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New and old concrete connector waterproof structure and treatment method

A new and old concrete, waterproof structure technology, applied in underwater structures, infrastructure engineering, water conservancy projects, etc., can solve problems such as water seepage, cracks in the interface between new and old concrete, to avoid cracks, reduce grout leakage and shrinkage, Effective waterproof effect

Inactive Publication Date: 2017-08-04
CCFEB CIVIL ENG
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Problems solved by technology

[0005] The invention provides a new and old concrete interface waterproof structure and treatment method to solve the technical problem that cracks appear at the new and old concrete interface to cause water seepage

Method used

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  • New and old concrete connector waterproof structure and treatment method
  • New and old concrete connector waterproof structure and treatment method

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Embodiment Construction

[0035] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0036] refer to figure 1 and figure 2 , a preferred embodiment of the present invention provides a new and old concrete interface waterproof treatment method, the method comprises the following steps:

[0037] S101: Carrying out roughening treatment on the old and new concrete interface 11;

[0038] S102: Laying a fiber reinforced composite material mesh on the new and old concrete interface 11, and brushing the interface agent 40 on the new and old concrete interface 11 where the fiber reinforced composite material mesh is laid;

[0039] S103: Pouring new concrete 20.

[0040] Preferably, the fiber-reinforced composite material mesh is a carbon fiber mesh, and the interface agent 40 is a ...

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Abstract

The invention discloses a new and old concrete connector waterproof structure and a treatment method. A fiber reinforced composite material is laid on an old concrete interface obtained after chiseling treatment, an adhesion agent is brushed to the old concrete interface on which the fiber reinforced composite material is laid before new concrete pouring, the fiber reinforced composite material makes sufficient contact with cement paste, better adhesion of the cement paste is conducted, and paste leakage and dry shrinkage of the cement paste are reduced; and the overall strength of the cement paste on the new and old concrete contact face is improved, cracks are effectively from being generated at a new and old concrete connector, and accordingly effective water prevention is achieved.

Description

technical field [0001] The invention relates to the field of waterproof engineering, in particular to a waterproof structure and a treatment method for a new-old concrete interface. Background technique [0002] In recent years, with the acceleration of the urbanization process, more underground buildings need to be expanded. For underground engineering buildings with high waterproof requirements, the waterproof treatment of the interface between the new structure and the original structure is the focus and difficulty of construction. In particular, the joint treatment of old and new concrete is widely used in large-volume concrete and concrete repair projects that are poured separately. The waterproof technology of the old and new concrete interface directly affects the waterproof effect of the overall structure, because there are differences in the cold shrinkage deformation of the new and old concrete, and the newly poured concrete Cracks are prone to appear in contact wi...

Claims

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Application Information

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IPC IPC(8): E02D29/16E02D31/02E04B1/68
CPCE02D29/16E02D31/02E04B1/68E04B1/6806
Inventor 彭泽健曾小明汤仁杰卢志远
Owner CCFEB CIVIL ENG
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