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A platform for research: civil engineering, architecture and urbanism
Preparation method of concrete recycled aggregate
The invention belongs to the technical field of building materials. The invention relates to the field of concrete, in particular to a preparation method of concrete recycled aggregate. The preparation method comprises the following specific preparation steps: carrying out ball milling and mixing on coal gangue, and screening to obtain refined coal gangue with D50 of 3-5mm; the preparation method comprises the following steps: mixing 100-120 parts by weight of refined coal gangue, 3-5 parts by weight of an emulsifier and 80-100 parts by weight of water glass, pouring the mixture into a ball milling tank, carrying out wet ball milling reaction for 4-6 hours, discharging, filtering, washing, drying, scattering, roasting at low temperature, cooling and discharging to obtain the concrete recycled aggregate. Wherein the wet ball-milling reaction comprises the following steps: adding ball-milling beads according to the mass ratio of (32-35): 1 at room temperature, and carrying out wet ball-milling reaction under the conditions that the autorotation speed is 350-370r/min and the revolution speed is 220-230r/min; the low-temperature roasting comprises low-temperature roasting for 3-4 hours under the condition that the temperature is 185-190 DEG C.
本发明属于建筑材料技术领域。更具体地，涉及一种混凝土再生骨料的制备方法。本发明的具体制备步骤包括：将煤矸石球磨混合后，筛分，以得到D50为3‑5mm的细化煤矸石；按重量份数计，取100‑120份细化煤矸石，3‑5份乳化剂，80‑100份水玻璃，混合倒入球磨罐中，湿法球磨反应4‑6h后，出料，过滤，洗涤，干燥和打散后，低温焙烧，冷却，出料，即得混凝土再生骨料；其中，所述湿法球磨反应包括：于室温条件下，按照球料质量比为32‑35：1加入球磨珠，于自转转速为350‑370r/min，公转转速为220‑230r/min条件下，湿法球磨反应；所述低温焙烧包括：于温度为185‑190℃条件下，低温焙烧3‑4h。
Preparation method of concrete recycled aggregate
The invention belongs to the technical field of building materials. The invention relates to the field of concrete, in particular to a preparation method of concrete recycled aggregate. The preparation method comprises the following specific preparation steps: carrying out ball milling and mixing on coal gangue, and screening to obtain refined coal gangue with D50 of 3-5mm; the preparation method comprises the following steps: mixing 100-120 parts by weight of refined coal gangue, 3-5 parts by weight of an emulsifier and 80-100 parts by weight of water glass, pouring the mixture into a ball milling tank, carrying out wet ball milling reaction for 4-6 hours, discharging, filtering, washing, drying, scattering, roasting at low temperature, cooling and discharging to obtain the concrete recycled aggregate. Wherein the wet ball-milling reaction comprises the following steps: adding ball-milling beads according to the mass ratio of (32-35): 1 at room temperature, and carrying out wet ball-milling reaction under the conditions that the autorotation speed is 350-370r/min and the revolution speed is 220-230r/min; the low-temperature roasting comprises low-temperature roasting for 3-4 hours under the condition that the temperature is 185-190 DEG C.
本发明属于建筑材料技术领域。更具体地，涉及一种混凝土再生骨料的制备方法。本发明的具体制备步骤包括：将煤矸石球磨混合后，筛分，以得到D50为3‑5mm的细化煤矸石；按重量份数计，取100‑120份细化煤矸石，3‑5份乳化剂，80‑100份水玻璃，混合倒入球磨罐中，湿法球磨反应4‑6h后，出料，过滤，洗涤，干燥和打散后，低温焙烧，冷却，出料，即得混凝土再生骨料；其中，所述湿法球磨反应包括：于室温条件下，按照球料质量比为32‑35：1加入球磨珠，于自转转速为350‑370r/min，公转转速为220‑230r/min条件下，湿法球磨反应；所述低温焙烧包括：于温度为185‑190℃条件下，低温焙烧3‑4h。
Preparation method of concrete recycled aggregate
一种混凝土再生骨料的制备方法
WANG QIUHUA (author) / WANG WEI (author) / ZHANG XINPING (author)
2025-01-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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