Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance concrete for repairing underwater concrete cracks, preparation method thereof, and method for repairing cracks by using high-performance concrete
The invention discloses a high-performance concrete for repairing underwater concrete cracks, a preparation method thereof, and a method for repairing the cracks by using the high-performance concrete, and belongs to the field of civil engineering. The technical problems that an existing underwater concrete crack repairing method is difficult to meet long-term and frequent changes of cracks, and construction is difficult due to the fact that repairing measures need to be conducted under the water cut-off condition are solved. The high-performance concrete is prepared by stirring cement, fly ash, sands, stones, water and an underwater non-dispersant. When in use, the high-performance concrete is slowly thrown into underwater concrete cracks. The high-performance concrete for repairing the underwater concrete cracks adopts an underwater direct repairing thought to directly repair the surfaces of the cracks of an underwater lining plate, water cut-off is not needed, the repairing efficiency can reach 95%, the construction cost is reduced, and the water environment is not polluted. The 7 d underwater strength of the concrete is 17.6 MPa, the 28 d underwater strength of the concrete is25.1 MPa, and the concrete is high in strength and excellent in compactness, impermeability, underwater durability and dispersion resistance.
一种用于修复水下混凝土裂缝的高性能混凝土及其制备方法和用其修复裂缝的方法。本发明属于土木工程领域。本发明解决了现有水下混凝土裂缝修复方法难以满足裂缝长期、频繁的变化以及修复措施需要在断水情况下进行而导致施工困难的技术问题。产品由水泥、粉煤灰、砂子、石子、水和水下不分散剂经搅拌制备而成。使用时缓慢投入到水下混凝土裂缝中。本发明的用于修复水下混凝土裂缝的高性能混凝土，采用水下直接修复的思路对水下衬板的裂缝表面直接进行修补，无需断水，修复效率可达95％，降低施工成本，不污染水质环境。7d水下强度为17.6MPa，28d水下强度为25.1MPa，强度高，且密实性、抗渗性能、水下耐久性能和抗分散性能都很优异。
High-performance concrete for repairing underwater concrete cracks, preparation method thereof, and method for repairing cracks by using high-performance concrete
The invention discloses a high-performance concrete for repairing underwater concrete cracks, a preparation method thereof, and a method for repairing the cracks by using the high-performance concrete, and belongs to the field of civil engineering. The technical problems that an existing underwater concrete crack repairing method is difficult to meet long-term and frequent changes of cracks, and construction is difficult due to the fact that repairing measures need to be conducted under the water cut-off condition are solved. The high-performance concrete is prepared by stirring cement, fly ash, sands, stones, water and an underwater non-dispersant. When in use, the high-performance concrete is slowly thrown into underwater concrete cracks. The high-performance concrete for repairing the underwater concrete cracks adopts an underwater direct repairing thought to directly repair the surfaces of the cracks of an underwater lining plate, water cut-off is not needed, the repairing efficiency can reach 95%, the construction cost is reduced, and the water environment is not polluted. The 7 d underwater strength of the concrete is 17.6 MPa, the 28 d underwater strength of the concrete is25.1 MPa, and the concrete is high in strength and excellent in compactness, impermeability, underwater durability and dispersion resistance.
一种用于修复水下混凝土裂缝的高性能混凝土及其制备方法和用其修复裂缝的方法。本发明属于土木工程领域。本发明解决了现有水下混凝土裂缝修复方法难以满足裂缝长期、频繁的变化以及修复措施需要在断水情况下进行而导致施工困难的技术问题。产品由水泥、粉煤灰、砂子、石子、水和水下不分散剂经搅拌制备而成。使用时缓慢投入到水下混凝土裂缝中。本发明的用于修复水下混凝土裂缝的高性能混凝土，采用水下直接修复的思路对水下衬板的裂缝表面直接进行修补，无需断水，修复效率可达95％，降低施工成本，不污染水质环境。7d水下强度为17.6MPa，28d水下强度为25.1MPa，强度高，且密实性、抗渗性能、水下耐久性能和抗分散性能都很优异。
High-performance concrete for repairing underwater concrete cracks, preparation method thereof, and method for repairing cracks by using high-performance concrete
一种用于修复水下混凝土裂缝的高性能混凝土及其制备方法和用其修复裂缝的方法
RONG QIN (Autor:in) / HOU XIAOMENG (Autor:in) / LIN LI (Autor:in) / BI HONGTAO (Autor:in)
15.05.2020
Patent
Elektronische Ressource
Chinesisch
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