How to deal with the leakage of underground civil air defense expansion joint

How to deal with the leakage of underground civil air defense expansion joint Underground man The following treatment methods can be adopted to prevent water leakage of expansion joints:
1. * * Epoxy resin coating treatment * *: epoxy resin coating can be used for treatment It can effectively solve the water leakage problem of concrete expansion joints, and is simple in construction and low in cost.
2. * * Waterproof agent treatment Spray evenly on the seam.
3. * * Grouting treatment * *: if the leakage is serious, grouting can be considered for treatment. First, the water in the expansion joint needs to be pumped out with an air pump, and then the cement mortar is injected into the joint to block the leakage point.
4. * * Re waterproof * *: If the above methods cannot solve the problem, you can re waterproof. The original concrete structure needs to be removed, and then the waterproof layer needs to be made again, and then the waterstop and other structures need to be reinstalled.
It should be noted that when dealing with the leakage of underground civil air defense expansion joints, a professional waterproof construction team should be selected to ensure the treatment effect. At the same time, after treatment, long-term observation and maintenance are required to ensure that the problem is completely solved. Underground man The following steps can be referred to for the water leakage prevention treatment of expansion joints and the water leakage repair scheme of basement roof:
1. For underground civil air defense expansion joint leakage It is necessary to find out the specific causes of water leakage, such as whether cracks occur frequently due to temperature changes or water leakage caused by construction quality. According to the actual situation, take corresponding repair measures, such as improving the construction quality and adding waterproof materials.
2. For the water seepage of the basement roof, the rigid waterproof materials or asphalt and other materials can be used to repair. Rigid waterproof materials, such as JS waterproof material, polymer cement waterproof coating, etc., shall be painted evenly during construction, and the polishing and slurry extraction shall be uniform The plastering shall not be pressed by force, or cracking will occur. Asphalt is often used for local repair, but attention should be paid to the process when using it. Make sure that the painting is even, and there is no white phenomenon, not to mention edge wrapping and exposed edge phenomenon.
3. After the repair is completed, regular inspection and maintenance shall be carried out to ensure that the repair effect is durable and effective.
The above steps are for reference only. If you have relevant experience, you can consult relevant materials or professional opinions. In actual operation, it is necessary to ensure safety, follow relevant regulations, and select appropriate materials and processes for repair. How to deal with the leakage of underground civil air defense expansion joint