Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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 (Autor:in) / WANG WEI (Autor:in) / ZHANG XINPING (Autor:in)
07.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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