity controlled storage area
4.5 Gauge studs
4.6 Length gauge
4.7 Mallet
4.8 Moulds
4.8.1 General
4.8.2 Construction of the moulds
4.9 Storage container
4.10 Storage environment
4.10.1 General
4.10.2 Required environment
4.11 Tamping bar (hand compaction)
4.12 Vibrating table
5 Reagents and materials
5.1 General
5.2 Sodium hydroxide (NaOH)
5.3 Cement
6 Sampling and mix design
6.1 Aggregates
6.2 Concrete mixture proportions
6.2.1 Cement content
6.2.2 Water-to-cement ratio
6.2.3 Mix design
6.2.4 Admixture sodium hydroxide (NaOH)
7 Preparation of test samples and test pieces
8 Procedure
8.1 Initial comparator reading
8.2 Storage procedures
8.3 Determination of moisture loss
8.4 Subsequent comparator readings
9 Calculation
10 AS 1141.60.2 Aggregate classification
11 Test report
Appendix A
A1 Background
A2 Alkali-silica reactivity
A3 Mitigative procedures
Amendment control sheet
AS 1141.60.2:2014
Amendment no. 1 (2016)
Revised text
Cited references in this standard
[Current]
Methods for sampling and testing aggregates, Method 3.1: Sampling — Aggregates
[Pending Revision]
General purpose and blended cements
[Current]
Aggregates and rock for engineering purposes, Part 1: Concrete aggregates
[Current]
Methods of testing portland, blended and masonry cements, Method 12: Preparation of a standard mortar and moulding of specimens
[Current]
Methods for sampling and testing aggregates, Method 60.1: Potential alkali-silica reactivity - Accelerated mortar bar method
Content history
DR AS 1141.60.2

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