发明授权
- 专利标题: Very fast setting cementitious composition
- 专利标题(中): 非常快速凝固水泥组合物
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申请号: US10414686申请日: 2003-04-16
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公开(公告)号: US06869474B2公开(公告)日: 2005-03-22
- 发明人: Marianela Perez-Pena , Ashish Dubey
- 申请人: Marianela Perez-Pena , Ashish Dubey
- 申请人地址: US IL Chicago
- 专利权人: United States Gypsum Company
- 当前专利权人: United States Gypsum Company
- 当前专利权人地址: US IL Chicago
- 代理机构: Jenkens & Gilchrist
- 代理商 John M. Lorenzen; David F. Janci
- 主分类号: C04B7/32
- IPC分类号: C04B7/32 ; C04B18/08 ; C04B18/14 ; C04B22/08 ; C04B22/10 ; C04B22/14 ; C04B24/06 ; C04B24/12 ; C04B28/04 ; C04B28/06
摘要:
Extremely fast setting of cementitious compositions for producing cement-based products such as cement boards is made possible by adding an alkanolamine to a hydraulic cement such as portland cement, and forming a slurry with water under conditions that provide an initial slurry temperature of at least 90° F. Use of alkanolamine under conditions disclosed herein allows an extremely rapid setting of the cementitious composition. Additional reactive materials may be included such as high alumina cement, calcium sulfate and a pozzolanic material such as fly ash. The extremely fast rapid set permits rapid production of cementitious products.
公开/授权文献
- US20040040474A1 Very fast setting cementitious composition 公开/授权日:2004-03-04