Standard
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AS 1141.3.1:2021
[Current]Methods for sampling and testing aggregates, Method 3.1: Sampling — Aggregates
AS 1141.3.1 defines requirements and specifies test methods for: taking samples of coarse and fine aggregates; subdividing samples; and packing and forwarding samples for examination and testing. Limited to aggregate and rock products with a nominal size of 75 mm or less. May be applied to non-stabilized soil product or soil and rock blends, provided that the maximum particle size is less than 75 mm
Published: 05/11/2021
Pages: 45
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Normative references
3 Terms and definitions
4 Apparatus
4.1 General
4.2 Necessary apparatus
4.3 Procedural apparatus
4.4 Additional apparatus
5 Sampling
5.1 General
5.2 Common reasons for sampling
5.2.1 General
5.2.2 Sampling for average properties only
5.2.3 Sampling for average properties and variability
5.2.4 Sampling for contamination or for a specific property in a limited area of a stockpile
5.2.5 Sampling for other purposes
6 Samples, increment size, laboratory crushing of samples and sample reduction
6.1 General
6.2 Sample increment size
6.3 Sample size and composition
6.4 Laboratory crushing
6.5 Sample reduction
6.5.1 General
6.5.2 Reduction by sample divider
6.5.3 Reduction by rotary sample divider
6.5.4 Reduction by quartering
6.5.5 Reduction by channelling
7 Sampling using mechanical samplers
8 Hand sampling procedures
8.1 Sampling from a stopped conveyor belt
8.2 Sampling from bins
8.3 Sampling from trucks
8.3.1 General
8.3.2 Recovery of sample increments
8.3.3 Sampling of fine aggregate
8.4 Sampling from stockpiles
8.4.1 General
8.4.2 Hand sampling with a shovel or a scoop from the top of a trimmed stockpile
8.4.3 Hand sampling from the sides of a stockpile
8.4.4 Use of sampling tubes
9 Sampling aided by power equipment
9.1 General
9.2 Sampling by costeaning
9.2.1 Limitations of costeaning
9.2.2 Sectioning of stockpile
9.2.3 Sampling procedure
9.3 Sampling using the backblading method
9.4 Sampling using other than the backblading method
10 Sampling at construction sites
10.1 Sampling from a placed layer
10.2 Sampling from small heaps or windrows
11 Packaging and identification
11.1 Records
11.2 Containers
11.3 Labelling
12 Test report
Appendix A
A.1 Scope
A.2 General
A.3 Additional terms
Appendix B
B.1 Scope
B.2 General
B.3 Segregation mechanisms
B.4 Spatial distribution
B.5 Characteristics of stockpiles
B.6 Sampling to avoid segregation
B.7 Purpose and principles of sampling
B.7.1 Purpose
B.7.2 Principles
B.8 Additional sampling techniques
B.8.1 Mechanical sampling (including high speed sampling) using sample cutters of various types
B.8.2 Trimmed stockpiles
B.8.3 Problems with sampling large stockpiles
Appendix C
C.1 Scope
C.2 General
C.3 Sampling points
C.4 Sampling scheme and product acceptance
Bibliography
Cited references in this standard
[Withdrawn]
Guide to the sampling of particulate materials, Part 6: Inspection of mechanical sampling systems
[Withdrawn]
Guide to the sampling of particulate materials, Part 1: Sampling procedures
[Current]
Methods for sampling and testing aggregates, Method 2: Basic testing equipment
Content history
[Superseded]
[Superseded]
DR AS 1141.3.1:2021
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