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据日本对美、日、苏、西欧等二十个国家钢铁碴利用情况的统计,高炉碴几乎全都利用,而钢碴利用率约为65％。其中用于筑路的钢碴,1979年约为50％。在美国商品钢碴中用于道路基层和沥青拌合料中的比例,1976年为41％,1977年为50％,1978年为64％,逐年有所增加。我国对钢碴的利用率很低,用于筑路的更少。上海、武汉、天津等地对钢碴用于筑路曾进行过研究和试验,但大多利用的是平炉钢碴。本文主要介绍转炉钢碴用于道路基层材料的研究成果和情况,供有关单位借鉴和参考。
According to Japan’s statistics on the utilization of steel ballast in 20 countries such as the United States, Japan, the Soviet Union and Western Europe, almost all of the blast furnace ballast is utilized, while the utilization rate of steel ballast is about 65%. Of these, ballast used for road construction was about 50% in 1979. The proportion used in the United States commercial ballast for road base and asphalt mixes was 41% in 1976, 50% in 1977 and 64% in 1978, increasing year by year. China’s utilization of ballast is very low, less for road construction. Shanghai, Wuhan, Tianjin and other places for ballast for road construction have been studied and tested, but most of the use of open hearth steel ballast. This paper mainly introduces the research results and situations of converter steel ballast used in road base material for reference and reference by relevant agencies.