Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cementing material, all-solid waste concrete and preparation method of all-solid waste concrete
The invention provides a cementing material, all-solid waste concrete and a preparation method thereof. The cementing material comprises the following components in percentage by mass: 25-35% of steel slag powder, 45-55% of slag powder, 10-15% of desulfurized gypsum powder and 5-10% of alkaline residue powder. According to the cementing material prepared by the preparation method disclosed by the invention, the potential hydraulic activity and "double salt effect" of silica tetrahedrons and alumina tetrahedrons in the slag powder are fully exerted by utilizing the mutual excitation effect among the alkaline residue powder, the steel slag powder, the slag powder and the desulfurized gypsum, and the cementing material capable of being hydrated and hardened is prepared. The cementing material is used for replacing cement and is mixed with waste sand, waste rock, water and a water reducing agent to prepare the all-solid waste concrete. According to the technology, 25-35% of raw material cost can be saved, the prepared concrete engineering material is excellent in mechanical property, and the compressive strength of the concrete engineering material can reach 60 MPa or above after standard curing for 28 days.
本发明提供一种胶凝材料、全固废混凝土及其制备方法，所述胶凝材料以质量百分数计，包括以下组分：钢渣粉25～35％、矿渣粉45～55％、脱硫石膏粉10～15％，碱渣粉5～10％。本发明制备的胶凝材料利用碱渣粉与钢渣粉、矿渣粉、脱硫石膏之间的相互激发作用，充分发挥矿渣粉中硅氧四面体、铝氧四面体的潜在水硬活性和“复盐效应”，制备出可以水化硬化的胶凝材料，利用该胶凝材料替代水泥，与废砂、废石、水及减水剂混合制备获得全固废混凝土，不仅可以节约25～35％的原料成本，而且制得的混凝土工程材料力学性能优异，标准养护28天后其抗压强度可达60MPa以上。
Cementing material, all-solid waste concrete and preparation method of all-solid waste concrete
The invention provides a cementing material, all-solid waste concrete and a preparation method thereof. The cementing material comprises the following components in percentage by mass: 25-35% of steel slag powder, 45-55% of slag powder, 10-15% of desulfurized gypsum powder and 5-10% of alkaline residue powder. According to the cementing material prepared by the preparation method disclosed by the invention, the potential hydraulic activity and "double salt effect" of silica tetrahedrons and alumina tetrahedrons in the slag powder are fully exerted by utilizing the mutual excitation effect among the alkaline residue powder, the steel slag powder, the slag powder and the desulfurized gypsum, and the cementing material capable of being hydrated and hardened is prepared. The cementing material is used for replacing cement and is mixed with waste sand, waste rock, water and a water reducing agent to prepare the all-solid waste concrete. According to the technology, 25-35% of raw material cost can be saved, the prepared concrete engineering material is excellent in mechanical property, and the compressive strength of the concrete engineering material can reach 60 MPa or above after standard curing for 28 days.
本发明提供一种胶凝材料、全固废混凝土及其制备方法，所述胶凝材料以质量百分数计，包括以下组分：钢渣粉25～35％、矿渣粉45～55％、脱硫石膏粉10～15％，碱渣粉5～10％。本发明制备的胶凝材料利用碱渣粉与钢渣粉、矿渣粉、脱硫石膏之间的相互激发作用，充分发挥矿渣粉中硅氧四面体、铝氧四面体的潜在水硬活性和“复盐效应”，制备出可以水化硬化的胶凝材料，利用该胶凝材料替代水泥，与废砂、废石、水及减水剂混合制备获得全固废混凝土，不仅可以节约25～35％的原料成本，而且制得的混凝土工程材料力学性能优异，标准养护28天后其抗压强度可达60MPa以上。
Cementing material, all-solid waste concrete and preparation method of all-solid waste concrete
一种胶凝材料、全固废混凝土及其制备方法
ZHU FEI (Autor:in) / ZHANG YAO (Autor:in) / NIE HAIJIN (Autor:in) / ZHANG HAOHAO (Autor:in) / PANG LU (Autor:in) / SU JUNMING (Autor:in)
31.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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