<報文>転炉スラグの硬化に関する基礎的研究

概要

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In order to utilize steel slag as a hardening material in slag pile method, some experiments on hardening phenomena of steel slag were carried out in autoclve curing and water curing. The results obtained are as follows : (1) Autoclave curing (200℃, 3hr) gives the compression strength of 500kg/cm^2 to steel slag containing small amounts of free CaO, and the strength is 100kg/cm^2 more than rapidly cooled blast furnace slag. Ca(OH)_2 transformed by preliminary autoclave treatment of steel slag containing considerable amounts of free CaO is desirable as additive to rapidly cooled blast furnace slag in following autoclave curing. (2) In the case of water curing the coempression strength of 50kg/cm^2 of steel slag is significantly increasd to 500 and 200kg/cm^2 respectively, by adding such inorganic electrolytes as CaCl_2 and Al_2(SO_4)_3 in water.
1981-03-25