Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
C100 self-compacting ultra-high performance concrete and preparation method thereof
The invention discloses C100 self-compacting ultra-high performance concrete and a preparation method thereof. The C100 self-compacting ultra-high performance concrete is prepared from the following components in parts by mass: 500 to 600 parts of mud, 40 to 60 parts of a viscosity modifier, 70 to 90 parts of mineral powder, 60 to 100 parts of silica fume, 10 to 30 parts of an expanding agent, 600 to 650 parts of sand, 1000 to 1200 parts of gravel, 18 to 23 parts of a water reducing agent, 125 to 140 parts of water and 20 to 50 parts of steel fiber. According to the C100 self-compacting ultra-high performance concrete disclosed by the invention, all the components are scientifically selected and proportioned, so that the self-compacting property of the concrete is improved; besides, the special composite admixture composed of the viscosity modifier, the mineral powder, the silica fume and the expanding agent is high in activity and low in water demand, and it is ensured that the strength of the concrete is stably increased; and the glue material consumption, the water-glue ratio and the sand ratio are reasonable, and the viscosity of the concrete is reduced; finally, the steel fiber and the expanding agent have the effects of resisting cracking, reducing self-constriction of the concrete and the like, and the special composite admixture has the effect of replacing part of cement to reduce hydration heat release of the concrete, so that the cracking risk of the concrete is effectively reduced.
本发明公开一种C100自密实超高性能混凝土及其制备方法，所述C100自密实超高性能混凝土包括以下质量份数的组分：泥500～600份、粘性改良剂40～60份、矿粉70～90份、硅灰60～100份、膨胀剂10～30份、砂600～650份、碎石1000～1200份、减水剂18～23份、水125～140份以及钢纤维20～50份。本发明的C100自密实超高性能混凝土，各组分选材和配比科学，提高混凝土的自密实性；粘性改良剂、矿粉、硅灰以及膨胀剂组成的专用复合掺合料活性高、需水量低，确保混凝土强度平稳增长；胶材用量、水胶比以及砂率合理，降低混凝土的粘度；钢纤维和膨胀剂起到抗裂及减少混凝土自收缩等作用，专用复合掺合料起到替代部分水泥以减少混凝土的水化放热的作用，进而有效降低混凝土的开裂风险。
C100 self-compacting ultra-high performance concrete and preparation method thereof
The invention discloses C100 self-compacting ultra-high performance concrete and a preparation method thereof. The C100 self-compacting ultra-high performance concrete is prepared from the following components in parts by mass: 500 to 600 parts of mud, 40 to 60 parts of a viscosity modifier, 70 to 90 parts of mineral powder, 60 to 100 parts of silica fume, 10 to 30 parts of an expanding agent, 600 to 650 parts of sand, 1000 to 1200 parts of gravel, 18 to 23 parts of a water reducing agent, 125 to 140 parts of water and 20 to 50 parts of steel fiber. According to the C100 self-compacting ultra-high performance concrete disclosed by the invention, all the components are scientifically selected and proportioned, so that the self-compacting property of the concrete is improved; besides, the special composite admixture composed of the viscosity modifier, the mineral powder, the silica fume and the expanding agent is high in activity and low in water demand, and it is ensured that the strength of the concrete is stably increased; and the glue material consumption, the water-glue ratio and the sand ratio are reasonable, and the viscosity of the concrete is reduced; finally, the steel fiber and the expanding agent have the effects of resisting cracking, reducing self-constriction of the concrete and the like, and the special composite admixture has the effect of replacing part of cement to reduce hydration heat release of the concrete, so that the cracking risk of the concrete is effectively reduced.
本发明公开一种C100自密实超高性能混凝土及其制备方法，所述C100自密实超高性能混凝土包括以下质量份数的组分：泥500～600份、粘性改良剂40～60份、矿粉70～90份、硅灰60～100份、膨胀剂10～30份、砂600～650份、碎石1000～1200份、减水剂18～23份、水125～140份以及钢纤维20～50份。本发明的C100自密实超高性能混凝土，各组分选材和配比科学，提高混凝土的自密实性；粘性改良剂、矿粉、硅灰以及膨胀剂组成的专用复合掺合料活性高、需水量低，确保混凝土强度平稳增长；胶材用量、水胶比以及砂率合理，降低混凝土的粘度；钢纤维和膨胀剂起到抗裂及减少混凝土自收缩等作用，专用复合掺合料起到替代部分水泥以减少混凝土的水化放热的作用，进而有效降低混凝土的开裂风险。
C100 self-compacting ultra-high performance concrete and preparation method thereof
C100自密实超高性能混凝土及其制备方法
LIANG WEI (Autor:in) / DONG PENG (Autor:in) / CHEN YUYING (Autor:in) / XU QING (Autor:in) / PENG JIANXIONG (Autor:in) / XIONG MENGQIN (Autor:in) / CHEN YONGSHENG (Autor:in) / YE BIN (Autor:in) / LI GAOCAI (Autor:in) / WAN HAILUN (Autor:in)
26.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Research on Preparation Technique of C100 Ultra-High Performance Self-Compaction Concrete
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