Waterproof processing method and structure for roof stretching seam

Abstract

The invention provides waterproof processing method and structure for a roof stretching seam. The method comprises the following steps: integrally pouring a roof floor and a waterproof blocking platform in the roof stretching seam position into a whole; after the roof to be concreted is initially solidified, demoulded and cleaned, adopting a dry laying bituminous felt layer as an isolating layer;sequentially laying a fine stone concrete waterproof layer, a cement mortar leveling layer, a macromolecule coiled material additional layer and a macromolecule coiled material waterproof layer on theisolating layer and filling foamed plastics in the stretching seam; filling a gasket material on the foamed plastics, sealing by a coiled material and covering a concrete cover plate on the top. Theinvention adopts a cast-in-situ reinforced concrete blocking platform as a flashing to reinforce the waterproof ability of a weak joint in the roof stretching seam position and prevent water leakage in the roof deforming seam position; and the roof floor and the waterproof blocking platform in the roof stretching seam position are integrally poured into a whole to overcome the defect of bad integrity of the prior method for building the waterproof blocking platform by bricks in the roof deforming seam position.

Description

Technical field [0001] The invention relates to a building construction method, in particular to a waterproof treatment method for expansion joints. Background technique [0002] Aluminum electrolysis is a metal smelting process. The main raw material is alumina powder to produce aluminum solution. The main power source is direct current. It comes from 110KV alternating current from the high-voltage power grid. After being transformed and rectified, it is directly supplied to electrolysis production. For electrolytic aluminum with an annual output of more than 100,000 tons, 4 or more rectifier units are usually used for the outlet interval, and the total length of the building is more than 60 meters. Because the equipment in the rectifier room is live equipment, and the rectifier room occupies a special important position in the entire electrolytic aluminum plant, the roof waterproof treatment of the building, especially when the length exceeds 60 meters, requires roof expansion ...

AI Technical Summary

Problems solved by technology

However, the waterproof treatment of the roof expansion joints of the existing substation rectifier room is all one waterproofing, and the method of flooding with a brick block platform is used. The waterproofing ability is relatively weak, and there is a hidden danger of water leakage.

[0003] In the prior art, the Chinese patent application number 95110703.8 discloses a high-efficiency waterproof and thermal insulation flat roof and its technology, and the Chinese patent application number 00112762.4 discloses a construction method for a rigid waterproof roof. Treatment method, but no special treatment method is adopted for the weak link at the expansion joint, there is still a hidden danger of water leakage

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