3月23日,年产45000t混凝土膨胀剂系列产品生产线,在南京石膏矿竣工投产。该生产线是我国目前生产规模最大的混凝土膨胀剂生产线。 1991年,南京石膏矿经过详细的市场调研和技术论证,充分利用本矿硬石膏在混凝土膨胀剂中具有不可替代作用的优势,从有关科研院所 On March 23, the annual production capacity of 45,000 tons of concrete expansion agent product line was completed and put into operation at the Nanjing Gypsum Mine. The production line is China’s largest production scale of concrete expansion agent production line. In 1991, Nanjing Gypsum Mine conducted detailed market research and technical demonstration, making full use of the advantages of its anhydrite in the expansion agent for concrete, from the relevant scientific research institutes.