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从1979年开始,我们通过调查研究,并同有关单位协作,以栲胶工业废料和炼焦厂废液为原料,研制成功引气型高效能混凝土减水剂—简称TRB。经过两年多的实验室大量试验和工程应
Since 1979, we have researched and researched, and cooperated with related units to develop successful bleed-type high performance concrete water reducer—TRB for short-term use of silicon rubber industrial waste and coking plant waste liquid. After more than two years of laboratory testing and engineering