抄録
It was clarified that highly fluid concrete (HFC) added with slowly cooled blast furnace slag powder (CFS) showed the same degree strength of as that of HFC added with lime stone powder (LSP) and that it was hard to carbonation. The HFC added with CFS showed a greater increase in strength during the carbonation process as compared with the HFC added with LSP and, as a result, pore volume decreased as well to become rigid and dense. We assumed that carbonation after that was suppressed thereafter. It was also found that, as a result of carbonation, melilite and α-CS, which were main components of the CFS, reacted as well.
