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What is the construction sequence of basement expansion joint leak stoppage project

Hits: 381 2020-02-19 20:13:43 source: Jiangsu Xinda high altitude Engineering Co., Ltd

News Abstract: first of all, the leakage of holes, loose and other major defects are carefully searched and treated. This step is the key to the whole plugging, which must be done carefully and painstakingly.

Firstly, the major defects such as holes and looseness at the leakage site are carefully searched and treated. This step is the key to the whole plugging, which must be done carefully and painstakingly. Only on this basis can the second step of plugging treatment be carried out. When dealing with the leakage of structural joint, junction joint and construction joint, if the deformation of the joint has stopped, the rigid material can be used to stop the leakage; if the joint is likely to deform, the flexible material should be used. The treatment methods of structural joint, joint and construction joint leakage are: blocking method, caulking method, grouting method, pasting method and brushing compaction method.
The construction sequence of leakage stoppage should first block the large leakage, then the small leakage, first the high place and then the low part, and first the wall body and then the bottom plate. The grouting process of Yancheng basement plugging company can be roughly divided into the following steps:
1. On site investigation to determine the specific repair plan.
2. Slot along the crack, groove type "V", groove width x depth of 2-3x2-3cm (this process is applicable to crack leak repair).
3. Determine the design and layout of grouting holes.
The position of grouting hole should be such that the bottom of the hole intersects with the leakage crack pore, and the position with the maximum water leakage is selected.
4. Joint sealing and consolidation grouting nozzle.
5. Check the pressurized water and air compressor. The pressure should be maintained at 0.3-0.4mpa.
Solution to crack leakage: chemical grouting generally refers to the grouting prepared by chemical materials, which is buried by drilling holes and injected into structural cracks by using pressure to diffuse and solidify, so as to achieve the purpose of waterproof, plugging, reinforcement and reinforcement. It is often used to repair deep cracks in concrete structures. According to the grouting pressure and speed, it can be divided into high pressure fast grouting method and low pressure slow grouting method.
High pressure chemical grouting plugging technology is to use the continuous high pressure produced by the grouting machine to pour the chemical material into the cracks inside the concrete, and completely squeeze out the water in the joints, so as to completely fill the gaps and achieve the purpose of water stop.

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