Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing recycled concrete from construction wastes
The invention provides a method for preparing recycled concrete from building wastes, and belongs to the technical field of concrete preparation. The method comprises the following steps: firstly, cracking waste concrete blocks, then grinding to obtain concrete blocks with the particle size of 4-6 mm, and carrying out acid liquor treatment and cement slurry treatment to obtain recycled concrete aggregate; and mixing and stirring the recycled concrete aggregate with broken stone, cement, quartz sand, steel slag, water and a water reducing agent to obtain the recycled concrete. According to the invention, resource utilization of the building waste concrete blocks and the steel slag is realized, the water absorption rate of the recycled concrete aggregate is obviously reduced, and the strength of the recycled concrete is further improved.
本发明提供了一种利用建筑废弃物制备再生混凝土的方法，属于混凝土制备技术领域。本发明首先将废弃混凝土块敲碎，然后研磨得到粒径为4～6mm的混凝土块，经过酸液处理以及水泥浆液处理，得到再生混凝土骨料；将再生混凝土骨料与碎石、水泥、石英砂、钢渣、水、减水剂混合搅拌，得到本发明再生混凝土。本发明不仅实现了建筑废弃物混凝土块以及钢渣的资源化利用，同时明显降低了再生混凝土骨料的吸水率，进一步提高了再生混凝土强度。
Method for preparing recycled concrete from construction wastes
The invention provides a method for preparing recycled concrete from building wastes, and belongs to the technical field of concrete preparation. The method comprises the following steps: firstly, cracking waste concrete blocks, then grinding to obtain concrete blocks with the particle size of 4-6 mm, and carrying out acid liquor treatment and cement slurry treatment to obtain recycled concrete aggregate; and mixing and stirring the recycled concrete aggregate with broken stone, cement, quartz sand, steel slag, water and a water reducing agent to obtain the recycled concrete. According to the invention, resource utilization of the building waste concrete blocks and the steel slag is realized, the water absorption rate of the recycled concrete aggregate is obviously reduced, and the strength of the recycled concrete is further improved.
本发明提供了一种利用建筑废弃物制备再生混凝土的方法，属于混凝土制备技术领域。本发明首先将废弃混凝土块敲碎，然后研磨得到粒径为4～6mm的混凝土块，经过酸液处理以及水泥浆液处理，得到再生混凝土骨料；将再生混凝土骨料与碎石、水泥、石英砂、钢渣、水、减水剂混合搅拌，得到本发明再生混凝土。本发明不仅实现了建筑废弃物混凝土块以及钢渣的资源化利用，同时明显降低了再生混凝土骨料的吸水率，进一步提高了再生混凝土强度。
Method for preparing recycled concrete from construction wastes
一种利用建筑废弃物制备再生混凝土的方法
LI LONGGANG (Autor:in) / MA ZHIQIANG (Autor:in) / WANG ZHIYONG (Autor:in) / XIAO SHUYUN (Autor:in)
11.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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