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常州市建工系统的施工点经常有一百个以上,在1978年以前施工用砼都是现场搅拌,这样,施工现场要配备搅拌站,水泥库、砂石堆场等,到工程完工才能搬迁。砼用材料因运输、堆放等浪费和损失较多;因材料质量、计量、管理等原因,砼质量很不稳定,离散系数大,工效又低。1978年常州市筹建了商品砼供应站,是双阶式试验性简易搅拌站,年产砼1.5万m~3。当年供应的商品砼量很少,主要原因是部份施工人员习惯现场自拌。当时
Changzhou Construction Engineering System often has more than one hundred construction sites. Prior to 1978, the construction hoe was used for on-site mixing. In this way, the construction site must be equipped with mixing stations, cement warehouses, and gravel storage yards, etc., and they must be relocated after the completion of the project. . The waste materials used for transportation and stacking are often wasted and lost; due to material quality, measurement, management, etc., the quality of the crucible is very unstable, the dispersion coefficient is large, and the work efficiency is low. In 1978, Changzhou City built a commodity supply station. It is a two-stage experimental simple mixing plant with an annual output of 15,000 m3. The amount of commodities supplied during the year was very small, mainly because some construction workers were accustomed to mixing on site. then