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A platform for research: civil engineering, architecture and urbanism
Ultra-high performance concrete material
The invention belongs to the technical field of cement-based materials, and particularly discloses an ultra-high performance concrete material, which is prepared from the following ingredients in parts by weight: 450 to 500 parts of quartz sand, 500 to 520 parts of cement, 25 to 15 parts of nanometer SiO2, 20 to 25 parts of microbead coal ash, 20 to 25 parts of silica fume, 12 to 18 parts of rubber powder, 2 to 5 parts of steel fibers, 2.5 to 3.0 parts of polycarboxylic acid water reducing agents, 0.5 to 1.0 part of cellulose ether, 0.15 to 0.20 part of plastic expanding agents and 0.25 to 0.35 part of defoaming agents. And 110 to 120 parts of water. By adopting the nano SiO2, the compressive strength and toughness of the UHPC can be remarkably improved, the flowability can be improved by adopting the microbead fly ash, and the compactness and anti-permeability of the UHPC can be improved by adopting the silica fume.
本发明属于水泥基材料技术领域，具体公开了一种超高性能混凝土材料，包括如下重量份的组分：石英砂450‑500份，水泥500‑520份，纳米SiO25‑15份，微珠粉煤灰20‑25份，硅灰20‑25份，胶粉12‑18份，钢纤维2‑5份，聚羧酸减水剂2.5‑3.0份，纤维素醚0.5‑1.0份，塑性膨胀剂0.15‑0.20份，消泡剂0.25‑0.35份，水110‑120份。本发明采用纳米SiO2，可以显著提高UHPC抗压强度和韧性，采用微珠粉煤灰可以提高流动性，采用硅灰可以增加UHPC密实性，提高抗渗性能。
Ultra-high performance concrete material
The invention belongs to the technical field of cement-based materials, and particularly discloses an ultra-high performance concrete material, which is prepared from the following ingredients in parts by weight: 450 to 500 parts of quartz sand, 500 to 520 parts of cement, 25 to 15 parts of nanometer SiO2, 20 to 25 parts of microbead coal ash, 20 to 25 parts of silica fume, 12 to 18 parts of rubber powder, 2 to 5 parts of steel fibers, 2.5 to 3.0 parts of polycarboxylic acid water reducing agents, 0.5 to 1.0 part of cellulose ether, 0.15 to 0.20 part of plastic expanding agents and 0.25 to 0.35 part of defoaming agents. And 110 to 120 parts of water. By adopting the nano SiO2, the compressive strength and toughness of the UHPC can be remarkably improved, the flowability can be improved by adopting the microbead fly ash, and the compactness and anti-permeability of the UHPC can be improved by adopting the silica fume.
本发明属于水泥基材料技术领域，具体公开了一种超高性能混凝土材料，包括如下重量份的组分：石英砂450‑500份，水泥500‑520份，纳米SiO25‑15份，微珠粉煤灰20‑25份，硅灰20‑25份，胶粉12‑18份，钢纤维2‑5份，聚羧酸减水剂2.5‑3.0份，纤维素醚0.5‑1.0份，塑性膨胀剂0.15‑0.20份，消泡剂0.25‑0.35份，水110‑120份。本发明采用纳米SiO2，可以显著提高UHPC抗压强度和韧性，采用微珠粉煤灰可以提高流动性，采用硅灰可以增加UHPC密实性，提高抗渗性能。
Ultra-high performance concrete material
一种超高性能混凝土材料
MA BINGYANG (author) / SHENG CHANGBO (author) / YANG YUN (author) / LIU TIANSHUN (author) / SONG YUANJIE (author)
2024-03-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021
Ultra High Performance Concrete
British Library Online Contents | 2005