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IS Number | |||
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IS 9103 : 1999 |
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Title :-Concrete Admixtures - Specification (First Revision) | |||
Unit Price |
Status |
Amendment |
Reaffirmed |
Gr 7 |
Active |
1 |
2004 |
Page Size |
No. of Pages |
Tech. Committee |
|
A4 |
14 |
CED 2 |
|
ICS 91.100.30 | |||
1 Scope
1.1 This standard covers the chemical and air-entraining admixtures including superplasticizers, solid or liquid or emulsion, to be added to cement concrete at the time of mixing so as to achieve the desired property in concrete, in the plastic or hardened state.
1.2 The different types of admixtures covered in this standard are as follows:
a) Accelerating admixtures,
b) Retarding admixtures,
c) Water-reducing admixtures,
d) Air-entraining admixtures, and
e) Superplasticizing admixtures.
1.3 The chloride content in the admixture shall be declared by the manufacturer. SuperPlasticizers are expected to be chloride free.
1.3.1 Admixtures that contain relatively large amounts of chloride may accelerate corrosion of prestressing steel, Where corrosion of such steel is of major concern, compliance with the requirement of this specification does not constitute assurance of acceptability of the admixture for use in prestressed concrete. In case of reinforced concrete, to minimize the chances of deterioration of concrete, the total chloride content in the concrete should be limited as specified in IS 456.
2 References
IS 269 : 1989 Specification for 33 grade ordinary Portland cement
IS 383 : 1970 Specification for coarse and fine aggregates from natural sources for concrete
IS 456 : 1978 Code of practice for plain and reinforced concrete
IS 516 : 1959 Method of test for strength of concrete
IS 1199 : 1959 Methods of sampling and analysis of concrete
IS 2386 : Part 3 : 1963 Methods of test for aggregates for concrete : Part 3 Specific gravity, density, voids, absorption and bulking
IS 3535 : 1966 Methods of sampling hydraulic cement
IS 6925 : 1973 Methods of test for determination of water soluble chlorides in concrete admixtures
IS 8112 : 1989 Specification for 43 grade ordinary Portland cement
IS 8142 : 1976 Methods of test for determining setting time of concrete penetration resistance
IS 12269 : 1987 Specification for 53 grade ordinary Portland cement