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一、概述七十年代以来,我国混凝土减水剂的品种迅速增多,近年来,随着开发应用的发展,对混凝土减水剂提出了新的要求。目前,国内生产减水剂的厂家较多,但某些主要原料短缺,成本较高,使进一步推广受到限制。因此,从一九八二年开始,建材研究院水泥所与北京焦化厂合作,利用粗菲作原料,进行了AR减水剂的研究开发工作,经过实验室数百次试验,终于取得成功。从一九八三年到一九八四年,先后组织
I. Overview Since the 1970s, the variety of concrete water-reducing agent in China has rapidly increased. In recent years, with the development of development and application, new requirements have been put forward for concrete water-reducing agent. At present, there are many domestic manufacturers of water-reducing chemicals, but there are shortages of certain major raw materials and high costs, which limits the further promotion. Therefore, starting in 1982, the Cement Research Institute of Building Material Research Institute cooperated with the Beijing Coking Plant and used crude Philippine as raw material to carry out research and development of AR water reducer. After hundreds of experiments in the laboratory, it finally succeeded. From 1983 to 1984, they successively organized