Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fiber-reinforced regenerated ultra-high performance concrete and preparation method thereof
The invention relates to the technical field of ultra-high performance concrete, and particularly discloses fiber-reinforced recycled ultra-high performance concrete, which is prepared from the following raw materials in parts by mass: 50 to 100 parts of cement, 20 to 50 parts of fly ash, 20 to 30 parts of recycled coarse aggregate, 60 to 80 parts of fine aggregate, 5 to 15 parts of hybrid fiber, 1 to 5 parts of steel fiber, 5 to 10 parts of epoxy resin, 1 to 2 parts of water reducing agent, 5 to 10 parts of doping agent and 2 to 4 parts of curing agent. The dopant comprises the following raw materials in parts by mass: 1-2 parts of graphene oxide, 0.01-0.1 part of cerium acetate and 1-5 parts of ammonia water with the mass fraction of 5-15%. The invention also discloses a preparation method of the fiber-reinforced regenerated ultra-high performance concrete. The concrete has excellent compressive strength, crack resistance and freeze-thaw resistance, the matrix microstructure is compact, the impermeability is good, and the structural durability is effectively improved; meanwhile, the construction performance is good, and application and popularization in actual engineering are facilitated.
本发明涉及超高性能混凝土技术领域，具体公开了一种纤维增强再生超高性能混凝土，其原料按质量份包括：水泥50‑100份，粉煤灰20‑50份，再生粗骨料20‑30份，细骨料60‑80份，混杂纤维5‑15份，钢纤维1‑5份，环氧树脂5‑10份，减水剂1‑2份，掺杂剂5‑10份，固化剂2‑4份；掺杂剂原料按质量份包括：氧化石墨烯1‑2份，乙酸铈0.01‑0.1份，质量分数为5‑15％的氨水1‑5份。本发明还公开了上述纤维增强再生超高性能混凝土的制备方法。本发明具有优异的抗压强度、抗裂性能及抗冻融效果，基体微观结构致密，抗渗性好，有效提高结构耐久性；同时施工性能好，有利于其在实际工程中的推广及应用。
Fiber-reinforced regenerated ultra-high performance concrete and preparation method thereof
The invention relates to the technical field of ultra-high performance concrete, and particularly discloses fiber-reinforced recycled ultra-high performance concrete, which is prepared from the following raw materials in parts by mass: 50 to 100 parts of cement, 20 to 50 parts of fly ash, 20 to 30 parts of recycled coarse aggregate, 60 to 80 parts of fine aggregate, 5 to 15 parts of hybrid fiber, 1 to 5 parts of steel fiber, 5 to 10 parts of epoxy resin, 1 to 2 parts of water reducing agent, 5 to 10 parts of doping agent and 2 to 4 parts of curing agent. The dopant comprises the following raw materials in parts by mass: 1-2 parts of graphene oxide, 0.01-0.1 part of cerium acetate and 1-5 parts of ammonia water with the mass fraction of 5-15%. The invention also discloses a preparation method of the fiber-reinforced regenerated ultra-high performance concrete. The concrete has excellent compressive strength, crack resistance and freeze-thaw resistance, the matrix microstructure is compact, the impermeability is good, and the structural durability is effectively improved; meanwhile, the construction performance is good, and application and popularization in actual engineering are facilitated.
本发明涉及超高性能混凝土技术领域，具体公开了一种纤维增强再生超高性能混凝土，其原料按质量份包括：水泥50‑100份，粉煤灰20‑50份，再生粗骨料20‑30份，细骨料60‑80份，混杂纤维5‑15份，钢纤维1‑5份，环氧树脂5‑10份，减水剂1‑2份，掺杂剂5‑10份，固化剂2‑4份；掺杂剂原料按质量份包括：氧化石墨烯1‑2份，乙酸铈0.01‑0.1份，质量分数为5‑15％的氨水1‑5份。本发明还公开了上述纤维增强再生超高性能混凝土的制备方法。本发明具有优异的抗压强度、抗裂性能及抗冻融效果，基体微观结构致密，抗渗性好，有效提高结构耐久性；同时施工性能好，有利于其在实际工程中的推广及应用。
Fiber-reinforced regenerated ultra-high performance concrete and preparation method thereof
一种纤维增强再生超高性能混凝土及其制备方法
XUE CHENGSONG (Autor:in) / LIANG JUNDE (Autor:in)
12.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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