发明名称 |
RETARDING THE SETTING OF CEMENTS |
摘要 |
A retarding agent for cement consists essentially of in percent by weight: }CaF2 50 - 65 }Ca3(PO4)2 7 - 12 }CaSO4 5 - 7.5 }SiO2 10 - 20 }Fe2O3 1 - 2 }Al2O3 1 - 5, } this retarding agent is preferably the insoluble residue by-product obtained by dissolving raw phosphate with an inorganic acid. It retards the setting of cement at high ambient temperatures, and can be used as well with sea water or with fresh water in the making of concrete and the like. |
申请公布号 |
AU1786176(A) |
申请公布日期 |
1978.03.23 |
申请号 |
AU19760017861 |
申请日期 |
1976.09.17 |
申请人 |
CHEMICAL DEVELOPMENT CORP AND TESSENDERLO CHEMIE S.A. |
发明人 |
JEAN BUCHET;FERNAND PEERTS |
分类号 |
C04B22/16;C04B22/00 |
主分类号 |
C04B22/16 |
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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