NZS 3121:2015

Contents

Referenced documents

Latest revisions

Review of standards

Foreword.

Outcome statement

Section

1 General

1.1 Scope

1.2 Interpretation

1.3 Definitions

2 Water

2.1 General requirements

2.2 Water from public supply

2.3 Water from other sources

2.4 Impurities and their effects

2.5 Control tests on recycled wash water

3 Aggregate

3.1 General requirements

3.2 Aggregate testing

3.3 Alkali aggregate reaction

3.4 Chloride content

3.5 Harmful materials

3.6 Recycled materials used as aggregate in concrete.

4 Coarse aggregate

4.1 Properties of coarse aggregate

4.2 Production properties of coarse aggregate

4.3 Additional production property control testing of coarse aggregate

4.4 Source properties of coarse aggregate

4.5 Additional source property control testing of coarse aggregate

4.6 Coarse aggregate sampling and testing

5 Sand

5.1 Types of sand (fines) used in concrete manufacture

5.2 Manufactured sands

5.3 Blending of sands

5.4 Production properties of sand

5.5 Additional production property control testing of sands

5.6 Quality of fines

5.7 Sand sampling and testing

5.8 Plant records

Table

1 Suggested limits for composition of concrete mixing water

2 Recycled wash water SG test requirements

3 Composition requirements for recycled material used as coarseaggregate in concrete

4 Grading requirements for coarse aggregates

5 Intermediate test sieve sizes

6 Monthly coarse aggregate sampling and grading test rate

7 Sand flow test

8 Monthly sand sampling and grading test rate

Figure

1 Flow time versus per cent voids plot illustrating the characteristics ofsand