发明名称 |
CEMENT ADMIXTURE, CEMENT COMPOSITION AND METHOD FOR SUPPRESSING CARBONATION USING THE SAME |
摘要 |
<p>A cement admixture and a cement composition having a carbonation suppressing effect and a heat-of-hydration suppressing effect are provided. A cement admixture containing one or more non-hydraulic compounds selected from the group consisting of gamma -2CaO.SiO2, alpha -CaO.SiO2 and calcium magnesium silicate, a cement composition containing said admixture, and a carbonation suppressing method by use of said cement admixture or cement composition. According to the present invention, a remarkable carbonation suppressing effect can be obtained particularly when used in portland blast-furnace slag cement. This leads to an effective use of steelmaking slag and the like, and the load of clinker can be reduced, so that a cement composition of a low environmental load type can be attained. Further, this is suitable for cements in conformity with the EN standards, which are used in civil engineering and building industries.</p> |
申请公布号 |
EP1420000(A1) |
申请公布日期 |
2004.05.19 |
申请号 |
EP20020760674 |
申请日期 |
2002.08.20 |
申请人 |
DENKI KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
MORIOKA, MINORU;HIGUCHI, TAKAYUKI;OHASHI, HIROYUKI;NAKASHIMA, YASUHIRO |
分类号 |
C04B14/04;C04B28/08;(IPC1-7):C04B22/08;C04B28/02 |
主分类号 |
C04B14/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|