Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of red mud-based bagasse fiber reinforced composite gel material
The invention relates to a preparation method of a red mud-based bagasse fiber reinforced composite gel material, which comprises the following steps: (1) drying red mud at 100 DEG C for 24 hours, grinding in a ball mill for 3 hours, and screening out powder with the particle size of 70-120 meshes for later use; (2) washing bagasse with water to remove impurities, drying the bagasse in a drying box at 50 DEG C for 24 hours, crushing the bagasse with a ball mill, sieving the crushed bagasse with a 100-mesh sieve, collecting lower-layer powder, and performing pretreatment on the bagasse powder and a dimethyl sulfoxide (DMSO)/LiCl solution; and (3) mixing the prepared bagasse with quantitative red mud and sodium silicate, adding the mixed solution into a reaction kettle, and reacting for 120 minutes under the conditions of 220 DEG C and 300 r/min. After the reaction is completed, carrying out solid-liquid separation, retaining supernate by using a sample tube, and briquetting filter residues; and (4) performing moisture detection, compressive strength detection, pore detection and 7-day maintenance detection on the pressed raw blocks. The utilization rate of the red mud is 100%, the utilization rate of the bagasse is 100%, the total porosity is about 20%, the proportion of macropores is 1%-5%, the proportion of micropores is 90% or above, and the compressive strength reaches 5 MPa or above within 7 days.
一种赤泥基蔗渣纤维增强复合凝胶材料的制备方法，工艺步骤为：（1）赤泥100℃下烘干24h，于球磨机中粉磨3h，筛出粒径70‑120目粉末待用；（2）甘蔗渣水洗除杂后于干燥箱中50℃烘干24 h，后用球磨机粉碎，过100目筛，收集下层粉末，蔗渣粉末与二甲基亚砜（DMSO）/LiCl溶液作用预处理；（3）将制备好的蔗渣与定量的赤泥、水玻璃混合，将混合液一同加入反应釜中，在220℃、300 r/min的条件下反应120 min。反应完成后，进行固液分离，上清液用试样管保留，滤渣进行压块；（4）压制的生块进行水分检测，抗压强度检测，孔隙检测、7天养护检测。本发明赤泥的利用率为100%，蔗渣利用率100%、总孔隙率20%左右，大孔占比1%‑5%，小孔占比率分别为90%以上，抗压强度7d达到5MPa以上。
Preparation method of red mud-based bagasse fiber reinforced composite gel material
The invention relates to a preparation method of a red mud-based bagasse fiber reinforced composite gel material, which comprises the following steps: (1) drying red mud at 100 DEG C for 24 hours, grinding in a ball mill for 3 hours, and screening out powder with the particle size of 70-120 meshes for later use; (2) washing bagasse with water to remove impurities, drying the bagasse in a drying box at 50 DEG C for 24 hours, crushing the bagasse with a ball mill, sieving the crushed bagasse with a 100-mesh sieve, collecting lower-layer powder, and performing pretreatment on the bagasse powder and a dimethyl sulfoxide (DMSO)/LiCl solution; and (3) mixing the prepared bagasse with quantitative red mud and sodium silicate, adding the mixed solution into a reaction kettle, and reacting for 120 minutes under the conditions of 220 DEG C and 300 r/min. After the reaction is completed, carrying out solid-liquid separation, retaining supernate by using a sample tube, and briquetting filter residues; and (4) performing moisture detection, compressive strength detection, pore detection and 7-day maintenance detection on the pressed raw blocks. The utilization rate of the red mud is 100%, the utilization rate of the bagasse is 100%, the total porosity is about 20%, the proportion of macropores is 1%-5%, the proportion of micropores is 90% or above, and the compressive strength reaches 5 MPa or above within 7 days.
一种赤泥基蔗渣纤维增强复合凝胶材料的制备方法，工艺步骤为：（1）赤泥100℃下烘干24h，于球磨机中粉磨3h，筛出粒径70‑120目粉末待用；（2）甘蔗渣水洗除杂后于干燥箱中50℃烘干24 h，后用球磨机粉碎，过100目筛，收集下层粉末，蔗渣粉末与二甲基亚砜（DMSO）/LiCl溶液作用预处理；（3）将制备好的蔗渣与定量的赤泥、水玻璃混合，将混合液一同加入反应釜中，在220℃、300 r/min的条件下反应120 min。反应完成后，进行固液分离，上清液用试样管保留，滤渣进行压块；（4）压制的生块进行水分检测，抗压强度检测，孔隙检测、7天养护检测。本发明赤泥的利用率为100%，蔗渣利用率100%、总孔隙率20%左右，大孔占比1%‑5%，小孔占比率分别为90%以上，抗压强度7d达到5MPa以上。
Preparation method of red mud-based bagasse fiber reinforced composite gel material
一种赤泥基蔗渣纤维增强复合凝胶材料的制备方法
XUAN XIAOXIN (Autor:in) / CHEN YANG (Autor:in) / ZHANG WEIGUANG (Autor:in) / CAO XUEJIAO (Autor:in) / WEN YUNFENG (Autor:in)
10.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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