1.0.1 This specification is formulated with purposes of uniforming the mixing proportion design method of the ordinary concrete, satisfying the design and implementation requirements and ensuring the quality of the concrete works.
1.0.2 This specification is applicable to the mix proportion design of the ordinary concrete adopted in the industrial and civil buildings as well as general structures.
1.0.3 The mixing proportion of the ordinary concrete shall be calculated on the base of the raw material performance and the concrete technical requirements; after through laboratory testing and mixing as well as adjustment, the mixing proportion hereof can be identified.
1.0.4 When carrying out mix proportion design of ordinary concrete, not only the provisions of this specification but also the relevant provisions of the currently compulsive standards shall be complied with.
1. General provisions
2. Terminology and symbols
2.1 Terminology
2.2 Symbols
3. Determination of concrete mix intensity
4. Basic parameters in the mix proportion design of concrete
5 Calculation of concrete mix proportion
6 Trial mix adjustment and determination of concrete mix proportion
6.1 Trial mix
6.2 Adjustment and determination of mix proportion
7. Concrete mix proportion design with special purposes
7.1 Impermeable concrete
7.2 Frost-resistant concrete
7.3 High-strength concrete
7.4 Pumped concrete
7.5 Mass concrete
Explanation on wording
