一、概述当前,通过使用外加剂的方法来提高混凝土的施工质量,改善混凝土的物理性能与节约水泥,已日益受到广大工程技术人员的重视,并且已将外加剂视作混凝土的必要组成部分。因而关于混凝土外加剂的试验研究与推广使用也成为混凝土施工技术中重要研究课题。外加剂的种类虽然很多,但因要考虑性能、效果、货源、工艺、成本等多方面的技术经济因素,因此,如何利用本地工业下脚料,因地制宜,综 I. Overview At present, through the use of admixtures to improve the construction quality of concrete, improve the physical properties of concrete and save cement, has been increasingly concerned by the majority of engineering and technical personnel, and the admixture has been regarded as an integral part of the concrete. Therefore, the experimental research and promotion of concrete admixtures have become an important research topic in concrete construction technology. Although there are many types of admixtures, due to factors such as performance, effects, sources, processes, costs, and other technical and economic factors, how to use local industrial scraps to suit local conditions?