Jiangsu Lanlong Building Waterproof and Leakage Stopping Co., Ltd
1、 Waterproof and leakage blocking, structural reinforcement construction procedures are as follows:
1. First chisel a 70mm deep and 60mm wide "V" joint at the construction party, and flush it with water.
2. Fixed grouting channel and grouting pipe
Fix the PE foam strip of the grouting channel with the quick plugging spirit. When fixing the PE foam strip, bury a grouting pipe every 50cm or so. The grouting pipe is made of 10~13mm pressure resistant rubber Hose , the pipe has been used as a guide Water pipe It is also used as grouting pipe.
3. Grouting, leak stopping and water stop and polymer * flexible sealing waterproof construction
Inject polymer grouting material from one side - grouting plugging king, and the grouting pressure is controlled between 0.3~0.5MPa. When the hole next to grouting emits grout, stop grouting and close it valve Then grout from another hole to stop leakage, and then proceed in sequence. After all grouting is completed, observe whether there is leakage. If there is still leakage in some places, supplement grouting from the nearest hole until there is no leakage. PG321 two-component polysulfide sealant shall be applied after pipe cutting.
4. Construction of rigid protective layer
After the waterproof and leak stopping grouting, the cracks will not leak again, and the fast leak stopping spirit will be used as the rigid waterproof protective layer
2、 Damu leakage treatment scheme
1. Surface course method: it is applicable to the treatment of structural leakage. Generally, the treatment of basement leakage cannot be carried out on the upstream surface, but only on the downstream surface. Therefore, before construction, water diversion and drainage should be carried out to prevent the newly made waterproof surface from being damaged by pressurized water. The specific method of surface layer method is: select the location with concentrated leakage, open holes and bury pipes to make water flow from the conduit. According to the amount of water leakage, pipes can be buried at one or more places for water diversion. If no water leakage point can be found wall The lower part is buried for water diversion. Then, according to the material use requirements, apply polymer on the watertight part cement Waterproof mortar shall be plastered and compacted layer by layer in the order of waterproof plain mortar - waterproof mortar - waterproof plain mortar, and then pull the pipe to block water. For slight water seepage of the concrete, the compressive plugging spirit can be applied to the concrete surface, and the scraper can be used for construction. Generally, the construction shall be conducted for 2-3 times until no water shadow is seen. For holes and gaps with obvious water leakage, water stop treatment shall be carried out one by one according to the leakage water treatment of holes and cracks.
On the surface of the concrete structure, when there is not very serious slow water leakage with small water pressure (such as sweating, moisture absorption, etc.), anti leakage grams can be applied on the back surface to form an impermeable cover layer on the surface to play the role of seepage prevention. The specific method is as follows: the surface of the base course shall be treated flat and smooth, the uneven parts shall be filled with cement mortar, flattened and trowelled, and the dust and oil stains on the surface of the base course shall be removed to facilitate the bonding of the waterproof layer. After the above work is completed and inspected as qualified, the anti leakage gram can be used for construction.
2. Grouting method: grouting treatment can also be adopted in case of water leakage in the basement. According to the water leakage situation, grouting holes can be arranged on the structure, which can be arranged in plum blossom, triangle or straight shape, and then grouting treatment can be carried out to form a waterproof curtain inside the structure. In addition, "surface sealing grouting" can also be used, that is, first lower the pipe for water diversion, and then use the fast plugging spirit.
