Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reinforced waste concrete recycled aggregate and preparation method of recycled concrete
The invention discloses a reinforced waste concrete recycled aggregate and a recycled concrete preparation method, 5-10 parts of a waste diatomite filter aid, 2.5-5 parts of water glass, 50 parts of water and 85-92.5 parts of ordinary Portland cement are mixed to prepare reinforced slurry, and then the reinforced slurry is coated on the waste concrete recycled aggregate to prepare the reinforced waste concrete recycled aggregate. The method comprises the following steps: (1) preparing recycled concrete from 306-360 parts of ordinary Portland cement, 1150-1200 parts of the reinforced waste concrete recycled aggregate in claim 5, 700-750 parts of natural river sand, 1.8-2.88 parts of a polycarboxylic acid water reducer, 18-54 parts of a waste diatomite filter aid and 140-180 parts of water; compared with common waste concrete recycled aggregate, the reinforced waste concrete recycled aggregate has the advantages that the water absorption rate and the crushing index are reduced, and the modified recycled concrete has better mechanical property and durability. The preparation method of the recycled concrete has the advantages that the waste concrete recycled aggregate is reinforced, and the mechanical property and chloride ion erosion resistance of the recycled concrete are improved.
本发明公开了一种强化废混凝土再生骨料及再生混凝土制备方法，将废弃硅藻土助滤剂5~10份、水玻璃2.5~5份、水50份、普通硅酸盐水泥85~92.5份经混合制成强化浆液，接着将该强化浆液涂覆在废混凝土再生骨料上即制得所述强化废混凝土再生骨料。（1）按普通硅酸盐水泥306~360份、权利要求5所述的强化废混凝土再生骨料1150~1200份、天然河砂700~750份、聚羧酸减水剂1.8~2.88份、废弃硅藻土助滤剂18~54份、水140~180份制备再生混凝土。所述强化废混凝土再生骨料与普通废混凝土再生骨料相比吸水率及压碎指标降低，改性得到的再生混凝土具有更好的力学性能和耐久性能。本发明的再生混凝土制备方法，具有强化废混凝土再生骨料、提高再生混凝土力学性能和抗氯离子侵蚀性能的优点。
Reinforced waste concrete recycled aggregate and preparation method of recycled concrete
The invention discloses a reinforced waste concrete recycled aggregate and a recycled concrete preparation method, 5-10 parts of a waste diatomite filter aid, 2.5-5 parts of water glass, 50 parts of water and 85-92.5 parts of ordinary Portland cement are mixed to prepare reinforced slurry, and then the reinforced slurry is coated on the waste concrete recycled aggregate to prepare the reinforced waste concrete recycled aggregate. The method comprises the following steps: (1) preparing recycled concrete from 306-360 parts of ordinary Portland cement, 1150-1200 parts of the reinforced waste concrete recycled aggregate in claim 5, 700-750 parts of natural river sand, 1.8-2.88 parts of a polycarboxylic acid water reducer, 18-54 parts of a waste diatomite filter aid and 140-180 parts of water; compared with common waste concrete recycled aggregate, the reinforced waste concrete recycled aggregate has the advantages that the water absorption rate and the crushing index are reduced, and the modified recycled concrete has better mechanical property and durability. The preparation method of the recycled concrete has the advantages that the waste concrete recycled aggregate is reinforced, and the mechanical property and chloride ion erosion resistance of the recycled concrete are improved.
本发明公开了一种强化废混凝土再生骨料及再生混凝土制备方法，将废弃硅藻土助滤剂5~10份、水玻璃2.5~5份、水50份、普通硅酸盐水泥85~92.5份经混合制成强化浆液，接着将该强化浆液涂覆在废混凝土再生骨料上即制得所述强化废混凝土再生骨料。（1）按普通硅酸盐水泥306~360份、权利要求5所述的强化废混凝土再生骨料1150~1200份、天然河砂700~750份、聚羧酸减水剂1.8~2.88份、废弃硅藻土助滤剂18~54份、水140~180份制备再生混凝土。所述强化废混凝土再生骨料与普通废混凝土再生骨料相比吸水率及压碎指标降低，改性得到的再生混凝土具有更好的力学性能和耐久性能。本发明的再生混凝土制备方法，具有强化废混凝土再生骨料、提高再生混凝土力学性能和抗氯离子侵蚀性能的优点。
Reinforced waste concrete recycled aggregate and preparation method of recycled concrete
一种强化废混凝土再生骨料及再生混凝土制备方法
ZHANG YUPING (Autor:in) / YANG MING (Autor:in) / WAN MENGTAO (Autor:in) / ZHUANG JIAFENG (Autor:in) / LU JIE (Autor:in) / ZHANG JINGBO (Autor:in) / ZHANG HONGRU (Autor:in) / WU CHAOYUAN (Autor:in) / LONG HAO (Autor:in) / YANG HONGQUAN (Autor:in)
09.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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