JT/T 523-2004 in English

本标准规定了水泥混凝土中外加剂的术语和定义、技术要求、试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于公路工程用普通减水剂、高效减水剂、缓凝剂、缓凝减水剂、缓凝高效减水剂、引气剂、引气减水剂、引气高效减水剂、引气缓凝高效减水剂、早强剂和早强减水剂共十一种混凝土外加剂。

Scope

This standard specifies the terms and definitions, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of admixtures in cement concrete. This standard applies to ordinary water-reducing agents, high-efficiency water-reducing agents, retarders, retarding water-reducing agents, retarding high-efficiency water-reducing agents, air-entraining agents, air-entraining water-reducing agents, air-entraining high-efficiency water-reducing agents for highway engineering. , air-entraining retarding high-efficiency water-reducing admixture, early-strength admixture and early-strength water-reducing admixture, a total of eleven concrete admixtures.