Waste Affected the Ecological Environment

In the beginning of the development of the metallurgical industry, blast furnace slag once dumped and buried as waste affected the ecological environment. In the 1960s, with the development of the stirring concrete industry, blast furnace slag powder is used widely as an independent component of concrete and active admixture, and Europe and the United States also developed a national standard for it. The research and development of micro-technology of blast furnace slag in China started in the 1990s, some large domestic iron and steel enterprises imported water slag vertical mill production line from developed countries one after another to comprehensive use the large number of slag and turn waste into treasure. Currently, the domestic slag powder production has increased year by year and successfully applied to key state projects, such as the Ring Elevated overseas, Lupu Bridge, the maglev train project, as well as exporting to other countries.
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