A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-compacting concrete and tunnel vault pouring treatment method
The invention relates to the technical field of concrete materials, in particular to self-compacting concrete and a tunnel vault pouring treatment method. The self-compacting concrete provided by the embodiment of the invention comprises the following components in parts by weight: 288-312 parts of cement; 192 to 208 parts of fly ash; 774 to 793 parts of machine-made sand; 838 to 859 parts of broken stone; 5.76 to 6.24 parts of a water reducing agent; and 168 parts of water. The self-compacting concrete provided by the embodiment of the invention has good self-compacting property, secondary grouting is not needed, the quality defect of tunnel vault void is avoided, the construction cost is reduced, and the construction speed is increased.
本发明涉及混凝土材料技术领域，尤其涉及一种自密实混凝土及隧道拱顶浇筑处理方法。本发明实施例提供的自密实混凝土包括重量份数分别为：288‑312份的水泥；192‑208份的粉煤灰；774‑793份的机制砂；838‑859份的碎石；5.76‑6.24份的减水剂；以及168份的水。本发明实施例提供的自密实混凝土具有良好的自密实性，无需二次注浆，避免了产生隧道拱顶脱空的质量缺陷，降低了建设成本，提高了施工速度。
Self-compacting concrete and tunnel vault pouring treatment method
The invention relates to the technical field of concrete materials, in particular to self-compacting concrete and a tunnel vault pouring treatment method. The self-compacting concrete provided by the embodiment of the invention comprises the following components in parts by weight: 288-312 parts of cement; 192 to 208 parts of fly ash; 774 to 793 parts of machine-made sand; 838 to 859 parts of broken stone; 5.76 to 6.24 parts of a water reducing agent; and 168 parts of water. The self-compacting concrete provided by the embodiment of the invention has good self-compacting property, secondary grouting is not needed, the quality defect of tunnel vault void is avoided, the construction cost is reduced, and the construction speed is increased.
本发明涉及混凝土材料技术领域，尤其涉及一种自密实混凝土及隧道拱顶浇筑处理方法。本发明实施例提供的自密实混凝土包括重量份数分别为：288‑312份的水泥；192‑208份的粉煤灰；774‑793份的机制砂；838‑859份的碎石；5.76‑6.24份的减水剂；以及168份的水。本发明实施例提供的自密实混凝土具有良好的自密实性，无需二次注浆，避免了产生隧道拱顶脱空的质量缺陷，降低了建设成本，提高了施工速度。
Self-compacting concrete and tunnel vault pouring treatment method
自密实混凝土及隧道拱顶浇筑处理方法
LIANG XIAOJIE (author) / WANG WENHONG (author) / LIANG XIANMING (author) / LIU BING (author) / GENG JINBO (author) / ZHENG BINGXIN (author)
2023-08-29
Patent
Electronic Resource
Chinese
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