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A platform for research: civil engineering, architecture and urbanism
Sprayed high-ductility concrete and preparation method thereof
The invention discloses sprayed high-ductility concrete and a preparation method thereof. The sprayed high-ductility concrete is characterized by being prepared from, by mass, 1 part of cementing material, 0.3-0.4 part of quartz sand, 0.01-0.02 part of synthetic fiber, 0.0001-0.0002 part of water reducing agent, 0.001-0.02 part of redispersible latex powder, 0.03-0.05 part of accelerator, 0.0001-0.0002 part of plastic stabilizer, 0.0004-0.0005 part of defoaming agent and 0.2-0.3 part of water. The sprayed high-ductility concrete has the beneficial effects that the sprayed high-ductility concrete effectively solves the problem that the high-ductility concrete is difficult to carry out spraying construction, and meanwhile, overcomes the defect that common sprayed concrete is difficult to play a role in reinforcing the structure; and the sprayed high-ductility concrete disclosed by the invention has good fiber dispersity, and the problem of material blockage in the spraying construction process is reduced. According to the sprayed high-ductility concrete, the redispersible latex powder is adopted, the cohesive force among particles is increased, and the rebound rate of the sprayed high-ductility concrete is effectively reduced.
本发明公开了一种喷射高延性混凝土及其制备方法，其特征在于，其原料按质量份计算包括：胶凝材料1份，石英砂0.3～0.4份，合成纤维0.01～0.02份，减水剂0.0001～0.0002份，可再分散乳胶粉0.001～0.02份，速凝剂0.03～0.05份，稳塑剂0.0001～0.0002份，消泡剂0.0004～0.0005份，水0.2～0.3份。本发明的有益效果为：本发明的喷射高延性混凝土有效的解决了高延性混凝土难以进行喷射施工，同时也弥补了普通喷射混凝土难以起到结构加固作用的弊端；本发明的喷射高延性混凝土具有良好的纤维分散性，减少了喷射施工过程中堵料问题的产生。本发明的喷射高延性混凝土采用可再分散乳胶粉，增加了颗粒间的粘聚力，有效的降低了喷射高延性混凝土的回弹率。
Sprayed high-ductility concrete and preparation method thereof
The invention discloses sprayed high-ductility concrete and a preparation method thereof. The sprayed high-ductility concrete is characterized by being prepared from, by mass, 1 part of cementing material, 0.3-0.4 part of quartz sand, 0.01-0.02 part of synthetic fiber, 0.0001-0.0002 part of water reducing agent, 0.001-0.02 part of redispersible latex powder, 0.03-0.05 part of accelerator, 0.0001-0.0002 part of plastic stabilizer, 0.0004-0.0005 part of defoaming agent and 0.2-0.3 part of water. The sprayed high-ductility concrete has the beneficial effects that the sprayed high-ductility concrete effectively solves the problem that the high-ductility concrete is difficult to carry out spraying construction, and meanwhile, overcomes the defect that common sprayed concrete is difficult to play a role in reinforcing the structure; and the sprayed high-ductility concrete disclosed by the invention has good fiber dispersity, and the problem of material blockage in the spraying construction process is reduced. According to the sprayed high-ductility concrete, the redispersible latex powder is adopted, the cohesive force among particles is increased, and the rebound rate of the sprayed high-ductility concrete is effectively reduced.
本发明公开了一种喷射高延性混凝土及其制备方法，其特征在于，其原料按质量份计算包括：胶凝材料1份，石英砂0.3～0.4份，合成纤维0.01～0.02份，减水剂0.0001～0.0002份，可再分散乳胶粉0.001～0.02份，速凝剂0.03～0.05份，稳塑剂0.0001～0.0002份，消泡剂0.0004～0.0005份，水0.2～0.3份。本发明的有益效果为：本发明的喷射高延性混凝土有效的解决了高延性混凝土难以进行喷射施工，同时也弥补了普通喷射混凝土难以起到结构加固作用的弊端；本发明的喷射高延性混凝土具有良好的纤维分散性，减少了喷射施工过程中堵料问题的产生。本发明的喷射高延性混凝土采用可再分散乳胶粉，增加了颗粒间的粘聚力，有效的降低了喷射高延性混凝土的回弹率。
Sprayed high-ductility concrete and preparation method thereof
一种喷射高延性混凝土及其制备方法
CHEN BEINI (author) / BU XINXING (author) / FU FABING (author) / LYU LEI (author)
2021-03-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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