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A platform for research: civil engineering, architecture and urbanism
Activation method of regenerated micro powder and application of regenerated micro powder as auxiliary cementing material in cement-based grouting material
The invention discloses an activation method of regenerated micro-powder, which specifically comprises the following steps: sequentially carrying out mechanical activation, thermal activation and chemical activation on waste concrete to obtain regenerated micro-powder; the gel activity of the activated regenerated micro-powder is greatly improved, and the regenerated micro-powder has the capability of being used as a supplementary gel material. The invention also discloses an application of the regenerated micro powder prepared by the method as an auxiliary cementing material in a cement-based grouting material. Specifically, the reinforcing steel bar sleeve grouting material is prepared from the following components in parts by mass: 40-90 parts of cement, 10-60 parts of regenerated micro powder, 100 parts of natural sand, 0.7 part of a water reducing agent, 0.1 part of a defoaming agent, 0.05 part of an expanding agent and 20-22 parts of water.
本发明公开了一种再生微粉的活化方法，具体为：将废弃混凝土依次进行机械活化、热活化以及化学活化后，得到再生微粉；经活化后的再生微粉胶凝活性大幅提高，具有作为补充胶凝材料的能力。本发明还公开了上述方法制得的再生微粉作为辅助胶凝材料在水泥基灌浆料中的应用，具体为：所述钢筋套筒灌浆料由如下质量份数的组分组成：40～90份水泥、10～60份再生微粉、100份天然砂、0.7份减水剂、0.1份消泡剂、0.05份膨胀剂以及20～22份水。
Activation method of regenerated micro powder and application of regenerated micro powder as auxiliary cementing material in cement-based grouting material
The invention discloses an activation method of regenerated micro-powder, which specifically comprises the following steps: sequentially carrying out mechanical activation, thermal activation and chemical activation on waste concrete to obtain regenerated micro-powder; the gel activity of the activated regenerated micro-powder is greatly improved, and the regenerated micro-powder has the capability of being used as a supplementary gel material. The invention also discloses an application of the regenerated micro powder prepared by the method as an auxiliary cementing material in a cement-based grouting material. Specifically, the reinforcing steel bar sleeve grouting material is prepared from the following components in parts by mass: 40-90 parts of cement, 10-60 parts of regenerated micro powder, 100 parts of natural sand, 0.7 part of a water reducing agent, 0.1 part of a defoaming agent, 0.05 part of an expanding agent and 20-22 parts of water.
本发明公开了一种再生微粉的活化方法，具体为：将废弃混凝土依次进行机械活化、热活化以及化学活化后，得到再生微粉；经活化后的再生微粉胶凝活性大幅提高，具有作为补充胶凝材料的能力。本发明还公开了上述方法制得的再生微粉作为辅助胶凝材料在水泥基灌浆料中的应用，具体为：所述钢筋套筒灌浆料由如下质量份数的组分组成：40～90份水泥、10～60份再生微粉、100份天然砂、0.7份减水剂、0.1份消泡剂、0.05份膨胀剂以及20～22份水。
Activation method of regenerated micro powder and application of regenerated micro powder as auxiliary cementing material in cement-based grouting material
一种再生微粉的活化方法及其作为辅助胶凝材料在水泥基灌浆料中的应用
LI SHUIPING (author) / CHENG JIAN (author) / LI WEI (author) / YUAN BIN (author) / YU CHENGXIAO (author) / ZHANG YOUCHAO (author) / YU JIANBING (author)
2024-04-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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