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由交通部公路科学研究所、水电部天津勘测设计院科研所、北京市第二建筑工程公司混凝土搅拌站及北京市第一建筑工程公司构件厂共同协作研究成功的《盐浸提化学滴定法快速测定新拌混凝土水灰比》的技术鉴定会,于1986年4月28～29日在京召开。出席鉴定会的有交通部科技局、建筑材料科学研究院、水利电力部水电总局、冶金部建筑研究总院、交通部第二公路勘察设计院、武汉建材工业大学北京研究生部、交通部一航局科研所、北京市建筑工程总公司、北京市第一、二建筑工程公司共计10个单位的专家10
By the Ministry of Communications Highway Science Institute, Ministry of Water Resources Tianjin Research Institute of Survey and Design Institute, Beijing Second Construction Company concrete mixing plant and Beijing No. 1 Construction Company Component Factory collaborative research success of “salt extraction chemical titration rapid Determination of fresh concrete water-cement ratio ”technical appraisal meeting, in April 1986 April 28 to 29 held in Beijing. Attend the appraisal will be the Ministry of Science and Technology Bureau of Transportation, Building Materials Science Research Institute, Ministry of Water Resources and Hydropower Administration, Ministry of Metallurgical Building Research Institute, Ministry of Communications Road Survey and Design Institute of the Second Road, Wuhan University of Building Materials Beijing Graduate Department of Transportation Bureau of Scientific Research, Beijing Municipal Construction Engineering Corporation, Beijing City, the first two construction companies a total of 10 units of experts 10