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混凝土中掺用外加剂技术可显著改善混凝土性能和节约水泥,在工业发达国家被普遍采用。因而被公认为混凝土中的第五种成分。从七十年代开始,在我国掀起了外加剂技术特别是减水剂的生产和应用技术的发展热潮,为适应外加剂形势发展的需要,经混凝土外加剂学会及全国各主要外加剂厂一年多的组织筹备工作,经业务主管部门国家建筑材料工业局批准成立“中国建材工业协会混凝土外加剂协会”。
The addition of admixtures to concrete can significantly improve the performance of concrete and save cement, and is commonly used in industrialized countries. It is therefore recognized as the fifth component in concrete. Since the 1970s, an upsurge in the development of admixture technology, especially in the production and application of water-reducing agents, has started in China. To meet the needs of the development of admixtures, the Society for Concrete Admixture and all major admixture plants in China have been active for one year. With more preparations for the organization, the “China National Building Material Industry Association Concrete Admixture Association” was approved by the National Building Materials Industry Bureau of the competent business department.