Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
All-solid waste ultra-high performance concrete mortar and preparation method thereof
The invention belongs to the technical field of concrete, and provides all-solid waste ultra-high performance concrete mortar. The iron tailings, the machine-made sand and the copper slag are used for replacing quartz sand to prepare the concrete mortar, the main component of the iron tailings is quartz, and the iron tailings have high hardness and can serve as aggregate to be doped into the concrete mortar to guarantee the strength of the concrete mortar; the use of the machine-made sand can improve the compressive and flexural strength of the concrete mortar and limit the volume deformation of the mortar, the use of the copper slag can greatly improve the fluidity of the concrete mortar and reduce the water utilization rate, and the fluidity and strength of the concrete mortar are ensured while the full solid waste replaces the quartz sand. The result of the embodiment shows that the fluidity of the all-solid waste ultra-high performance concrete mortar provided by the invention is 180mm, the 28d compressive strength is 115.03 MPa, and the 28d breaking strength is 19.9 MPa.
本发明属于混凝土技术领域，提供了一种全固废超高性能混凝土砂浆。本发明利用铁尾矿、机制砂和铜渣代替石英砂来制备混凝土砂浆，铁尾矿的主要成分为石英，具有很强的硬度，可以作为骨料掺入混凝土砂浆中以保证混凝土砂浆的强度，机制砂的使用可以提高混凝土砂浆的抗压与抗折强度、限制砂浆的体积变形，铜渣的使用会大幅改善混凝土砂浆的流动度，减少用水率，实现全固废代替石英砂的同时又保证了混凝土砂浆的流动性和强度。实施例的结果显示，本发明提供的全固废超高性能混凝土砂浆的流动度为180mm，28d抗压强度为115.03MPa，28d抗折强度为19.9MPa。
All-solid waste ultra-high performance concrete mortar and preparation method thereof
The invention belongs to the technical field of concrete, and provides all-solid waste ultra-high performance concrete mortar. The iron tailings, the machine-made sand and the copper slag are used for replacing quartz sand to prepare the concrete mortar, the main component of the iron tailings is quartz, and the iron tailings have high hardness and can serve as aggregate to be doped into the concrete mortar to guarantee the strength of the concrete mortar; the use of the machine-made sand can improve the compressive and flexural strength of the concrete mortar and limit the volume deformation of the mortar, the use of the copper slag can greatly improve the fluidity of the concrete mortar and reduce the water utilization rate, and the fluidity and strength of the concrete mortar are ensured while the full solid waste replaces the quartz sand. The result of the embodiment shows that the fluidity of the all-solid waste ultra-high performance concrete mortar provided by the invention is 180mm, the 28d compressive strength is 115.03 MPa, and the 28d breaking strength is 19.9 MPa.
本发明属于混凝土技术领域，提供了一种全固废超高性能混凝土砂浆。本发明利用铁尾矿、机制砂和铜渣代替石英砂来制备混凝土砂浆，铁尾矿的主要成分为石英，具有很强的硬度，可以作为骨料掺入混凝土砂浆中以保证混凝土砂浆的强度，机制砂的使用可以提高混凝土砂浆的抗压与抗折强度、限制砂浆的体积变形，铜渣的使用会大幅改善混凝土砂浆的流动度，减少用水率，实现全固废代替石英砂的同时又保证了混凝土砂浆的流动性和强度。实施例的结果显示，本发明提供的全固废超高性能混凝土砂浆的流动度为180mm，28d抗压强度为115.03MPa，28d抗折强度为19.9MPa。
All-solid waste ultra-high performance concrete mortar and preparation method thereof
一种全固废超高性能混凝土砂浆及其制备方法
GU XIAOWEI (Autor:in) / SUN WEI (Autor:in) / XU XIAOCHUAN (Autor:in) / WANG HAO (Autor:in) / WANG QING (Autor:in) / AI YINGYING (Autor:in) / DI JINGQIAO (Autor:in)
28.06.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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