Characteristics of rigid waterproof casing
The outer wall of rigid waterproof casing is designed with frosted surface and casing wing ring (water stop ring), which can improve the density of concrete on the contact surface with the ground and ensure that the concrete and casing do not produce tiny gaps due to the difference of materials, and four fixed nail holes can make the contact surface of casing and concrete match more closely and reduce the leakage rate.In the project of crossing the wall base of concrete structure, through the beam, through the shaped column, etc., it must be carried out simultaneously with the civil construction. As the secondary pouring between the casing and concrete is not easy to handle after the pre-drilled holes, some of them cannot be handled. For example, the basement foundation concrete shear wall installation of rigid waterproof casing.
To ensure that the pipe does not break or twist due to settlement, the pipe passes through three joints (expansion joints, settlement joints, and seismic joints) and generally sets the casing. This rigid waterproof casing has special requirements. Customized according to the design requirements. Room with expansion joints in the middle of the geothermal coil, the external set of casing to protect the heat pipe. The pipe is installed with a high utilization of operator space and can be used freely. Replacement of piping after maintenance users (reaching service life, etc.). Operator space is very limited. Plastic water supply pipe on the floor to install rigid waterproof casing, not only to consider the construction and maintenance, but also to play a role in corrosion prevention. It is well known that the casing for plastic water supply pipes does not necessarily have to go through the floor, but there are clear requirements for the height of the floor. Concrete shear walls are a common type of rigid waterproofing casing through foundation walls. When settling with the building, the gap between the casing can compensate for the settlement difference between the pipe and the building and reduce the pressure of the building on the pipe. The pipe is only temporarily fixed by the pipe frame and casing. Also, installing rigid waterproof casing can avoid damage to the interior decoration when changing pipes - if the casing is not installed, it will damage the walls.
The role of rigid waterproof casing contains some of the following dimensions.
1. Protecting the pipe from damage.
2. Easy installation of pipes, and maintenance of pipes. Casing with water room, there is a certain role to prevent water seepage, flow, flow to the lower level.
3. Prevent cross-contamination. Pipeline through the foundation wall, see the concrete shear wall, but also to install casing.
4. Protect the pipeline - when the building settlement occurs, through the gap between the pipeline and the casing, to you make up the difference between the pipeline and the building settlement, reduce the pressure of the building on the pipeline.
