AS 2758.5:2020 pdf download.Aggregates and rock for engineering purposes Part 5: Specification for aggregates for asphalt.
3 Terms and definitions
For the purpose of this document, the terms and definitions in AS 2758.0 apply.
4 Sampling
Sampling of an aggregate shall be carried out in accordance with the methods in AS 1141.3.1.
NOTE 1 The frequency of sampling should be nominated in the works specification or the supply agreement or as agreed with the supplier. In the absence of any of these documents, refer to AS 2758.0: 2020 Appendix A for a sampling scheme.
NOTE 2 Reference samples may be taken during the course of supply and retained for later testing.
5 Testing
Testing of aggregates shall be carried out in accordance with the relevant requirements of the applicable method.
Laboratories that perform the tests outlined in this document shall meet the requirements of AS
ISO/IEC 17025.
The testing requirements and specified limits for all asphalt aggregates are prescribed in Clauses 4 to 10.
NOTE A number of requirements in this document are fundamental and this specification provides a single test method and limits for these properties. Alternative test procedures and limits are presented for the determination of both shape and durability. For these properties, it is recommended that the test procedure and limits that are particular to the geographic area in which the aggregate source is located should be used in specifying supply.
6 Dimensional requirements
6.1 Particle size distribution requirements for aggregate
Particle size distribution test results in accordance with AS 1141.11.1, AS 1141.11.2 or AS 1141.12 (as appropriate) shall be provided to indicate the average grading of the aggregate proposed for supply. This shall be known as the nominated grading.
When required, a representative sample, the grading of which shall be the basis for acceptance of the quotation, tender or source of supply shall be provided. The grading of this sample shall be known as the nominated grading.
For each aggregate, the allowable tolerances for the supply of the nominated grading shall conform to the tolerances shown in Table 1.AS 2758.5 pdf download.