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A platform for research: civil engineering, architecture and urbanism
Method for preparing autoclaved aerated concrete block from phosphorus slag
The invention relates to the field of environment-friendly building materials, in particular to a method for preparing autoclaved aerated concrete blocks from phosphorus slag, which comprises the following steps: levigating the phosphorus slag, adjusting the alkalinity of slurry, adding an alkali activator, adding nano silicon dioxide into the slurry, raising the temperature of the slurry to 38 DEG C or above, adding a small amount of Portland cement, and fully stirring to obtain the autoclaved aerated concrete blocks. Forming mixed slurry; the slurry is subjected to gas generation, after gas generation is completed, the mixed slurry is put into a mold, the mold is transferred into a hot chamber at the temperature of 45-70 DEG C, standing is conducted for 4-6 h, a building block initial blank is formed, and the building block initial blank is taken out and demolded; the demolded initial blank of the building block is naturally stood to reach the steam curing strength, then the initial blank of the building block is transferred into a high-pressure still kettle, the aerated concrete building block is formed after curing, and by means of the method, the requirement for A5.0 strength can be met without using lime or by reducing the using amount of the lime.
本发明涉及环保建筑材料领域，具体涉及一种磷渣制备蒸压加气混凝土砌块的方法，通过对磷渣磨细处理，再调节浆料的碱度，加入碱激发剂，在浆料中加入纳米二氧化硅，并将浆料温度上升至38℃以上，加入少量硅酸盐水泥，并充分搅拌，形成混合浆料；对浆料进行发气，发气完成后，将混合浆料放入模具中后，转运到45～70℃的热室内静置4～6h形成砌块初坯，取出脱模；将脱模后的砌块初坯自然静置使其达到蒸养强度，再将砌块初坯转运到高压蒸压釜内，养护后形成加气混凝土砌块，通过上述方法可以不再使用石灰或减少石灰用量来达到A5.0强度的要求。
Method for preparing autoclaved aerated concrete block from phosphorus slag
The invention relates to the field of environment-friendly building materials, in particular to a method for preparing autoclaved aerated concrete blocks from phosphorus slag, which comprises the following steps: levigating the phosphorus slag, adjusting the alkalinity of slurry, adding an alkali activator, adding nano silicon dioxide into the slurry, raising the temperature of the slurry to 38 DEG C or above, adding a small amount of Portland cement, and fully stirring to obtain the autoclaved aerated concrete blocks. Forming mixed slurry; the slurry is subjected to gas generation, after gas generation is completed, the mixed slurry is put into a mold, the mold is transferred into a hot chamber at the temperature of 45-70 DEG C, standing is conducted for 4-6 h, a building block initial blank is formed, and the building block initial blank is taken out and demolded; the demolded initial blank of the building block is naturally stood to reach the steam curing strength, then the initial blank of the building block is transferred into a high-pressure still kettle, the aerated concrete building block is formed after curing, and by means of the method, the requirement for A5.0 strength can be met without using lime or by reducing the using amount of the lime.
本发明涉及环保建筑材料领域，具体涉及一种磷渣制备蒸压加气混凝土砌块的方法，通过对磷渣磨细处理，再调节浆料的碱度，加入碱激发剂，在浆料中加入纳米二氧化硅，并将浆料温度上升至38℃以上，加入少量硅酸盐水泥，并充分搅拌，形成混合浆料；对浆料进行发气，发气完成后，将混合浆料放入模具中后，转运到45～70℃的热室内静置4～6h形成砌块初坯，取出脱模；将脱模后的砌块初坯自然静置使其达到蒸养强度，再将砌块初坯转运到高压蒸压釜内，养护后形成加气混凝土砌块，通过上述方法可以不再使用石灰或减少石灰用量来达到A5.0强度的要求。
Method for preparing autoclaved aerated concrete block from phosphorus slag
一种磷渣制备蒸压加气混凝土砌块的方法
ZHU HAIBO (author) / SUN YIXUAN (author) / ZHANG QIUHONG (author) / GUO ZHENHU (author) / WANG ZHI (author) / HE XIAOLONG (author) / TAN BIN (author)
2024-08-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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