Construction process for pressure grouting sealing waterproof roll

Abstract

The invention relates to a construction process for a pressure grouting sealing waterproof roll, and provides a sealing device. The sealing device effectively solves the problem at an overlap edge ofthe waterproof roll; polyurethane or polymer waterproof mortar is injected, so that water resistance is improved; water stop rubber strips are arranged on four contact surfaces of a cover plate, a bottom slot and a roll during construction; joints of the water stop rubber strips at the two sides of the cover plate and the waterproof roll, the top bolt hole of the cover plate, and a top gas exhausthole position are brushed with waterproof sealing glue, so that water resistance of the sealing device is further improved; after grouting, the sealing device seals a water injection hole and a gas exhaust hole, so that water resistance of the sealing device is further improved, the service life of the overlap edge position of the waterproof roll is prolonged, water resistance of the overlap edgeposition of the waterproof roll is improved, and later-stage maintenance cost of a user is reduced. Moreover, the process can be widely popularized in waterproof construction areas of subway, housingconstruction, municipal administration and the like.

Description

technical field [0001] The invention relates to a construction technology, in particular to a construction technology of pressure grouting sealing waterproof coiled material. Background technique [0002] Waterproof membrane is mainly used in building walls, roofs, tunnels, roads, landfills, etc., to resist external rainwater and groundwater leakage, a flexible building material product that can be rolled into rolls, as an engineering basis The leak-free connection with the building is the first barrier for the waterproofing of the entire project and plays a vital role in the entire project. [0003] The construction of waterproof membrane requires the base to be dry, with a water content of less than 8%. Generally, the base is whitish without obvious water marks, or a piece of 1m×1m linoleum is laid flat on the clean flat surface for 3-4 hours, such as the base layer covered with linoleum. If the surface color is still the same as that of the surrounding uncovered parts, a...

AI Technical Summary

Problems solved by technology

[0003] The construction of waterproof membrane requires the base to be dry, with a water content of less than 8%. Generally, the base is whitish without obvious water marks, or a piece of 1m×1m linoleum is laid flat on the clean flat surface for 3-4 hours, such as the base layer covered with linoleum. If the surface color is still the same as that of the surrounding uncovered parts, and there is no obvious watermark, the moisture content has reached the requirement; the construction method of the waterproof membrane is to use a hot melt spray gun to dry and melt the bonding surface of the membrane, and the membrane and the base layer can be fully glued, or point Sticky or strip sticky, there must be excess asphalt extruded at the lap joint. Using this construction method, there will be gaps at the lap joint of the waterproof membrane, which will reduce the waterproof effect of the waterproof coil layer, and the lap joint will easily wrinkle Folding, hollowing, edge warping, delamination and slippage, etc., make the waterproof membrane layer poor in effect, short in service life, and increase the maintenance cost of users in the later period

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