A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recycled concrete with high strength
The invention relates to recycled concrete with high strength. The recycled concrete comprises the following components in parts by mass: 45-65 parts of recycled aggregate, 25-35 parts of fly ash, 65-75 parts of cement, and 0.3-0.5 part of a polycarboxylate superplasticizer. The recycled aggregate disclosed by the invention has a good synergistic effect with the fly ash and the polycarboxylate superplasticizer. Specifically, it is accidentally found that the gaps of the recycled aggregate can be evenly filled with the fly ash, and thus the water absorption rate of the recycled aggregate is greatly reduced. Besides, the recycled aggregate, the fly ash and the polycarboxylate superplasticizer are good in compatibility, so that the mixed recycled concrete is very uniform in texture, and the phenomenon of weak mechanical strength is avoided.
本发明涉及一种具有高强度的再生混凝土，包括如下质量份数的成分：再生骨料45‑65份；粉煤灰25‑35份；水泥65‑75份；聚羧酸减水剂0.3‑0.5份。本发明所述的再生骨料，和粉煤灰以及聚羧酸减水剂具有良好的协同效应。具体地，令人意外的发现，粉煤灰可以均匀地填充在再生骨料的空隙中，从而极大地降低了再生骨料的吸水率；另外，再生骨料、粉煤灰和聚羧酸减水剂的相容性良好，因此混合后的再生混凝土质地非常均匀，不会出现力学强度薄弱的现象。
Recycled concrete with high strength
The invention relates to recycled concrete with high strength. The recycled concrete comprises the following components in parts by mass: 45-65 parts of recycled aggregate, 25-35 parts of fly ash, 65-75 parts of cement, and 0.3-0.5 part of a polycarboxylate superplasticizer. The recycled aggregate disclosed by the invention has a good synergistic effect with the fly ash and the polycarboxylate superplasticizer. Specifically, it is accidentally found that the gaps of the recycled aggregate can be evenly filled with the fly ash, and thus the water absorption rate of the recycled aggregate is greatly reduced. Besides, the recycled aggregate, the fly ash and the polycarboxylate superplasticizer are good in compatibility, so that the mixed recycled concrete is very uniform in texture, and the phenomenon of weak mechanical strength is avoided.
本发明涉及一种具有高强度的再生混凝土，包括如下质量份数的成分：再生骨料45‑65份；粉煤灰25‑35份；水泥65‑75份；聚羧酸减水剂0.3‑0.5份。本发明所述的再生骨料，和粉煤灰以及聚羧酸减水剂具有良好的协同效应。具体地，令人意外的发现，粉煤灰可以均匀地填充在再生骨料的空隙中，从而极大地降低了再生骨料的吸水率；另外，再生骨料、粉煤灰和聚羧酸减水剂的相容性良好，因此混合后的再生混凝土质地非常均匀，不会出现力学强度薄弱的现象。
Recycled concrete with high strength
一种具有高强度的再生混凝土
TANG QIANG (author) / WANG LIANKUN (author) / YANG HUIXIAN (author)
2020-12-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024