Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete with red mud and limestone powder as auxiliary cementing materials and preparation method of concrete
The invention discloses concrete with red mud and limestone powder as auxiliary cementing materials and a preparation method thereof, and belongs to the technical field of concrete, the concrete comprises the following raw materials: cement, red mud, limestone powder, silica fume, water, fine aggregate, a water reducer and steel fiber. The preparation method comprises the following steps: uniformly dry-mixing the cement, the red mud, the limestone powder, the silica fume and the sand, then adding the water and the water reducing agent, stirring again, then adding the steel fibers, continuously stirring, pouring after stirring is completed, demolding, and carrying out standard curing, so as to obtain the concrete taking the red mud and the limestone powder as the auxiliary cementing materials. The use amount of cement is reduced, the environmental problem caused by stacking of a large amount of solid waste is avoided, and meanwhile, the performance requirement of common UHPC can be met. Compared with common UHPC, the concrete provided by the invention is less in cement consumption and more excellent in mechanical property and durability.
本发明公开了一种由赤泥与石灰石粉作为辅助胶凝材料的混凝土及其制备方法，属于混凝土技术领域，包括以下原料：水泥、赤泥、石灰石粉、硅灰、水、细骨料、减水剂和钢纤维。其制备方法包括以下步骤：将所述水泥、赤泥、石灰石粉、硅灰以及砂干拌至均匀，然后加入水和减水剂再次搅拌，再将钢纤维加入后继续搅拌，搅拌完成后浇筑，拆模后进行标准养护，即得到所述由赤泥与石灰石粉作为辅助胶凝材料的混凝土。本发明减少了水泥用量，避免了大量固废堆放带来的环境问题，同时可以达到普通UHPC的性能要求。相较于普通UHPC，本发明提供的混凝土水泥用量更少，力学性能及耐久性更为优异。
Concrete with red mud and limestone powder as auxiliary cementing materials and preparation method of concrete
The invention discloses concrete with red mud and limestone powder as auxiliary cementing materials and a preparation method thereof, and belongs to the technical field of concrete, the concrete comprises the following raw materials: cement, red mud, limestone powder, silica fume, water, fine aggregate, a water reducer and steel fiber. The preparation method comprises the following steps: uniformly dry-mixing the cement, the red mud, the limestone powder, the silica fume and the sand, then adding the water and the water reducing agent, stirring again, then adding the steel fibers, continuously stirring, pouring after stirring is completed, demolding, and carrying out standard curing, so as to obtain the concrete taking the red mud and the limestone powder as the auxiliary cementing materials. The use amount of cement is reduced, the environmental problem caused by stacking of a large amount of solid waste is avoided, and meanwhile, the performance requirement of common UHPC can be met. Compared with common UHPC, the concrete provided by the invention is less in cement consumption and more excellent in mechanical property and durability.
本发明公开了一种由赤泥与石灰石粉作为辅助胶凝材料的混凝土及其制备方法，属于混凝土技术领域，包括以下原料：水泥、赤泥、石灰石粉、硅灰、水、细骨料、减水剂和钢纤维。其制备方法包括以下步骤：将所述水泥、赤泥、石灰石粉、硅灰以及砂干拌至均匀，然后加入水和减水剂再次搅拌，再将钢纤维加入后继续搅拌，搅拌完成后浇筑，拆模后进行标准养护，即得到所述由赤泥与石灰石粉作为辅助胶凝材料的混凝土。本发明减少了水泥用量，避免了大量固废堆放带来的环境问题，同时可以达到普通UHPC的性能要求。相较于普通UHPC，本发明提供的混凝土水泥用量更少，力学性能及耐久性更为优异。
Concrete with red mud and limestone powder as auxiliary cementing materials and preparation method of concrete
赤泥与石灰石粉作为辅助胶凝材料的混凝土及其制备方法
HUANG YUE (Autor:in) / CHEN QIANG (Autor:in) / YANG GUOTAO (Autor:in) / SHANG HUAISHUAI (Autor:in) / SONG JUN (Autor:in) / LIU XIAOYANG (Autor:in) / YOU WEIJIE (Autor:in) / ZHANG WEI (Autor:in)
12.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
Modified limestone powder, cementing material and preparation method
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