发明名称 |
CORROSION INHIBITING HYDRAULIC CEMENT ADDITIVES AND COMPOSITIONS CONTAINING SAME |
摘要 |
An additive combination for hydraulic cement compositions is provided which advantageously provides corrosion inhibition and set acceleration, in combination with a high level of fluidity and retention of fluidity over a desired period of time. The cement additive combination comprises an alkali or alkaline earth metal nitrite and a graft copolymer plasticizer comprising a polyether backbone and side chain polymers formed by polymerization of ethylenically unsaturated monomers. Fluid hydraulic cement compositions are further provided comprising these additive combinations.
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申请公布号 |
CA2023830(C) |
申请公布日期 |
1999.04.27 |
申请号 |
CA19902023830 |
申请日期 |
1990.08.22 |
申请人 |
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发明人 |
ARFAEI, AHMAD;DALLAIRE, MICHAEL P.;BERKE, NEAL S.;HICKS, MARIA |
分类号 |
C04B28/02;C04B22/08;C04B24/26;C04B24/32;C04B28/04;C23F11/00;E02F3/84;(IPC1-7):C04B24/32 |
主分类号 |
C04B28/02 |
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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