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自1889年我国第一家水泥厂唐山启新水泥厂成立以来,水泥工业经历了近一个世纪的发展,从当初的一家水泥厂发展到今天的大小近8千余家水泥厂,产量从最初的不足万吨,发展成今天的59700万吨,品种由当初的单一品种的水泥发展为今天的3大系列60多个品种。而指导和控制水泥生产的水泥国家标准也经历了以下几个阶段的变革。 1、解放前,东北地区的水泥厂一般采用日本标准,而华新、江南等南方水泥厂一般采用美国及英国标准。 2、解放后,1952年全国统一了水泥标准强度检验方法是采用日本软练法,胶砂比为1∶2。 3、1956年后为了适应前苏联对我国工业的援助,在1962年颁布了以前苏联标准为基础制订的水泥标准,强度检验方法是采用硬练法,胶砂比为1∶3
Since the establishment of Tangshan Qixin Cement Factory, the first cement factory in China in 1889, the cement industry has experienced nearly a century of development. From the time it was originally a cement plant to the size of today’s nearly 8,000 cement plants, the output from the initial Less than 10,000 tons, developed into today’s 59.7 million tons, the variety from the original single-type cement to today’s 3 series of more than 60 varieties. The cement national standards for guiding and controlling cement production have also undergone changes in the following stages. 1. Before the liberation, cement plants in the northeast region generally adopted Japanese standards, while southern cement factories such as Huaxin and Jiangnan generally adopted the United States and British standards. 2. After the liberation, in 1952, the national unified strength test method for cement standard was adopted Japanese softening method, and the ratio of glue to sand was 1:2. 3. After 1956, in order to adapt to the assistance of the former Soviet Union to China’s industry, in 1962, cement standards based on the former Soviet Union standards were promulgated. The strength test method was based on the hard training method. The ratio of glue to sand was 1:3.