AS 2758.1-1998

1 - AS 2758.1-1998 AGGREGATES AND ROCK FOR ENGINEERING PURPOSES - CONCRETE AGGREGATES
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 APPLICATION
6 - 3 REFERENCED DOCUMENTS
7 - 4 DEFINITIONS
7 - 4.1 Aggregate
7 - 4.1.1 Coarse aggregate
8 - 4.1.2 Fine aggregate
8 - 4.1.3 Heavyweight aggregate
8 - 4.1.4 Lightweight aggregate
8 - 4.1.5 Normal weight aggregate
8 - 4.1.6 Ultra lightweight aggregate
8 - 4.2 Bulk density
8 - 4.3 Nominal size
8 - 4.4 Particle density
8 - 4.5 Recycled aggregate
8 - 4.6 Single size aggregates
8 - 5 SAMPLING
8 - 5.1 General
8 - 5.2 Tender samples
8 - 6 TESTING
8 - 7 GENERAL REQUIREMENTS
8 - 7.1 Particle density
8 - 7.2 Bulk density
9 - 7.3 Water absorption
9 - 8 DIMENSIONAL REQUIREMENTS
9 - 8.1 Particle size distribution (grading)
9 - 8.1.1 General
9 - 8.1.2 Coarse aggregate
10 - 8.1.3 Fine aggregate
11 - 8.2 Material finer than 75 um
11 - 8.2.1 Coarse and fine aggregates
11 - 8.2.2 Material finer than 2 um
12 - 8.3 Particle shape in coarse aggregate
12 - 9 DURABILITY
12 - 9.1 General
12 - 9.2 Fine aggregates
13 - 9.3 Coarse aggregates
13 - 9.3.1 General
13 - 9.3.2 Wet strength and wet/dry strength variation
13 - 9.3.3 Los Angeles value and sodium sulfate soundness
14 - 9.3.4 Los Angeles value and unsound and marginal stone content
15 - 10 ALKALI-REACTIVE MATERIALS
15 - 10.1 General
15 - 10.2 Requirements
15 - 11 WEAK PARTICLES IN COARSE AGGREGATE
15 - 12 LIGHT PARTICLES
15 - 13 DRYING SHRINKAGE
16 - 14 IMPURITIES
16 - 14.1 Organic impurities
16 - 14.2 Sugar
16 - 14.3 Soluble salts
16 - 14.3.1 Chlorides
16 - 14.3.2 Sulfates
16 - 14.3.3 Other salts
16 - 15 ADDITIONAL REQUIREMENTS FOR SLAG AGGREGATES
16 - 15.1 Iron unsoundness
16 - 15.2 Falling or dusting unsoundness
17 - 15.3 Stockpiling of iron blast furnace slag aggregate
17 - 16 ADDITIONAL REQUIREMENTS FOR LIGHTWEIGHT AGGREGATES
17 - 16.1 Weak particles
17 - 16.2 Loss on ignition
17 - 16.3 Variation of bulk density
18 - APPENDIX A - EXPOSURE CLASSIFICATIONS
21 - APPENDIX B - TERMINOLOGY AND CLASSIFICATION (PETROLOGICAL)
21 - B1 INTRODUCTION
21 - B2 PARTICLE SHAPE AND SURFACE TEXTURE OF AGGREGATE

Provides a basis for specifying requirements for aggregates for use in concrete. This Standard is for use in conjunction with a works specification, and it is expected that requirements may be varied on the basis of local experience. The requirements relate to quality of rock, grading, durability and other properties of aggregates including lightweight aggregates.

This Standard provides a basis for specifying requirements for aggregates intended for use in the production of concrete, including precast products. The requirements and alternatives relate to quality of rock and the properties of aggregates including lightweight aggregates, and refer to the relevant test methods in AS 1141, AS 1012 and AS 4489.

First published in part as part of AS A24-1934.
AS A25 first published 1934.
AS A24-1934 and AS A25-1934 revised, amalgamated and redesignated AS A77-1957.
AS A168 first published 1971.
AS A77-1957 revised and redesignated in part as AS 1465-1974.
AS 1466 first published 1974.
AS A168-1971 revised and redesignated AS 1467-1975.
AS 1465-1974, AS 1466-1974 and AS 1467-1975 revised, amalgamated and redesignated AS 2758.1-1985.
Second edition 1998.