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AS 1141.60.1:2014
[Current]Methods for sampling and testing aggregates, Method 60.1: Potential alkali-silica reactivity - Accelerated mortar bar 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: 13
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Referenced documents
3 Definitions
4 Apparatus
4.0 General
4.1 Standard mortar and mould
4.2 Laboratory mixing area and humidity controlled storage area
4.3 Balance
4.4 Comparator
4.4.1 General
4.4.2 Vertical comparator
4.4.3 Horizontal or inclined comparator
4.4.4 Reference bar
4.4.5 Operator precision check
4.5 Containers
4.6 Gauge studs
4.7 Length gauge
4.8 Mixer, paddle, and mixing bowl
4.9 Moulds
4.10 Oven or water bath
4.11 Sieves
4.12 Sodium hydroxide bath
4.13 Tamper and trowel
4.14 Temperature recording apparatus
5 Reagents
5.1 General
5.2 Sodium hydroxide solution
5.3 Hydrochloric acid solution
5.4 Phenolphthalein indicator
6 Sampling, preparation of aggregates and preparation of test specimens
6.1 Sampling of aggregate
6.2 Initial preparation of aggregate
6.2.1 General
6.2.2 Fine aggregates
6.2.3 Coarse aggregate
6.3 Final preparation of manufactured fine aggregate and coarse aggregate
6.4 Selection and preparation of cement
6.5 Preparation of test specimens
6.5.1 General
6.5.2 Preparation of moulds
6.5.3 Proportioning of mortar
6.5.4 Conditioning of materials
6.5.5 Mixing of mortar
6.5.6 Measuring of flow
6.5.7 Moulding of test specimens
7 Procedure
7.1 Initial storage and reading
7.2 Zero readings
7.3 Subsequent storage and measurement
8 Calculation
9 AS 1141.60.1 Aggregate reactivity classification
10 Test report
Appendix A
A1 Background
A2 Alkali-silica reactivity
A3 Mitigative procedures
Amendment control sheet
AS 1141.60.1:2014
Amendment No. 1 (2019)
Revised text
Cited references in this standard
[Current]
Alkali Aggregate Reaction — Guidelines on Minimising the Risk of Damage to Concrete Structures in Australia
[Current]
Methods for sampling and testing aggregates, Method 3.1: Sampling — Aggregates
[Current]
Methods of testing concrete, Method 13: Determination of the drying shrinkage of concrete for samples prepared in the field or in the laboratory
[Current]
Methods for sampling and testing aggregates, Method 60.2: Potential alkali-silica reactivity - Concrete prism method
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