T/SDGSY 16-2024 Active Group standards

T/SDGSY 16-2024 Salt-resistant alkali-resistant gypsum slag concrete

Publish Date: 2024-12-20 Implement Date: 2025-01-20 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/SDGSY 16-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Civil Engineering Comprehensive

Publish Date: 2024-12-20

Implement Date: 2025-01-20

Scope

Scope:1 Scope This document specifies the terms and definitions, classification, raw materials, technical requirements, test methods, inspection rules, storage and transportation of gypsum slag concrete resistant to salt and alkali corrosion. This document is applicable to gypsum slag concrete used in environments subject to salt and alkali corrosion, such as saline-alkaline soils and marine environments. Main technical contents:6 Technical requirements for concrete mixtures 6.1.1 Workability of concrete The workability of concrete mixtures includes fluidity, cohesion, and water retention. The performance of concrete mixtures shall meet the construction requirements. The cohesion and water retention shall comply with the corresponding requirements of GB/T 50080-2002. 6.1.2 Setting time of concrete The setting time of concrete shall meet the engineering technical requirements. Hardened concrete 6.2.1 Strength of concrete The strength grade of concrete shall comply with the requirements of GB 50164. 6.2.2 Resistance to salt and alkali corrosion - For Cl-diffusion coefficient, when used in environments affected by chloride ions, the Cl-diffusion coefficient test shall be conducted: - For concrete prepared with gypsum slag cement, the Cl-diffusion coefficient shall be less than 1.5×10-12 m2/s; - For use in other environments, it shall comply with the requirements of current relevant standards. - For resistance to sulfate corrosion coefficient: - For use in environments with sulfate and other salts erosion, the resistance to sulfate corrosion performance test shall be conducted according to the proportion of cementitious materials used in gypsum slag concrete, and the corrosion resistance coefficient shall not be less than 1.0; - For use in other environments, it shall comply with the requirements of current relevant standards. 7 Test methods - Performance of concrete mixtures The water retention and cohesion of concrete mixtures