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A platform for research: civil engineering, architecture and urbanism
Sleeve grouting repairing material for steel bar connection and preparation method thereof
The invention provides a sleeve grouting repair material for steel bar connection and a preparation method. The sleeve grouting repair material is prepared from 700 to 800 parts of cement, 100 to 200 parts of fine sand, 50 to 100 parts of coarse sand, 30 to 40 parts of expanding agent, 40 to 60 parts of superfine fly ash, 15 to 25 parts of silica fume, 4.0 to 5.0 parts of water reducing agent, 1.0 to 1.5 parts of retarder, 0.2 to 0.3 part of cellulose ether, 0.18 to 0.25 part of plastic expanding agent, 0.25 to 0.35 part of defoaming agent, 5 to 10 parts of rubber powder and 170 to 190 parts of water. The cellulose ether and the rubber powder are added, so that the water-retaining property of the material can be improved, and the material has relatively high flowability on the premise of ensuring that the material does not have the phenomena of sedimentation and bleeding; on the basis that the strength and the construction performance are met, the bonding performance between the material and steel can be improved; by adding the plastic expanding agent, the filling property of the material can be improved, and the bond stress between the steel bar and the sleeve and the material is increased.
本发明提供了一种钢筋连接用套筒灌浆修补料及制备方法，包括：水泥700‑800份、细砂100‑200份、粗砂50‑100份、膨胀剂30‑40份、超细粉煤灰40‑60份、硅灰15‑25份、减水剂4.0‑5.0份、缓凝剂1.0‑1.5份、纤维素醚0.2‑0.3份、塑性膨胀剂0.18‑0.25份、消泡剂0.25‑0.35份、胶粉5‑10份、水170‑190份；本发明添加了纤维素醚、胶粉，可增加材料的保水性，保证材料不出现沉降和泌水现象的前提下，具有较大的流动性；在满足强度和施工性能的基础上，可以增加材料与钢材之间的粘结性能；加入塑性膨胀剂，可提高材料的填充性，增大钢筋和套筒与材料的握裹力。
Sleeve grouting repairing material for steel bar connection and preparation method thereof
The invention provides a sleeve grouting repair material for steel bar connection and a preparation method. The sleeve grouting repair material is prepared from 700 to 800 parts of cement, 100 to 200 parts of fine sand, 50 to 100 parts of coarse sand, 30 to 40 parts of expanding agent, 40 to 60 parts of superfine fly ash, 15 to 25 parts of silica fume, 4.0 to 5.0 parts of water reducing agent, 1.0 to 1.5 parts of retarder, 0.2 to 0.3 part of cellulose ether, 0.18 to 0.25 part of plastic expanding agent, 0.25 to 0.35 part of defoaming agent, 5 to 10 parts of rubber powder and 170 to 190 parts of water. The cellulose ether and the rubber powder are added, so that the water-retaining property of the material can be improved, and the material has relatively high flowability on the premise of ensuring that the material does not have the phenomena of sedimentation and bleeding; on the basis that the strength and the construction performance are met, the bonding performance between the material and steel can be improved; by adding the plastic expanding agent, the filling property of the material can be improved, and the bond stress between the steel bar and the sleeve and the material is increased.
本发明提供了一种钢筋连接用套筒灌浆修补料及制备方法，包括：水泥700‑800份、细砂100‑200份、粗砂50‑100份、膨胀剂30‑40份、超细粉煤灰40‑60份、硅灰15‑25份、减水剂4.0‑5.0份、缓凝剂1.0‑1.5份、纤维素醚0.2‑0.3份、塑性膨胀剂0.18‑0.25份、消泡剂0.25‑0.35份、胶粉5‑10份、水170‑190份；本发明添加了纤维素醚、胶粉，可增加材料的保水性，保证材料不出现沉降和泌水现象的前提下，具有较大的流动性；在满足强度和施工性能的基础上，可以增加材料与钢材之间的粘结性能；加入塑性膨胀剂，可提高材料的填充性，增大钢筋和套筒与材料的握裹力。
Sleeve grouting repairing material for steel bar connection and preparation method thereof
钢筋连接用套筒灌浆修补料及制备方法
MA BINGYANG (author) / SHENG CHANGBO (author) / LIU XIAO (author) / LIU YANG (author) / YANG YUN (author)
2023-03-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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