A construction method for vertical waterproof construction joints

Abstract

The invention discloses a construction method for vertical waterproof construction joints, which comprises the following steps: S1: making construction joint formwork; S2: installation of construction joint formwork; S3: first pouring; S4: preparation for second pouring; S5: second pouring The second pouring, through the combination of the "toothed joint" structure between the old and new concrete and the chiseling process, forms the water-proof and anti-seepage effect of the horizontal section and the vertical section, and ensures the waterproofing of large-volume vertical construction joints. Aluminum formwork can be used Continuous use of the concept of conventional aluminum formwork and construction joint construction combined process innovation, easy processing and forming, mature formwork technology operation, sustainable use, cancel the use of conventional flexible waterproof and rigid waterproof materials, save material costs, and shorten the construction period , and use the "toothed joint" structure to contact the old and new concrete, increasing the structural contact surface to enhance the anti-occlusion ability.

Description

technical field [0001] The invention belongs to the technical field of construction, in particular to a construction method for vertical waterproof construction joints. Background technique [0002] In the construction of ultra-thick mass concrete, the "layered and segmented" construction method is often used, which inevitably produces construction joints. For large-area construction joints, it is only possible to adopt high-efficiency, low-cost, and easy-to-operate methods. It is the development trend of mass concrete construction joint treatment. The invention optimizes the construction method of the vertical construction joint of the traditional transfer layer, and adopts a low-cost, recyclable, easy-to-process and easy-to-assemble construction method to solve the problem of super-thick concrete construction joint treatment. [0003] Conventional construction methods for construction joints: [0004] 1. Chiseling method on the surface of the vertical joint: After the co...

AI Technical Summary

Problems solved by technology

[0009] 1. Traditional chiseling methods: generally have disadvantages such as poor labor conditions, high strength, low efficacy, slow progress and large loss of concrete, and high labor costs

[0010] 2. Retarder method: This kind of solution has poor adsorption to the concrete surface. It is extremely difficult to apply evenly in practical applications, and the local dosage is difficult to control. The one-time use cost of large-area construction is relatively high.

[0011] Waterproof construction joint method: the method is traditional and simple, and the one-time use cost is high for large-area use, and it cannot be reused

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