本欧洲标准规定了混凝土用混凝土的定义和要求。 它包括用于现场混合，预拌混凝土和预制混凝土的普通，增强和预应力混凝土的混合物。 本标准的性能要求适用于具体的正常稠度混合物。它们可能不适用于其他类型混凝土的混合物，如半干和湿润混合物。 混合物在混凝土生产中的实际应用规定，即混凝土混合物的组成，混合，放置，固化等方面的规定不属于本标准

This European Standard specifies definitions and requirements for admixtures for use in concrete. It covers admixtures for plain, reinforced and prestressed concrete which are used in site mixed, ready mixed concrete and precast concrete. The performance requirements in this standard apply to admixtures used in concrete of normal consistence. They may not be applicable to admixtures intended for other types of concrete such as semi dry and earth moist mixes. Provisions governing the practical application of admixtures in the production of concrete, i.e. requirements concerning composition, mixing, placing, curing etc. of concrete containing admixtures are not part of this standard.