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A platform for research: civil engineering, architecture and urbanism
High-strength aerated concrete block and preparation method thereof
The invention discloses a high-strength aerated concrete block. The invention discloses a preparation method of the high-strength aerated concrete block. The preparation method comprises the followingsteps: adding silicon carbide fibers into a sulfuric acid solution, soaking, filtering, washing, and adding into a polyvinyl alcohol aqueous solution to obtain pretreated silicon carbide fibers; feeding yttrium oxide powder, ethyl cellulose and 3-aminopropyltriethoxysilane into water, performing grinding and adding the mixture into the pretreated silicon carbide fiber, performing ultrasonic dispersion for 1-2 h at the temperature of 50-70 DEG C, performing spray drying, and obtaining a fiber toughening agent; mixing cement, fly ash, vitrified micro bubbles, expanded perlite, sand and a waterreducing agent, performing ball milling, adding construction waste, a fiber toughening agent and water in a stirring state, and performing uniform mixing so as to obtain a premix; adding lime powder into the premix, performing quick stirring, adding aluminum powder paste, performing continuous stirring, quickly pouring the mixed slurry into a building block mold, standing at 40-46 DEG C for 2-4 hours, and carrying out autoclaved curing to obtain the high-strength aerated concrete building block.
本发明公开了一种高强度加气混凝土砌块。本发明公开了上述高强度加气混凝土砌块的制备方法，包括：将碳化硅纤维加入至硫酸溶液中浸泡，过滤，洗涤，加入聚乙烯醇水溶液中得到预处理碳化硅纤维；将氧化钇粉末、乙基纤维素、3‑氨基丙基三乙氧基硅烷送入水中，研磨，加入至预处理碳化硅纤维中，50‑70℃超声分散1‑2h，喷雾干燥得到纤维增韧剂；将水泥、粉煤灰、玻化微珠、膨胀珍珠岩、砂、减水剂混合，球磨，搅拌状态下再加入建筑垃圾、纤维增韧剂、水混合均匀，得到预混料；向预混料中加入石灰粉快速搅拌，然后加入铝粉膏继续搅拌，将混合后的浆料迅速倒入砌块模具内，40‑46℃静置2‑4h，蒸压养护得到高强度加气混凝土砌块。
High-strength aerated concrete block and preparation method thereof
The invention discloses a high-strength aerated concrete block. The invention discloses a preparation method of the high-strength aerated concrete block. The preparation method comprises the followingsteps: adding silicon carbide fibers into a sulfuric acid solution, soaking, filtering, washing, and adding into a polyvinyl alcohol aqueous solution to obtain pretreated silicon carbide fibers; feeding yttrium oxide powder, ethyl cellulose and 3-aminopropyltriethoxysilane into water, performing grinding and adding the mixture into the pretreated silicon carbide fiber, performing ultrasonic dispersion for 1-2 h at the temperature of 50-70 DEG C, performing spray drying, and obtaining a fiber toughening agent; mixing cement, fly ash, vitrified micro bubbles, expanded perlite, sand and a waterreducing agent, performing ball milling, adding construction waste, a fiber toughening agent and water in a stirring state, and performing uniform mixing so as to obtain a premix; adding lime powder into the premix, performing quick stirring, adding aluminum powder paste, performing continuous stirring, quickly pouring the mixed slurry into a building block mold, standing at 40-46 DEG C for 2-4 hours, and carrying out autoclaved curing to obtain the high-strength aerated concrete building block.
本发明公开了一种高强度加气混凝土砌块。本发明公开了上述高强度加气混凝土砌块的制备方法，包括：将碳化硅纤维加入至硫酸溶液中浸泡，过滤，洗涤，加入聚乙烯醇水溶液中得到预处理碳化硅纤维；将氧化钇粉末、乙基纤维素、3‑氨基丙基三乙氧基硅烷送入水中，研磨，加入至预处理碳化硅纤维中，50‑70℃超声分散1‑2h，喷雾干燥得到纤维增韧剂；将水泥、粉煤灰、玻化微珠、膨胀珍珠岩、砂、减水剂混合，球磨，搅拌状态下再加入建筑垃圾、纤维增韧剂、水混合均匀，得到预混料；向预混料中加入石灰粉快速搅拌，然后加入铝粉膏继续搅拌，将混合后的浆料迅速倒入砌块模具内，40‑46℃静置2‑4h，蒸压养护得到高强度加气混凝土砌块。
High-strength aerated concrete block and preparation method thereof
一种高强度加气混凝土砌块及其制备方法
MENG MENG (author) / MENG WEI (author) / JIANG WENNAN (author) / GAO QIN (author) / YU YAWEN (author)
2021-01-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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