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U型混凝土膨胀剂(简秒UEA)是中国建筑材料科学研究院的一项专利(专利号88102924),由南京江宁长山水泥厂开发生产。UEA荟萃了中国、前苏联和美国膨胀水泥之精华,是一种专用抗裂防水混凝土的特种外加剂。1988年通过部级技术鉴定。国家科委把UEA列为1989年度国家级新产品(1989国科发计字459号),1992年获省建材首届科技成果展览会进步奖,1993年获市优秀产品金马奖,同时获南京乡镇企业名牌产品、全国科技进步先进单位、中国乡镇企业科技奖,1993年被建设部列为重点推广
U-type concrete expansion agent (Jane seconds UEA) is a patent of China Academy of Building Materials Science (Patent No. 88102924), developed and produced by Nanjing Jiangning Changshan Cement Factory. UEA gathers the best of China, the former Soviet Union and the United States in expanding cement, and is a special admixture for special crack-resistant waterproof concrete. In 1988 passed the ministerial technical appraisal. The National Science and Technology Commission listed UEA as a state-level new product in 1989 (the 1989 Guokefajiu No. 459). In 1992, it won the first scientific and technological achievements exhibition progress award of the province’s building materials. In 1993, it won the city’s outstanding product Golden Horse Award and also won the Nanjing township. Enterprise brand-name products, advanced units of national scientific and technological advancement, and science and technology awards of Chinese township and township enterprises, which were listed as key promotions by the Ministry of Construction in 1993.