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Water leakage around waterproof casing pipe and preventive measures

Time: 05-06 󰃯 Reading times: 782 󰃳 Editor in charge: The sea 󰃗 Column: product focus

Introduction: According to the investigation of the water leakage of the engineering floor, there are three possibilities for the leakage around the pipe: (1) the interface between the pipe wall and the concrete is leaking;
(2) there is a construction joint between the concrete and the floor slab for hole filling due to different construction at the same time

flexibility Waterproof casing According to the investigation of water leakage of engineering floor, it is considered that there are three possibilities of water leakage around the pipeline
(1) the interface between concrete and pipe;
(2) there is a construction joint (i.e. the interface of concrete pouring and tamping successively) in the concrete and floor slab for hole filling, which is easy to leak;
(3) the bee hole is caused by unreasonable distribution or compaction
It can be seen from this that the casing has a waterproof wing ring, which makes the interface with the concrete become concave and convex, and also increases the contact area with the concrete, which can make the water pipe interface watertight. Because the installation of waterproof casing does not need to repair the hole, there will be no construction joint, of course, there is no possibility of construction joint leakage Rigid waterproof casing Waterproof treatment effect is good
At present, most of the water supply and drainage pipes in buildings are made of plastic products. It is very easy to stick a half piece of PVC-U pipe, and the cost is less than 10% of that of the casing. It is also a treatment method, which is more simple. It makes a water stop ring higher than the ground, and it needs to emphasize the fine aggregate coagulation The soil must be rammed in two times and compacted, otherwise it is easy to leak
   Flexible waterproof casing From the point of view of the construction quality, it can be seen that there is no relationship between the quality of the embedded pipe and the installation of the water pipe; However, it is not advisable from the economic point of view, which will greatly increase the construction cost, and this investment will not increase the use of the building. If the construction personnel are conscientious and responsible and operate in strict accordance with the process requirements, the same effect can be achieved as that of the embedded waterproof casing. The leakage condition is only the performance of poor construction quality, not the fault of not burying the casing. Therefore, the author suggests that the designers should prevent the leakage of water The setting of water casing can be treated differently, for example, the casing pipe can not be saved if there is a clear regulation in the code for the exterior wall of basement; it can be considered to pass through the flat roof water pipe, because the total number is small and the waterproof effect is good; The total number of pipes passing through the floor is large and the cost is high. It is very few to store water at the installation positions of fire pipes and indoor rainwater pipes, so it is unnecessary to set waterproof casing pipes