| 发明名称 |
LIGHT-WEIGHT BACKFILL MATERIAL |
| 摘要 |
A light-weight backfill material comprises mineral binding agent and lightening mineral admixture. As lightening mineral admixture one uses expanded perlite sand, e.g. of M-100 grade. |
| 申请公布号 |
UA73377(U) |
申请公布日期 |
2012.09.25 |
| 申请号 |
UA20120001875U |
申请日期 |
2012.02.20 |
| 申请人 |
POLTAVA YURII KONDRATIUK NATIONAL TECHNICAL UNIVERSITY |
发明人 |
ORLOVSKYI VITALII MYKOLAIOVYCH;MYKHAILENKO SERHII HRYHOROVYCH;LUZHANYTSIA OLEKSANDR VASYLIOVYCH |
| 分类号 |
E21B33/138 |
主分类号 |
E21B33/138 |
| 代理机构 |
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代理人 |
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