1. SCOPE

1.1 This standard covers the requirements of artificial lightweight aggregates, namely foamed blast furnace slag, bloated clay aggregate, and cinder aggregate intended for use in concrete masonry units and for applications other than structural concrete, in which prime consideration is lightness in mass.

1.2 This standard does not cover sintered fly ash coarse aggregates, which is covered in IS 9142 (Part 2).

2. REFERENCES

The standards given below contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below:

269 : 2015 Ordinary Portland cement —Specification (sixth revision)

383 : 2016 Coarse and fine aggregate for concrete — Specification (third revision)

1199 (Part 5) : 2018 Method of sampling and analysis of fresh concrete: Part 5 Making and curing of test specimens (first revision)

386 Methods of test for aggregates for concrete

(Part 1) : 1963 Particle size and shape

(Part 2) : 1963 Estimation of deleterious materials and organic impurities

(Part 3) : 1963 Specific gravity, density, voids, absorption and bulking

2430 : 1986 Methods for sampling of aggregates for concrete (first revision)

2686 : 1977 Specification for cinder aggregates for use in lime concrete (first revision)

4032 : 1985 Method of chemical analysis of hydraulic cement (first revision)

4905 : 2015/ISO 24153 : 2009 Random sampling and randomization procedures (first revision)

9142 (Part 2) : 2018 Artificial lightweight aggregate for concrete — Specification: Part 2 Sintered fly ash coarse aggregate ( first revision)