发明名称 |
REACTIVATABLE SET-INHIBITED CEMENTITIOUS COMPOSITIONS |
摘要 |
Aqueous grouting compositions based on high alumina cement have the onset of setting delayed for upwards of one month by the incorporation therein of a set-inhibiting agent such as boric acid or gluconic acid delta lactone and can then be rapidly reactivated for use by the incorporation therein of a reactivator, for example lithium carbonate, to produce a high strength hardened cementitious composition. The reactivated composition can advantageously be used to anchor a reinforcing element such as a rockbolt or dowel in a borehole and for this purpose the set-inhibited cementitious composition and the reactivator can be packaged in the separate compartments respectively of a dual-compartment frangible cartridge. |
申请公布号 |
GB2111041(B) |
申请公布日期 |
1985.07.03 |
申请号 |
GB19820034980 |
申请日期 |
1982.12.08 |
申请人 |
SA * D'EXPLOSIFS ET DE PRODUITS CHIMIQUES |
发明人 |
ROBERT HARDY * SPENSLEY;JOHN * ELLIS |
分类号 |
C04B24/00;C04B24/02;C04B24/08;C04B28/06;C09K8/46;C09K17/00;C09K17/10;C09K17/42;C09K17/44;C09K17/48;C09K103/00;E21D20/02;F16B13/14 |
主分类号 |
C04B24/00 |
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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