Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reinforced anti-crack cement-based grouting material and preparation method thereof
The invention relates to a reinforced anti-crack cement-based grouting material and a preparation method thereof. The grouting material is prepared from the following raw materials: quartz sand, cement, silica fume, concrete waste, a powdery polycarboxylic acid water reducing agent, a thixotropic lubricant, a carbon nanotube/natural rubber composite anti-crack material, an expanding agent and a defoaming agent. By adding the carbon nanotube/natural rubber composite anti-crack material, the compressive strength and fracture toughness of the grouting material are remarkably improved, the elasticity, fluidity and creep resistance of the grouting material are improved by the natural rubber powder, and the natural rubber powder and the grouting material form a composite enhanced anti-crack effect; the silica fume and the concrete waste are added into the cement, so that the environment is protected, the cost is reduced, the grain composition of the cement paste is optimized, the components of the cement paste are dispersed more uniformly, the volume stability and the flowing property of the grouting material can be enhanced, and the operability and the later strength of the grouting material are improved; the preparation method is simple and low in cost.
一种增强抗裂水泥基灌浆料及其制备方法，该灌浆料由以下原料制成：石英砂、水泥、硅灰、混凝土废料、粉状聚羧酸减水剂、触变润滑剂、碳纳米管/天然橡胶复合抗裂材料、膨胀剂和消泡剂；本发明添加了碳纳米管/天然橡胶复合抗裂材料，显著提高了灌浆料的抗压强度、断裂韧性，天然橡胶粉体增加了灌浆料的弹性、流动性和抗蠕变能力，二者形成了复合增强抗裂效果；本发明通过在水泥中添加硅灰和混凝土废料，不仅环保且降低了成本，还使得水泥浆体的颗粒级配得到了优化，水泥浆体各组分分散更均匀，能够增强灌浆料的体积稳定性及流动性能，提高灌浆料的可操作性和后期强度；本发明制备方法简单，成本较低。
Reinforced anti-crack cement-based grouting material and preparation method thereof
The invention relates to a reinforced anti-crack cement-based grouting material and a preparation method thereof. The grouting material is prepared from the following raw materials: quartz sand, cement, silica fume, concrete waste, a powdery polycarboxylic acid water reducing agent, a thixotropic lubricant, a carbon nanotube/natural rubber composite anti-crack material, an expanding agent and a defoaming agent. By adding the carbon nanotube/natural rubber composite anti-crack material, the compressive strength and fracture toughness of the grouting material are remarkably improved, the elasticity, fluidity and creep resistance of the grouting material are improved by the natural rubber powder, and the natural rubber powder and the grouting material form a composite enhanced anti-crack effect; the silica fume and the concrete waste are added into the cement, so that the environment is protected, the cost is reduced, the grain composition of the cement paste is optimized, the components of the cement paste are dispersed more uniformly, the volume stability and the flowing property of the grouting material can be enhanced, and the operability and the later strength of the grouting material are improved; the preparation method is simple and low in cost.
一种增强抗裂水泥基灌浆料及其制备方法，该灌浆料由以下原料制成：石英砂、水泥、硅灰、混凝土废料、粉状聚羧酸减水剂、触变润滑剂、碳纳米管/天然橡胶复合抗裂材料、膨胀剂和消泡剂；本发明添加了碳纳米管/天然橡胶复合抗裂材料，显著提高了灌浆料的抗压强度、断裂韧性，天然橡胶粉体增加了灌浆料的弹性、流动性和抗蠕变能力，二者形成了复合增强抗裂效果；本发明通过在水泥中添加硅灰和混凝土废料，不仅环保且降低了成本，还使得水泥浆体的颗粒级配得到了优化，水泥浆体各组分分散更均匀，能够增强灌浆料的体积稳定性及流动性能，提高灌浆料的可操作性和后期强度；本发明制备方法简单，成本较低。
Reinforced anti-crack cement-based grouting material and preparation method thereof
一种增强抗裂水泥基灌浆料及其制备方法
WANG WEI (Autor:in) / ZHOU TINGTING (Autor:in)
28.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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