Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite ultrafine powder for ultrahigh-strength concrete, ultrahigh-strength concrete and preparation method thereof
The invention relates to the technical field of building materials, in particular to a composite ultrafine powder for ultrahigh-strength concrete, an ultrahigh-strength high-performance concrete and apreparation method thereof. The use amounts of the fly ash micro-beads, mineral powder and silica fume are controlled so that the ratio becomes reasonable, the microscopic continuous grading of various powder materials is achieved, and the micro-aggregate effect of the powder materials is provided, such that after the concrete is added, the compactness of the concrete is improved, the strength and the durability of the concrete are enhanced, the viscosity of the concrete mixture is reduced, the workability is improved, the cement consumption is reduced, and the production cost is reduced. Thecomposite ultrafine powder prepared at a proper mixing ratio is added into concrete preparation, so that the compressive strength of the concrete can reach 120 MPa or above.
本发明涉及建筑材料技术领域，尤其是一种超高强混凝土用复合超细粉、超高强高性能混凝土及其制备方法，经过粉煤灰微珠、矿粉、硅灰的用量进行控制，使得配比合理化，实现各粉体材料微观连续级配，发挥粉体材料的微集料效应，使得加入混凝土之后，改善混凝土的密实度，增强混凝土的强度和耐久性，降低了混凝土拌合物粘度，改善了工作性，降低了水泥用量，降低了生产成本；合适的配合比下配制而得的复合超细粉加入到混凝土配制中，能够使得混凝土的抗压强度达到120MPa以上。
Composite ultrafine powder for ultrahigh-strength concrete, ultrahigh-strength concrete and preparation method thereof
The invention relates to the technical field of building materials, in particular to a composite ultrafine powder for ultrahigh-strength concrete, an ultrahigh-strength high-performance concrete and apreparation method thereof. The use amounts of the fly ash micro-beads, mineral powder and silica fume are controlled so that the ratio becomes reasonable, the microscopic continuous grading of various powder materials is achieved, and the micro-aggregate effect of the powder materials is provided, such that after the concrete is added, the compactness of the concrete is improved, the strength and the durability of the concrete are enhanced, the viscosity of the concrete mixture is reduced, the workability is improved, the cement consumption is reduced, and the production cost is reduced. Thecomposite ultrafine powder prepared at a proper mixing ratio is added into concrete preparation, so that the compressive strength of the concrete can reach 120 MPa or above.
本发明涉及建筑材料技术领域，尤其是一种超高强混凝土用复合超细粉、超高强高性能混凝土及其制备方法，经过粉煤灰微珠、矿粉、硅灰的用量进行控制，使得配比合理化，实现各粉体材料微观连续级配，发挥粉体材料的微集料效应，使得加入混凝土之后，改善混凝土的密实度，增强混凝土的强度和耐久性，降低了混凝土拌合物粘度，改善了工作性，降低了水泥用量，降低了生产成本；合适的配合比下配制而得的复合超细粉加入到混凝土配制中，能够使得混凝土的抗压强度达到120MPa以上。
Composite ultrafine powder for ultrahigh-strength concrete, ultrahigh-strength concrete and preparation method thereof
一种超高强混凝土用复合超细粉、超高强混凝土及其制备方法
LIU JIANBING (Autor:in) / YANG CHAOJUN (Autor:in) / WANG YONG (Autor:in) / ZHAO YUAN (Autor:in) / QIN SIBO (Autor:in)
20.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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