发明名称 |
Workable cementitious compositions |
摘要 |
<p>A process for modifying the slump of a concrete or mortar by the addition at different times of a water-soluble poly(alkylene oxide) and a beta -naphthalene sulphonate-formaldehyde condensate, a plasticizer or superplasticizer which is selected from lignosulphonates, melamine sulphonate formaldehyde condensates, carboxylates and selected styrene-maleic anhydride copolymers. The poly(alkylene oxide) is preferably partially replaced by a (hydroxy)alkyl cellulose. The process is advantageously used in shotcreting.</p> |
申请公布号 |
SG43970(A1) |
申请公布日期 |
1997.11.14 |
申请号 |
SG19960008037 |
申请日期 |
1993.07.20 |
申请人 |
SANDOZ LTD. |
发明人 |
FRANSZ, JOSEF, DRS.;TJUGUM ODD MAGNUS;VALENTI SALVATORE;MELBYE TOM |
分类号 |
C04B24/18;B28C7/00;C04B24/22;C04B24/26;C04B24/30;C04B24/32;C04B28/02;(IPC1-7):C04B24/24;C04B28/04 |
主分类号 |
C04B24/18 |
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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