Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shrinkage-inhibiting anti-cracking ultra-high performance concrete and preparation method thereof
The invention discloses shrinkage-inhibiting and crack-resisting ultra-high performance concrete and a preparation method thereof. The shrinkage-inhibiting and crack-resisting ultra-high performance concrete is prepared from the following raw materials in parts by weight: 697 to 834.3 parts of cement, 72.3 to 142 parts of regenerated micro powder, 209.1 to 245.8 parts of silica fume, 1028.9 to 1045.9 parts of quartz sand, 21.2 to 21.9 parts of a water reducing agent and 191.1 to 197 parts of water. The weight part ratio of the cement to the regenerated micro powder to the silica fume to the quartz sand is calculated according to a close packing theory; the water-binder ratio of the ultra-high performance concrete is 0.1 to 0.2; according to the ultra-high-performance concrete, an optimized Andersen particle close packing model is utilized for designing the mixing proportion of all the raw materials in the ultra-high-performance concrete, so that the raw materials can achieve an excellent synergistic effect, and therefore, regenerated micro powder is added into the ultra-high-performance concrete to replace part of cement to achieve the shrinkage-inhibiting and anti-cracking effects; the mechanical property of the ultra-high-performance concrete is not reduced, large-scale popularization and application of the regenerated micro-powder ultra-high-performance concrete are facilitated, and the cost of the ultra-high-performance concrete can be better reduced.
本发明公开了一种抑缩抗裂超高性能混凝土及其制备方法，包括以下重量份原材料制备而成：697‑834.3份的水泥，72.3‑142份的再生微粉、209.1‑245.8份的硅灰、1028.9‑1045.9份的石英砂、21.2‑21.9份的减水剂和191.1‑197份的水；所述水泥、再生微粉、硅灰和石英砂的重量份之比根据紧密堆积理论计算得到；所述超高性能混凝土的水胶比为0.1‑0.2；该超高性能混凝土利用优化后的安德森颗粒紧密堆积模型对超高性能混凝土中的各原材料进行配合比设计，使各原材料之间能达到优异的协同效果，从而使超高性能混凝土在加入再生微粉来替代部分水泥来实现抑缩抗裂效果的同时，也不会降低超高混凝土的力学性能，有利于再生微粉超高性能混凝土的大规模推广应用，能够更好的降低超高性能混凝土的成本。
Shrinkage-inhibiting anti-cracking ultra-high performance concrete and preparation method thereof
The invention discloses shrinkage-inhibiting and crack-resisting ultra-high performance concrete and a preparation method thereof. The shrinkage-inhibiting and crack-resisting ultra-high performance concrete is prepared from the following raw materials in parts by weight: 697 to 834.3 parts of cement, 72.3 to 142 parts of regenerated micro powder, 209.1 to 245.8 parts of silica fume, 1028.9 to 1045.9 parts of quartz sand, 21.2 to 21.9 parts of a water reducing agent and 191.1 to 197 parts of water. The weight part ratio of the cement to the regenerated micro powder to the silica fume to the quartz sand is calculated according to a close packing theory; the water-binder ratio of the ultra-high performance concrete is 0.1 to 0.2; according to the ultra-high-performance concrete, an optimized Andersen particle close packing model is utilized for designing the mixing proportion of all the raw materials in the ultra-high-performance concrete, so that the raw materials can achieve an excellent synergistic effect, and therefore, regenerated micro powder is added into the ultra-high-performance concrete to replace part of cement to achieve the shrinkage-inhibiting and anti-cracking effects; the mechanical property of the ultra-high-performance concrete is not reduced, large-scale popularization and application of the regenerated micro-powder ultra-high-performance concrete are facilitated, and the cost of the ultra-high-performance concrete can be better reduced.
本发明公开了一种抑缩抗裂超高性能混凝土及其制备方法，包括以下重量份原材料制备而成：697‑834.3份的水泥，72.3‑142份的再生微粉、209.1‑245.8份的硅灰、1028.9‑1045.9份的石英砂、21.2‑21.9份的减水剂和191.1‑197份的水；所述水泥、再生微粉、硅灰和石英砂的重量份之比根据紧密堆积理论计算得到；所述超高性能混凝土的水胶比为0.1‑0.2；该超高性能混凝土利用优化后的安德森颗粒紧密堆积模型对超高性能混凝土中的各原材料进行配合比设计，使各原材料之间能达到优异的协同效果，从而使超高性能混凝土在加入再生微粉来替代部分水泥来实现抑缩抗裂效果的同时，也不会降低超高混凝土的力学性能，有利于再生微粉超高性能混凝土的大规模推广应用，能够更好的降低超高性能混凝土的成本。
Shrinkage-inhibiting anti-cracking ultra-high performance concrete and preparation method thereof
一种抑缩抗裂超高性能混凝土及其制备方法
GAI WEIPENG (Autor:in) / ZHANG CUIRONG (Autor:in) / ZHANG HONGRU (Autor:in) / ZHAO YAWAN (Autor:in) / SU WEIWEI (Autor:in) / SHEN YABIN (Autor:in) / LIU JUNYONG (Autor:in) / YIN LIHUA (Autor:in) / SUN TENG (Autor:in) / WANG YADONG (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
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