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Method for carrying out waterproof treatment on old and new concrete interface

A new and old concrete and waterproof treatment technology, applied in water conservancy projects, underwater structures, artificial islands, etc., can solve the problems of general waterproof and sealing structure effects, and achieve the effect of good sealing and waterproof effects, simple process, and great promotion value

Inactive Publication Date: 2018-12-04
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the general problem of the waterproof sealing structure effect of the prior art mentioned in the above background technology, and to provide a method for waterproofing the old and new concrete interface

Method used

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  • Method for carrying out waterproof treatment on old and new concrete interface
  • Method for carrying out waterproof treatment on old and new concrete interface
  • Method for carrying out waterproof treatment on old and new concrete interface

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as Figure 1~5 In this embodiment, the interface of the old concrete 1 needs to be cleaned first, and the sundries attached to the interface are removed, and then the interface of the old concrete 1 is chiseled into a zigzag structure to increase the surface area.

[0033] The water stop strip 3 of the present embodiment is as figure 2 As shown, the cement nail 7 is fixed on the chiseled interface, the water-stop strip 3 is a rubber water-stop strip that swells with water, and the water-stop strip 3 has a hemispherical structure. The water stop strip 3 is the first waterproof sealing structure of this embodiment. The interface of the old concrete 1 is equipped with at least two along the interface length direction (the length direction of this embodiment refers to figure 1 In the direction perpendicular to the drawing,...

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Abstract

The invention relates to the technical field of concrete building waterproof structures, in particular to a method for carrying out waterproof treatment on an old and new concrete interface. The method comprises the following steps that the old and new concrete interface is cleaned, and then dabbing is carried out on the old and new concrete interface; a water-meeting expansion water stop strip isinstalled on an old concrete interface subjected to dabbing; a grouting pipeline is arranged at the old concrete interface; a template is built for pouring of new concrete, and the grouting pipelineand the water stop strip are poured into the new concrete; joint materials are injected into the grouting pipeline after the new concrete is stabilized; the template and a grouting guide pipe are disassembled, and waterproof sealing joints are arranged at the upper ends of the new concrete and the old concrete. The interface processing method is simple in process, good in sealing and waterproof effects, can be applied to the field of various new and old concrete connection and has great popularization value.

Description

technical field [0001] The invention relates to the technical field of concrete building waterproof structures, in particular to a method for waterproofing the interface between old and new concrete. Background technique [0002] In underground structures such as subways and underground spaces, problems such as docking of new structures with existing structures or permanent sealing of reserved holes are often encountered. There are inevitable construction joints between the original concrete structure and the newly poured concrete, which causes problems such as water seepage and water leakage between the old and new concrete. Affect the durability and use of structures such as subways and underground spaces. [0003] In the prior art, it is generally necessary to arrange a waterproof sealing structure at the joint surface of old and new concrete. Patent No. "200510200165.4" is a Chinese invention patent named "Waterproof construction method and structure of new and old con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/16E02D31/02E04B1/68
CPCE02D29/16E02D31/02E04B1/68E04B1/6806
Inventor 朱炎兵赵星雷崇董俊
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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