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A platform for research: civil engineering, architecture and urbanism
Repair material and repair method for improving structural toughness of high-pile wharf of port
The invention provides a repair material and a repair method for improving the structural toughness of a high-pile wharf of a port. The repair material comprises a pouring material and a protective layer, wherein the pouring material comprises a mixed mortar base body mixed with short fibers and repairing capsules; and the protective layer comprises 5-7 carbon fiber cloth layers. The repairing material comprises a pouring material and a protective layer. Chloride ion erosion in seawater can cause serious damage to reinforced concrete structures such as wharfs serving in the marine environment and is a main factor influencing the durability of the concrete structures in the marine environment, and the protective layer is beneficial to resisting chlorine salt erosion on the surface of a pile foundation of the high-pile wharf, reducing attachment of chlorine salt to a pile body and primarily preventing the chlorine salt from permeating into the wharf pile and corroding reinforced steel bars; and secondly, along with continuous reaction of a shell of the repairing capsule, the repairing capsule continuously and slowly releases inert gas outwards, so that further diffusion of oxygen is slowed down, and the existence time of a passive film of the steel bars in the pile foundation is guaranteed and prolonged, and the steel bars are protected, and the corrosion speed of the steel bars is slowed down.
本发明提供提升港口高桩码头结构韧性的修复材料及修复方法，修复材料包括浇注材料和防护层；浇注材料包括夹杂有短纤维和修复胶囊的混合砂浆基体；防护层包括5‑7层碳纤维布层。该修复材料包括浇注材料和防护层；海水中的氯离子侵蚀会对服役于海洋环境的码头等钢筋混凝土结构造成严重损伤，是影响海洋环境下混凝土结构耐久性的主要因素，防护层有助于抵御高桩码头桩基表面上的氯盐侵蚀，减小氯盐对桩体的附着，初步阻止氯盐渗透至码头桩体内部锈蚀钢筋，其次，随着修复胶囊外壳不断被反应掉，修复胶囊不断缓慢向外释放惰性气体，减缓氧气进一步扩散，保证并延长桩基内部钢筋的钝化膜的存在时间，以此保护钢筋以延缓其锈蚀的速度。
Repair material and repair method for improving structural toughness of high-pile wharf of port
The invention provides a repair material and a repair method for improving the structural toughness of a high-pile wharf of a port. The repair material comprises a pouring material and a protective layer, wherein the pouring material comprises a mixed mortar base body mixed with short fibers and repairing capsules; and the protective layer comprises 5-7 carbon fiber cloth layers. The repairing material comprises a pouring material and a protective layer. Chloride ion erosion in seawater can cause serious damage to reinforced concrete structures such as wharfs serving in the marine environment and is a main factor influencing the durability of the concrete structures in the marine environment, and the protective layer is beneficial to resisting chlorine salt erosion on the surface of a pile foundation of the high-pile wharf, reducing attachment of chlorine salt to a pile body and primarily preventing the chlorine salt from permeating into the wharf pile and corroding reinforced steel bars; and secondly, along with continuous reaction of a shell of the repairing capsule, the repairing capsule continuously and slowly releases inert gas outwards, so that further diffusion of oxygen is slowed down, and the existence time of a passive film of the steel bars in the pile foundation is guaranteed and prolonged, and the steel bars are protected, and the corrosion speed of the steel bars is slowed down.
本发明提供提升港口高桩码头结构韧性的修复材料及修复方法，修复材料包括浇注材料和防护层；浇注材料包括夹杂有短纤维和修复胶囊的混合砂浆基体；防护层包括5‑7层碳纤维布层。该修复材料包括浇注材料和防护层；海水中的氯离子侵蚀会对服役于海洋环境的码头等钢筋混凝土结构造成严重损伤，是影响海洋环境下混凝土结构耐久性的主要因素，防护层有助于抵御高桩码头桩基表面上的氯盐侵蚀，减小氯盐对桩体的附着，初步阻止氯盐渗透至码头桩体内部锈蚀钢筋，其次，随着修复胶囊外壳不断被反应掉，修复胶囊不断缓慢向外释放惰性气体，减缓氧气进一步扩散，保证并延长桩基内部钢筋的钝化膜的存在时间，以此保护钢筋以延缓其锈蚀的速度。
Repair material and repair method for improving structural toughness of high-pile wharf of port
提升港口高桩码头结构韧性的修复材料及修复方法
LIU HONGBIAO (author) / LIU ZHENGBIN (author) / XING DONGLIANG (author) / FENG WEIWEI (author) / LIU GUANGBO (author) / SUI HONGFU (author)
2021-12-10
Patent
Electronic Resource
Chinese
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