| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a steelmaking slag hardened body in which no insufficiency in strength, any cracking or the like, is caused even when steelmaking slag having a <=0.3 mass % P2O5 content is used as a part of the raw material. SOLUTION: This production process involves the step of mixing granular steelmaking slag, an SiO2-containing material having potential hydraulicity and water together to form a mixture and to produce a hardened body from the mixture, wherein. The granular steelmaking slag having a <=0.3 mass % P2O5 is used; as the SiO2-containing material having potential hydraulicity, fine-powdery blast-furnace slag is used; and further, the content of the steelmaking slag which has <=1.18 mm grain size and contains a <=0.3 mass % P2O5 content is adjusted to 10-90 mass % and the content of the fine-powdery blast-furnace slag is adjusted to 5-40 mass % on the basis of the total content of all the components excluding water of the mixture.</p> |
