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一、概况七十年代中期,我局现浇砼施工技术,基本上沿用五十年代传统的小手工业的生产形式,施工现场设置0.4立方米搅拌机,以手推车或井架作为砼现场运输机具。它产量低,施工进度慢,用工多,劳动强度大,占用大面积施工场地,原材料损耗浪费大,质量难以保证,污染环境,现场很不文明。七十年代后期,随着国内外现浇砼生产和施工技术的不断进步,局领导采取果断决策:“实行砼集中搅拌,走商品化的道路”。在生产实践的基础上于1983年10月成立砼供应站,
I. INTRODUCTION In the mid-1970s, the in-situ concrete construction technology of the SIPO basically followed the production form of traditional small-scale handicrafts in the 1950s. A 0.4-m3 mixer was set up on the construction site, and a trolley or derrick was used as the on-site transport equipment. It has low production, slow construction progress, labor and labor intensity, and it occupies large-scale construction sites. The raw materials are wasted and waste, and the quality is difficult to guarantee. The environment is polluted and the site is uncivilized. In the late 1970s, with the continuous advancement of cast-in-place production and construction technology at home and abroad, the leaders of the Bureau took decisive decisions: “Implementing the intensive stirring and taking the road to commercialization.” Based on the production practice, we established a supply station in October 1983.