Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Solid waste utilization superfine mineral powder cement paste and preparation method thereof
The invention discloses a solid waste utilization superfine mineral powder cement paste and a preparation method thereof, and the preparation method comprises the following steps: (1) carrying out ball milling on dried industrial waste slag micro powder to obtain active slag superfine mineral powder; (2) adding sodium hydroxide into water glass, and stirring to obtain a binary compound alkali activator; then adding anhydrous calcium sulfate, carrying out ultrasonic treatment and stirring treatment, and aging to obtain a ternary composite alkali activator for later use; (3) uniformly mixing and stirring water, cement, the active slag superfine mineral powder and the ternary composite alkali activator to obtain cement paste; and (4) injecting the cement paste into a forming mold, compacting, striking off, curing, removing the mold, and curing again to obtain the superfine mineral powder cement paste. The industrial waste slag is prepared into the superfine mineral powder to replace part of cement to serve as a cementing material, the prepared cement paste is good in comprehensive performance such as flowability and compressive strength, the utilization rate of the slag micro powder is increased, and economic and environmental protection double benefits are achieved.
本发明公开了一种固废利用超细矿粉水泥净浆及其制备方法，制备方法包括：(1)将经过烘干后的工业废料矿渣微粉进行球磨，得活性矿渣超细矿粉；(2)将氢氧化钠加入到水玻璃中搅拌，得二元复合碱激发剂；随后再加入无水硫酸钙，经超声、搅拌处理后陈化，得三元复合碱激发剂，备用；(3)将水、水泥、活性矿渣超细矿粉和三元复合碱激发剂混合搅拌均匀，得水泥浆体；(4)水泥浆体注入成型模具中，密实处理后刮平，养护后拆模，再次养护，即得超细矿粉水泥净浆。本发明将工业废料矿渣制备成超细矿粉来替代部分水泥作为胶凝材料，制得的水泥净浆流动性、抗压强度等综合性能好，提高了矿渣微粉的利用率，具有经济和环境保护双重效益。
Solid waste utilization superfine mineral powder cement paste and preparation method thereof
The invention discloses a solid waste utilization superfine mineral powder cement paste and a preparation method thereof, and the preparation method comprises the following steps: (1) carrying out ball milling on dried industrial waste slag micro powder to obtain active slag superfine mineral powder; (2) adding sodium hydroxide into water glass, and stirring to obtain a binary compound alkali activator; then adding anhydrous calcium sulfate, carrying out ultrasonic treatment and stirring treatment, and aging to obtain a ternary composite alkali activator for later use; (3) uniformly mixing and stirring water, cement, the active slag superfine mineral powder and the ternary composite alkali activator to obtain cement paste; and (4) injecting the cement paste into a forming mold, compacting, striking off, curing, removing the mold, and curing again to obtain the superfine mineral powder cement paste. The industrial waste slag is prepared into the superfine mineral powder to replace part of cement to serve as a cementing material, the prepared cement paste is good in comprehensive performance such as flowability and compressive strength, the utilization rate of the slag micro powder is increased, and economic and environmental protection double benefits are achieved.
本发明公开了一种固废利用超细矿粉水泥净浆及其制备方法，制备方法包括：(1)将经过烘干后的工业废料矿渣微粉进行球磨，得活性矿渣超细矿粉；(2)将氢氧化钠加入到水玻璃中搅拌，得二元复合碱激发剂；随后再加入无水硫酸钙，经超声、搅拌处理后陈化，得三元复合碱激发剂，备用；(3)将水、水泥、活性矿渣超细矿粉和三元复合碱激发剂混合搅拌均匀，得水泥浆体；(4)水泥浆体注入成型模具中，密实处理后刮平，养护后拆模，再次养护，即得超细矿粉水泥净浆。本发明将工业废料矿渣制备成超细矿粉来替代部分水泥作为胶凝材料，制得的水泥净浆流动性、抗压强度等综合性能好，提高了矿渣微粉的利用率，具有经济和环境保护双重效益。
Solid waste utilization superfine mineral powder cement paste and preparation method thereof
一种固废利用超细矿粉水泥净浆及其制备方法
ZHANG YONGLIANG (Autor:in) / ZOU HANG (Autor:in) / HAI DECHEN (Autor:in) / LI HAIFENG (Autor:in) / LI SHENGJUN (Autor:in) / LI SENBING (Autor:in)
19.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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