| 发明名称 |
Method for underground support and removal of hazardous ions in ground waters |
| 摘要 |
Rectifying the compressive strength and toxic waste levels of ground water passages is achieved through the formation of a type C fly ash screen reinforcement of the passage.
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| 申请公布号 |
US4859344(A) |
申请公布日期 |
1989.08.22 |
| 申请号 |
US19880189571 |
申请日期 |
1988.05.03 |
| 申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
SPANGLE, LLOYD B.;COLEMAN, S. EBOW |
| 分类号 |
A62D3/00;A62D3/33;A62D101/24;A62D101/43;A62D101/45;A62D101/47;A62D101/49;C02F1/28;C04B28/02;C04B28/22 |
主分类号 |
A62D3/00 |
| 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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