News Abstract: the plugging effect is closely related to materials. Materials provide basic conditions and guarantee for plugging technology. Superior performance and high-grade materials should be reflected in the use of technology. No matter what materials are used, they must match and adapt to the operation of plugging technology.
The plugging effect is closely related to the materials. The materials provide the basic conditions for the plugging technology and play a guarantee role. The superior performance and high-grade materials should be reflected in the application technology. No matter what materials are used, they must match and adapt to the operation of the plugging technology. 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. basement Plugging of expansion joint What is the construction sequence of the project? 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 can be 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. 6. The setting time of slurry can be adjusted by changing the amount of component materials. 7. Grouting. Grouting is the central link of the whole grouting and plugging, which must be operated by full-time and skilled personnel. The division of labor is organized and the posts are fixed. The operation procedures are as follows: 8. When the grouting is finished, the grout in the pipeline must be jacked into the joint with acetone before the end, and the grouting will be stopped when the solvent is expected to fill the pipeline.