Waterproof method for movement joint on building and adhesive anchorage built-in water stop

Abstract

The invention discloses a waterproof method for a movement joint on a building and an adhesive anchorage built-in water stop. The waterproof method comprises the following steps of: bonding a dovetail groove model made of foam rubber on one side of a movement joint template close to an upstream face; forming a dovetail groove on one side of the movement joint, wherein the opening of the dovetail groove faces to the movement joint; bonding the first wing of the adhesive anchorage built-in water stop in the dovetail groove; bonding an extruded sheet on concrete at one side of the movement joint; and bonding a response type wet pavement abnormal adhesion rubber sheet on the second wing of the adhesive anchorage built-in water stop in advance and bonding the second wing of the adhesive anchorage built-in water stop in concrete at the other side of the movement joint. By adopting the method, a fine aperture between the adhesive anchorage built-in water stop and concrete can be eliminated, long-term airtight waterproofness is realized, most concrete structures can be protected and a good waterproof effect is achieved; moreover, the adhesive anchorage built-in water stop can be effectively protected in an entire implement process, and the construction quality is ensured.

Description

technical field [0001] The invention relates to the field of building waterproofing, in particular to a waterproofing method for building deformation joints and an anchor-type built-in waterstop. Background technique [0002] Deformation joints in underground engineering are the most prone to leakage. Multiple waterproof measures are usually provided, and there are also main waterproof layers and additional waterproof layers. However, leakage at joints is still unavoidable. The current design rules and construction techniques for deformation joint waterproofing have lasted for 50 years without any change. According to relevant information, according to incomplete statistics, in engineering practice, about 60% to 70% of deformation joints have water leakage in different degrees, and the leakage of deformation joints has seriously affected the quality of construction projects. [0003] In the current national technical specifications, it is mandatory to choose a buried waters...

AI Technical Summary

Problems solved by technology

[0004] This waterproof method is not perfect in the water-stop mechanism, relying on oppression and extrusion of the water-stop to stop the water, but it cannot form a sealed waterproof

Especially under long-term water pressure, it is difficult to maintain a normal working condition

[0005] And when the waterstop is pre-buried, the formwork at the deformation joint of the first poured concrete is fragmented, the support is difficult, the mold is easy to run, the grout leaks, the waterstop loses its correct position, the quality of the concrete at the deformation joint is poor, and the joint The width is different, and the concrete under the waterstop is difficult to fill and compact, which is not good for waterstop

[0006] In addition, during construction, one wing of the waterstop is buried in the first poured concrete, and the other wing is exposed to the outside. Before the second pouring, it must go through the process of removing formwork, setting up formwork, and binding steel bars before being fixed. Cross operation makes it difficult to effectively protect the waterstop. Once the waterstop is damaged, it is very difficult to repair or cannot be repaired

[0007] Finally, since the waterproofing is done by extruding the waterstop, the concrete under the waterstop must have a certain thickness, so that the waterstop is far away from the water-facing surface

Even if the waterproofing is successful, only half of the concrete structure can be protected

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