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在大中城市发展商品混凝土是建筑业改变旧的生产方式,适应建设规模扩大和任务增长需要的重要措施。我建筑工程材料公司自一九八○年八月至一九八五年底共生产各种标号的商品混凝土189万立方米。设计平均标号达256号,应用范围也由原来的工业与民用建筑工程的基础、地坪、道路,逐步扩大到内浇外砌的住宅建筑、地下连续墙、地铁、隧道、沉井等
The development of commercial concrete in large and medium-sized cities is an important measure for the construction industry to change old production methods and adapt to the needs of building expansion and mission growth. From August 1980 to the end of 1985, China Construction Materials Co., Ltd. produced a total of 1.89 million cubic meters of commercial concrete of various brands. The average design number is 256. The scope of application is also gradually expanded from the foundation, floor, and road of the original industrial and civil construction projects to residential buildings, underground continuous walls, subways, tunnels, open caissons, etc.