| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve carbide slag so as to have sufficient strength without exerting an adverse effect on environment. <P>SOLUTION: In this improving method of byproduct slaked lime, the carbide slag being byproduct slaked lime and blast furnace slag are mixed first to obtain a mixture (step 101) and this mixture is subsequently solidified by hydration reaction to manufacture an improved object (step 102). By these steps, the carbide slag is cured by the latent hydraulicity of the blast furnace slag to be modified to the improved object having sufficient strength. Next, the cured improved body is aerially aged to be carbonated (step 103). This aerial ageing may be performed, for example, by outdoor air-drying. Next, the neutralized improved body is utilized as civil engineering material variously used as a landfilling material, a banking material, a back-filling material, a refilling material and the like (step 104). <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
