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AS 1379 SUPP 1-2008

[Current]

Specification and supply of concrete - Commentary (Supplement 1 to AS 1379-2007)

Provides background material to the Standard, indicates the origin of particular requirements and the departures from previous practice and explains the application of certain clauses.
Published: 12/06/2008
Pages: 40
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
C1 Scope and general
C1.1 Scope
C1.2 Referenced documents
C1.3 Definitions
C1.4 Notation
C1.5 Specification of concrete
C1.5.1 General
C1.5.2 Standard strength grades
C1.5.3 Normal-class concrete
C1.5.3.1 General
C1.5.3.2 Basic parameters
C1.5.4 Special-class concrete
C1.6 Methods of ordering
C1.7 Basis of supply
C1.7.1 General
C1.7.2 Volume of plastic concrete
C1.7.3 Identification certificate
C2 Concrete constituents
C2.1 General
C2.2 Cement constituents
C2.3 Aggregates
C2.4 Mixing water
C2.5 Chemical admixtures
C2.6 Other materials
C2.7 Limitations on chemical content of concrete
C2.7.1 Chemical admixtures
C2.7.2 Sulfate content
C2.7.3 Chloride content
C2.8 Alkali aggregate reaction
C3 Plant and equipment
C3.1 General
C3.2 Storage containers
C3.3 Weighing equipment
C3.3.1 Indicating devices
C3.3.2 Accuracy
C3.3.3 Weight-hoppers
C3.3.4 Continuous feed weighers
C3.4 Liquid dispensing equipment
C3.4.1 Indicating devices
C3.4.2 Accuracy of metering
C3.4.3 Maintenance
C3.5 Mixers
C3.5.1 General
C3.5.2 Batch mixers
C3.5.3 Continuous mixers
C4 Production and delivery
C4.1 General
C4.1.1 Production process
C4.1.2 Method of measuring quantities of ingredients
C4.1.3 Bases for determination of mass
C4.1.4 Method of batching ingredients
C4.1.5 Sequence of introduction of materials
C4.1.6 Records
C4.2 Batch production
C4.2.1 Tolerances on batch ingredients
C4.2.1.1 Ingredients other than water
C4.2.1.2 Water
C4.2.2 Batch mixing
C4.2.2.1 General
C4.2.2.2 Central mixing
C4.2.2.3 Mobile mixing
C4.2.2.4 Staged mixing
C4.2.3 Addition of water to a mixed batch
C4.2.4 Addition of admixtures and other materials to a mixed batch
C4.2.5 Period for completion of discharge
C4.3 Continuous production
C4.3.1 Feeding material
C4.3.1.1 Solid ingredients
C4.3.1.2 Liquid ingredients
C4.3.1.3 Accuracy of batching rates for cementitious materials
C4.3.1.4 Accuracy of flow rates for coarse, fine, and total aggregates
C4.3.2 Mixing
C4.4 Delivery
C4.4.1 General
C4.4.2 Temperature at point of delivery
C4.4.3 Duration of delivery
C5 Sampling and testing of concrete
C5.1 General
C5.1.1 Sampling and testing
C5.1.2 Grouping of plants
C5.1.3 Customer access
C5.2 Slump
C5.2.1 Frequency of testing
C5.2.2 Determination of slump
C5.2.3 Compliance
C5.2.4 Repeat tests for slumps
C5.3 Strength
C5.3.1 28 day characteristic strength
C5.3.2 Strength other than 28 day characteristic strength
C5.3.3 Compliance
C5.3.4 Action to be taken on non-compliance
C5.4 Air content
C5.5 Chloride and sulfate content
C5.6 Drying shrinkage
C5.6.1 Drying shrinkage of normal-class concrete
C5.6.2 Drying shrinkage of special-class concrete
C5.7 7 day strength of normal-class concrete
C5.8 Other parameters
C6 Sampling, testing and assessment for compliance of concrete specified by compressive strength
C6.1 General
C6.2 Sampling and testing
C6.2.1 General
C6.2.2 Sampling
C6.2.3 Making and curing of cylinder specimens
C6.2.4 Testing of cylinder specimens
C6.2.5 Test strength of samples
C6.3 Production assessment
C6.3.1 Basic requirements of production control
C6.3.1.1 General requirement
C6.3.1.2 Designation of grades
C6.3.1.3 Frequency of assessment
C6.3.1.4 Assessment factor
C6.3.1.5 Assessment of grade
C6.3.2 Grade being assessed
C6.3.3 Sampling frequency
C6.3.4 Production interval
C6.3.5 Standard deviation
C6.3.5.1 Standard deviation of a controlled grade
C6.3.5.2 Sample size for the standard deviation of a controlled grade
C6.3.5.3 Standard deviation for an associated grade
C6.3.6 Grouping of plants to determine nc and s
C6.3.7 Action on non-compliance
C6.3.8 Early age assessment of controlled grades
C6.4 Recording and dissemination of production assessment information
C6.5 Project assessment of strength grade
C6.6 Assessment by alternative methods with an accepted operating characteristic
Appendix CA
Appendix CB
Appendix CC
Cited references in this standard
Content history
[Current]
AS 1379 SUPP 1-2008 REC:2018
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