Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing concrete from concrete wastewater
The invention relates to the technical field of buildings, in particular to a method for preparing concrete by using concrete wastewater, which comprises the following steps: S1, filtering and separating the concrete wastewater to obtain filtrate to be treated and filter residues; s2, the filtrate to be treated is subjected to chloride ion desorption treatment, and recycled filtrate subjected to chloride ion desorption is obtained; s3, uniformly re-mixing the reuse filtrate after the chloride ions are desorbed with the filter residues to obtain mixing reuse water; s4, the mixed water, the cement, the coarse aggregate and the fine aggregate are stirred, and air is introduced into the stirring shaft in the stirring process, so that airflow sprayed outwards is generated on the stirring shaft and impacts materials in the stirring machine; s5, adding the nano material and the modified fly ash into the stirrer, continuously stirring, then adding the water reducing agent into the materials, and continuously stirring until the materials are uniformly mixed, so as to obtain concrete; compared with the prior art, the anti-seepage performance of the concrete can be improved, and the wear resistance of the concrete can also be improved.
本发明涉及建筑技术领域，尤其涉及一种利用混凝土废水制备混凝土的方法，包括以下步骤：S1、对混凝土废水进行过滤分离，得到待处理滤液和滤渣；S2、对待处理滤液进行氯离子脱附处理，得到脱附氯离子后的回用滤液；S3、将脱附氯离子后的回用滤液与滤渣重新混合均匀后，得到拌制回用水；S4、将混合水、水泥、粗骨料和细骨料搅拌，搅拌过程中向搅拌轴内通气，以使得搅拌轴上产生向外喷出的气流并冲击搅拌机内的物料；S5、将纳米材料和改性粉煤灰投加到搅拌机中并继续搅拌，之后再向物料中投入减水剂，继续搅拌直至物料混合均匀后，即得混凝土；相比于现有技术，本发明不仅可以改善混凝土的抗渗性能，而且还能提高其耐磨性能。
Method for preparing concrete from concrete wastewater
The invention relates to the technical field of buildings, in particular to a method for preparing concrete by using concrete wastewater, which comprises the following steps: S1, filtering and separating the concrete wastewater to obtain filtrate to be treated and filter residues; s2, the filtrate to be treated is subjected to chloride ion desorption treatment, and recycled filtrate subjected to chloride ion desorption is obtained; s3, uniformly re-mixing the reuse filtrate after the chloride ions are desorbed with the filter residues to obtain mixing reuse water; s4, the mixed water, the cement, the coarse aggregate and the fine aggregate are stirred, and air is introduced into the stirring shaft in the stirring process, so that airflow sprayed outwards is generated on the stirring shaft and impacts materials in the stirring machine; s5, adding the nano material and the modified fly ash into the stirrer, continuously stirring, then adding the water reducing agent into the materials, and continuously stirring until the materials are uniformly mixed, so as to obtain concrete; compared with the prior art, the anti-seepage performance of the concrete can be improved, and the wear resistance of the concrete can also be improved.
本发明涉及建筑技术领域，尤其涉及一种利用混凝土废水制备混凝土的方法，包括以下步骤：S1、对混凝土废水进行过滤分离，得到待处理滤液和滤渣；S2、对待处理滤液进行氯离子脱附处理，得到脱附氯离子后的回用滤液；S3、将脱附氯离子后的回用滤液与滤渣重新混合均匀后，得到拌制回用水；S4、将混合水、水泥、粗骨料和细骨料搅拌，搅拌过程中向搅拌轴内通气，以使得搅拌轴上产生向外喷出的气流并冲击搅拌机内的物料；S5、将纳米材料和改性粉煤灰投加到搅拌机中并继续搅拌，之后再向物料中投入减水剂，继续搅拌直至物料混合均匀后，即得混凝土；相比于现有技术，本发明不仅可以改善混凝土的抗渗性能，而且还能提高其耐磨性能。
Method for preparing concrete from concrete wastewater
一种利用混凝土废水制备混凝土的方法
WANG XIN (Autor:in) / YANG JIANNING (Autor:in) / LIU YAWEN (Autor:in) / WANG XIAOMING (Autor:in) / WANG SHAOZE (Autor:in)
05.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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