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一、前言为了满足“七五”期间工程建设对混凝土减水剂的需要,广州造纸厂、广州市建筑科学研究设计所和国家建材局苏州混凝土水泥制品研究院三方合作,联合研制了以亚硫酸盐纸张废液为原料的 MG 缓凝引气减水剂。目前已建成年产2千吨的生产线,有1千多吨产品应用于150多万立方米混凝土中,并出口香港、日本,“七五”期末将建成年产2万吨 MG 缓凝引气减水剂的生产线。二、产品性能(一)物化性能MG 缓凝引气减水剂是从以马尾松为原
I. INTRODUCTION In order to meet the demand for concrete water-reducing agent during the “7th Five-Year Plan” period, the Guangzhou Paper Mill, the Guangzhou Institute of Building Research and Design and the State Building Materials Administration Suzhou Concrete and Cement Products Research Institute cooperated in a tripartite cooperation to develop the sulfurous acid. The salt paper waste liquid is a MG retarder air-entraining water-reducing agent. Currently, it has built a production line with an annual output of 2,000 tons. More than 1,000 tons of products are used in more than 1.5 million cubic meters of concrete and exported to Hong Kong and Japan. At the end of the 7th Five-Year Plan period, an annual output of 20,000 tons of MG will be built. Water reducer production line. Second, product performance (a) physicochemical properties MG retarding air-entraining water reducing agent is from the original masson pine