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近几年来,我国把节约水泥作为长期的一项技术经济政策。在全国工程建设节约水泥领导小组主持召开的“‘七五’工程建设节约水泥技术论证会”上,已经把开发应用混凝土外加剂作为节约水泥的五项技术措施之一。混凝土外加剂技术除节约水泥、节省能耗和降低工程造价外,还有改善混凝土工作性能、加快施工速度和提高工程质量等方面的显著效果。近几年在混凝土及其制品生产中推广应用外加剂的实际结果表明,混凝土外加剂技术是一项使用简便、技术经济效益显著、易于推广的新技术。现将其技术经济初步综合分析如后。一、现浇大体积混凝土在大型工业建设中,大体积的现浇混凝
In recent years, China has made saving cement a long-term technical and economic policy. In the “7th Five-Year Project to Save Energy Cement Technology Demonstration Conference” hosted by the National Cement Engineering Leading Group of the National Engineering Construction, the development and application of concrete admixtures has been one of the five technical measures to save cement. Concrete admixture technology not only saves cement, saves energy and reduces project cost, but also has significant effects in improving concrete work performance, accelerating construction speed, and improving project quality. The actual results of the application of admixtures in the production of concrete and concrete products in recent years show that the concrete admixture technology is a new technology that is easy to use, has significant technical and economic benefits, and is easy to popularize. Now a preliminary comprehensive analysis of its technical economy follows. First, in-situ large-volume concrete in large-scale industrial construction, large-scale cast-in-place coagulation