A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Lightweight low-shrinkage ultra-high performance concrete and preparation method thereof
The invention relates to lightweight low-shrinkage ultra-high performance concrete and a preparation method thereof. The concrete comprises the following components: 500-600kg/m < 3 > of cement, 130-180kg/m < 3 > of fly ash, 50-100kg/m < 3 > of silica fume, 600-800kg/m < 3 > of composite material crushed granular aggregate, 100-160kg/m < 3 > of copper-plated steel fiber, 20-50kg/m < 3 > of pottery sand, 20-30kg/m < 3 > of a water reducing agent, 5-20kg/m < 3 > of an expanding agent and 160-200kg/m < 3 > of water. The obtained ultra-high performance concrete has the advantages of light weight, high strength, low shrinkage and the like, and has high toughness and good working performance, volume stability and crack resistance; the prepared light low-shrinkage ultra-high performance concrete is wide in application range, and when the concrete is applied to large projects such as bridges and high-rise buildings, the dead weight of a concrete structure can be effectively reduced, and the bearing capacity and durability of the bridges are improved.
本发明涉及一种轻质低收缩超高性能混凝土及其制备方法，本发明的混凝土包括以下成分：500‑600kg/m3的水泥，130‑180kg/m3的粉煤灰、50‑100kg/m3的硅灰、600‑800kg/m3的复合材料破碎颗粒集料、100‑160kg/m3的铜镀钢纤维、20‑50kg/m3的陶砂、20‑30kg/m3的减水剂、膨胀剂5‑20kg/m3和160‑200kg/m3的水。本发明所得超高性能混凝土具有轻质、高强、低收缩等优点，且具有高韧性和良好的工作性能、体积稳定性能和抗裂性能；本发明制备的轻质低收缩超高性能混凝土适应范围广泛，在应用于桥梁、高层建筑等大型工程时，可有效减轻混凝土结构自重，提高桥梁承载能力和耐久性。
Lightweight low-shrinkage ultra-high performance concrete and preparation method thereof
The invention relates to lightweight low-shrinkage ultra-high performance concrete and a preparation method thereof. The concrete comprises the following components: 500-600kg/m < 3 > of cement, 130-180kg/m < 3 > of fly ash, 50-100kg/m < 3 > of silica fume, 600-800kg/m < 3 > of composite material crushed granular aggregate, 100-160kg/m < 3 > of copper-plated steel fiber, 20-50kg/m < 3 > of pottery sand, 20-30kg/m < 3 > of a water reducing agent, 5-20kg/m < 3 > of an expanding agent and 160-200kg/m < 3 > of water. The obtained ultra-high performance concrete has the advantages of light weight, high strength, low shrinkage and the like, and has high toughness and good working performance, volume stability and crack resistance; the prepared light low-shrinkage ultra-high performance concrete is wide in application range, and when the concrete is applied to large projects such as bridges and high-rise buildings, the dead weight of a concrete structure can be effectively reduced, and the bearing capacity and durability of the bridges are improved.
本发明涉及一种轻质低收缩超高性能混凝土及其制备方法，本发明的混凝土包括以下成分：500‑600kg/m3的水泥，130‑180kg/m3的粉煤灰、50‑100kg/m3的硅灰、600‑800kg/m3的复合材料破碎颗粒集料、100‑160kg/m3的铜镀钢纤维、20‑50kg/m3的陶砂、20‑30kg/m3的减水剂、膨胀剂5‑20kg/m3和160‑200kg/m3的水。本发明所得超高性能混凝土具有轻质、高强、低收缩等优点，且具有高韧性和良好的工作性能、体积稳定性能和抗裂性能；本发明制备的轻质低收缩超高性能混凝土适应范围广泛，在应用于桥梁、高层建筑等大型工程时，可有效减轻混凝土结构自重，提高桥梁承载能力和耐久性。
Lightweight low-shrinkage ultra-high performance concrete and preparation method thereof
一种轻质低收缩超高性能混凝土及其制备方法
ZHOU MIN (author) / YANG TENGYU (author) / SHU BENAN (author) / LI YONGLING (author) / LI JINHUI (author) / DING QINGJUN (author)
2022-05-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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