发明名称 |
ZEMENTZUSATZMITTEL, ZEMENTZUSAMMENSETZUNG UND DARAUS HERGESTELLTER ZEMENTBETON |
摘要 |
<p>A cement admixture of a low environmental load type, capable of reducing hexavalent chromium, having a small slump loss or heat of hydration, hardly neutralized and capable of suppressing autogenous shrinkage to a low level; a cement composition; and cement concrete employing it, are presented. <??>The cement admixture comprises a slowly cooled slag powder which contains melilite as the main component and which has a carbon dioxide absorption of at least 2%, has a CO2 absorption of at least 2%, has a loss on ignition of at most 5%, contains at least 0.5% of sulfur present as non-sulfuric acid form sulfur and/or has a concentration of non-sulfuric acid form sulfur to elute, of at least 100 mg/l, and further, preferably, has a degree of vitrification of at most 30%, a melilite lattice constant a of from 7.73 to 7.82 and/or a Blaine specific surface area of at least 4,000 cm<2>/g.</p> |
申请公布号 |
AT488480(T) |
申请公布日期 |
2010.12.15 |
申请号 |
AT20020733388T |
申请日期 |
2002.06.07 |
申请人 |
DENKI KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
MORIOKA, MINORU;NAKASHIMA, YASUHIRO;HIGUCHI, TAKAYUKI;TAKAHASHI, MITSUO;YAMAMOTO, KENJI;SAKAI, ETUO;DAIMON, MASAKI |
分类号 |
C04B18/14;C04B7/19;C04B28/02;C04B28/04;C04B28/08;C21B3/04 |
主分类号 |
C04B18/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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