Internal-bonded water-proof technique for externally-bonded waterstop

Abstract

The invention relates to an internal-bonded water-proof technique for externally-bonded waterstop, comprising steps as follows: (1) plugging a previous seam caused by damaged embedded-type waterstop primarily to plug water; (2) chiseling a groove at the leakage place on the inner lateral side of the concrete structure at two sides of an expansion joint; (3) planting anchored reinforcement with the same height at the bottom of the groove, placing the waterstop into the groove, and ensuring that the top end of the anchored reinforcement supports the waterstop; (4) setting a template on the groove surface, two ends of the template being tightly clipped to the inner lateral surface; (5) and pouring slurry materials into the groove, and removing films to an intensity. The invention finishes procedures of bonding, filling, sealing and enhancing at a time, can greatly enhance the tensile strength to ensure a level surface upon completion.

Description

technical field [0001] The invention relates to an externally pasted waterstop and internally pasted waterproof technology. Background technique [0002] In the design of underground concrete structures, in order to prevent uneven settlement and deformation of large buildings, it is usually necessary to set up multiple expansion joints to improve the damage caused by deformation and settlement to the structure. Expansion joints are mostly treated with wear-resistant rubber or plastic waterstops with good elasticity and high elongation. There are two types of buried and externally attached in the design. The middle burial is to bury the waterstop in the middle of the cross-section of the concrete structure; the external attachment is applied to the outside of the expansion joints and settlement joints of the underground concrete structure, that is, the water-facing surface, as shown in Figure (1). [0003] In the past, waterstops were mostly used to deal with expansion joint...

AI Technical Summary

Problems solved by technology

[0004] ① The steel bars in the concrete structure may not just meet the welding requirements of the angle steel, and it is also inconvenient to perform welding operations. The angle steel should be welded up, down, left, and right to connect a closed whole underground, especially the operation at the top is very difficult;

[0005] ②The gap between the angle steel and the concrete structure is difficult to achieve real sealing, which requires the rigidity of the angle steel must be very large, otherwise the angle steel deflection, deformation and other factors will easily form construction joints and seep water, and the operation on the top will be more difficult to achieve. Effect;

[0007] ④ The underground is in a humid state for a long time, and the iron parts are easy to rust and affect the service life. After treatment, the protruding surface is higher, which affects the use

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