公开(公告)号：US4452637A

公开(公告)日：1984-06-05

申请号：US457683

申请日：1983-01-13

申请人： Yuichi Suzukawa ,  Waichi Kobayashi ,  Shigeo Okabayashi ,  Hidefumi Ichinose

发明人： Yuichi Suzukawa ,  Waichi Kobayashi ,  Shigeo Okabayashi ,  Hidefumi Ichinose

IPC分类号： C04B22/12 ,  C04B7/32 ,  C04B22/00 ,  C04B22/14 ,  C04B7/35

CPC分类号： C04B7/326 ,  C04B22/008

摘要： An expansive cement additive and a cementitious material added therewith, said expansive additive consisting of a pulverized product of clinker containing 15.about.60% by weight of free CaO, 5.about.30% by weight of free CaF.sub.2, 30.about.80% by weight of 11CaO.7Al.sub.2 O.sub.3.CaF.sub.2, and less than 10% by weight of other ingredients or a mixed pulverized product of said clinker and gypsum, in which the weight ratio of CaSO.sub.4 /Al.sub.2 O.sub.3 ranges from 1.0 to 3.5.

摘要翻译： 一种膨胀水泥添加剂和一种水泥质材料，所述膨胀添加剂由熟料的粉碎产物组成，该粉碎产物含有15重量％的游离CaO，5重量％的游离CaF 2，30重量％的碳酸钙，30重量％的11CaO 0.7 Al 2 O 3·C 2 F 2和小于10重量％的其它成分或所述熟料和石膏的混合粉碎产物，其中CaSO 4 / Al 2 O 3的重量比为1.0-3.5。