发明名称 |
ADDITIVE FOR PRODUCTION OF HIGHLY WORKABLE MORTAR CEMENT |
摘要 |
Mortar cement additives provide workability while retaining strength by employing a multi-stage polymer comprising a hydrophobically-modified ionically-soluble polymer stage, the polymer being soluble at a pH of 6 and above; and an air-entraining agent. The additives also employ, as optional ingredients, set retarding agents and superplasticizers. Exemplary methods of the invention involve addition of the multi-stage polymer and an airentraining agent to the mortar cement, preferably during intergrinding of Portland cement in the mill. Cement compositions comprising the polymer and an air-entraining agent are also disclosed.
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申请公布号 |
CA2284579(A1) |
申请公布日期 |
1998.10.01 |
申请号 |
CA19982284579 |
申请日期 |
1998.03.10 |
申请人 |
W.R. GRACE & CO.-CONN. |
发明人 |
ABELLEIRA, ANGEL;HALLOCK, JOHN |
分类号 |
C04B24/16;C04B24/26;C04B24/32;C04B28/02;(IPC1-7):C04B24/24 |
主分类号 |
C04B24/16 |
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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