A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of recycled aggregate, and dry-mixed mortar
The invention relates to a preparation method of recycled aggregate. The preparation method comprises the following steps: repeatedly crushing and refining construction waste, and screening to obtainparticles with the diameter of less than 30 mm; putting the particles into an eddy current sorting machine and a magnetic sorting machine, removing metal particles, and sorting to obtain coarse aggregate; crushing and refining the coarse aggregate into fine aggregate with the diameter of 0.5-5 mm; fully stirring and mixing the fine aggregate and a coupling agent diluted by alcohol, and enabling the alcohol to completely volatilize to obtain fine aggregate subjected to surface coupling treatment; and fully stirring and mixing the fine aggregate subjected to surface coupling treatment with polyethylene glycol dissolved in clear water, and heating and drying to obtain the recycled aggregate. The invention also relates to a dry-mixed mortar and a preparation method thereof. The construction waste is utilized, and waste is turned into valuables; and circular economy is developed, and sustainable development of the building mortar is realized.
本发明涉及一种再生骨料制备方法，包括以下步骤：将建筑垃圾进行反复破碎细化，筛选得到直径小于30mm的颗粒物；将颗粒物投入涡电流分选机和磁力分选机，剔除金属颗粒物，分选得到粗骨料；将粗骨料破碎细化至直径为0.5～5mm的细骨料；细骨料与经酒精稀释的偶联剂充分搅拌混合，待酒精完全挥发后，得到表面偶联处理的细骨料；将表面偶联处理的细骨料，与经清水溶解的聚乙二醇充分搅拌混合，加热干燥，得到再生骨料。本发明还涉及一种干混砂浆及其制备方法。本发明利用建筑垃圾，变废为宝；发展循环经济，实现建筑砂浆的可持续发展。
Preparation method of recycled aggregate, and dry-mixed mortar
The invention relates to a preparation method of recycled aggregate. The preparation method comprises the following steps: repeatedly crushing and refining construction waste, and screening to obtainparticles with the diameter of less than 30 mm; putting the particles into an eddy current sorting machine and a magnetic sorting machine, removing metal particles, and sorting to obtain coarse aggregate; crushing and refining the coarse aggregate into fine aggregate with the diameter of 0.5-5 mm; fully stirring and mixing the fine aggregate and a coupling agent diluted by alcohol, and enabling the alcohol to completely volatilize to obtain fine aggregate subjected to surface coupling treatment; and fully stirring and mixing the fine aggregate subjected to surface coupling treatment with polyethylene glycol dissolved in clear water, and heating and drying to obtain the recycled aggregate. The invention also relates to a dry-mixed mortar and a preparation method thereof. The construction waste is utilized, and waste is turned into valuables; and circular economy is developed, and sustainable development of the building mortar is realized.
本发明涉及一种再生骨料制备方法，包括以下步骤：将建筑垃圾进行反复破碎细化，筛选得到直径小于30mm的颗粒物；将颗粒物投入涡电流分选机和磁力分选机，剔除金属颗粒物，分选得到粗骨料；将粗骨料破碎细化至直径为0.5～5mm的细骨料；细骨料与经酒精稀释的偶联剂充分搅拌混合，待酒精完全挥发后，得到表面偶联处理的细骨料；将表面偶联处理的细骨料，与经清水溶解的聚乙二醇充分搅拌混合，加热干燥，得到再生骨料。本发明还涉及一种干混砂浆及其制备方法。本发明利用建筑垃圾，变废为宝；发展循环经济，实现建筑砂浆的可持续发展。
Preparation method of recycled aggregate, and dry-mixed mortar
一种再生骨料的制备方法及干混砂浆
HE LIJUN (author) / CHEN CHUZHI (author)
2020-06-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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