Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation process of recycled concrete aggregate
The invention discloses a preparation process of recycled concrete aggregate, and relates to the technical field of building materials. The method comprises the following steps: pre-treating the obtained recycled concrete aggregate, namely removing impurities and crushing the aggregate to obtain crushed aggregate; the obtained crushed aggregate is subjected to graded screening, specifically, a three-stage screening mode is adopted, and then three-stage aggregate is obtained; in the aggregate grading screening process, dust on the surface of the aggregate is blown away through wind power; cleaning the obtained crushed aggregate to further remove residual dust and acid liquor on the surface of the aggregate, and standing and drying for 2.5-3.5 hours after cleaning; and drying to prepare the required recycled concrete aggregate. The recycled concrete aggregate is subjected to multi-stage treatment, the treatment completion degree is higher, meanwhile, the concrete aggregate is subjected to specification classification in a three-stage screening mode, the concrete aggregate with different sizes can be effectively utilized, and the utilization efficiency is high.
本发明公开了一种再生混凝土骨料的制备工艺，涉及建筑材料技术领域。本发明包括如下步骤：对得到的再生混凝土骨料进行预处理，包括杂质去除和骨料破碎，得到破碎骨料；得到的破碎骨料进行分级筛分，具体采用三级筛分的方式，后分别得到三级骨料；骨料分级筛分过程中利用风力对骨料表面微尘进行吹除；对得到的破碎骨料进行清洗，进一步去除骨料表面的残余灰尘及酸液，清洗后静置干燥2.5‑3.5h；干燥完成后即达成所需再生混凝土骨料的制备。本发明通过对再生混凝土骨料进行多级化处理，处理完成度更高，同时采用三级分筛的方式对混凝土骨料进行规格分类，使不同体积大小的混凝土骨料均能得到有效利用，利用效率高。
Preparation process of recycled concrete aggregate
The invention discloses a preparation process of recycled concrete aggregate, and relates to the technical field of building materials. The method comprises the following steps: pre-treating the obtained recycled concrete aggregate, namely removing impurities and crushing the aggregate to obtain crushed aggregate; the obtained crushed aggregate is subjected to graded screening, specifically, a three-stage screening mode is adopted, and then three-stage aggregate is obtained; in the aggregate grading screening process, dust on the surface of the aggregate is blown away through wind power; cleaning the obtained crushed aggregate to further remove residual dust and acid liquor on the surface of the aggregate, and standing and drying for 2.5-3.5 hours after cleaning; and drying to prepare the required recycled concrete aggregate. The recycled concrete aggregate is subjected to multi-stage treatment, the treatment completion degree is higher, meanwhile, the concrete aggregate is subjected to specification classification in a three-stage screening mode, the concrete aggregate with different sizes can be effectively utilized, and the utilization efficiency is high.
本发明公开了一种再生混凝土骨料的制备工艺，涉及建筑材料技术领域。本发明包括如下步骤：对得到的再生混凝土骨料进行预处理，包括杂质去除和骨料破碎，得到破碎骨料；得到的破碎骨料进行分级筛分，具体采用三级筛分的方式，后分别得到三级骨料；骨料分级筛分过程中利用风力对骨料表面微尘进行吹除；对得到的破碎骨料进行清洗，进一步去除骨料表面的残余灰尘及酸液，清洗后静置干燥2.5‑3.5h；干燥完成后即达成所需再生混凝土骨料的制备。本发明通过对再生混凝土骨料进行多级化处理，处理完成度更高，同时采用三级分筛的方式对混凝土骨料进行规格分类，使不同体积大小的混凝土骨料均能得到有效利用，利用效率高。
Preparation process of recycled concrete aggregate
一种再生混凝土骨料的制备工艺
DU QIANQIAN (Autor:in) / DUAN CHANGQING (Autor:in) / ZHANG LIANXIANG (Autor:in) / WANG HUI (Autor:in) / FAN YANAN (Autor:in) / LIU ZHIHONG (Autor:in) / LIANG GUOQI (Autor:in)
22.12.2023
Patent
Elektronische Ressource
Chinesisch
Concrete recycled aggregate and preparation process thereof
| Europäisches Patentamt | 2021
Preparation method of mixed recycled aggregate concrete and mixed recycled aggregate concrete
| Europäisches Patentamt | 2023