Analysis of leakage plugging and seepage plugging technology
First, the cause of water leakage.
Water is pervasive, and in the process of construction and use of water supply pipelines, due to various reasons, the pipeline may be damaged and leakage points may occur, or cause the disease of pipeline leakage, which seriously affects the quality and service life of the building. Generally, water leakage is divided into two forms: leakage and dripping. Leakage is a common problem, which can cause dampness, powder loss and even chalking of indoor walls. In serious cases, it will also affect the normal use of the building and even endanger the structural safety. Drip leakage is due to long-term running water, which not only wastes water sources, but also causes corrosion of pipelines and damage of water seals, thus affecting the normal operation of the water supply system. Therefore, water supply pipeline leakage has always been a problem that plagues the design and construction.
Second, several common plugging and seepage prevention methods.
a) Surface repair.
Surface repair is a simple, common practice that applies to leaks on the surface of pipes. Specific method: choose appropriate waterproof materials, such as asphalt paste, plastic, etc., to repair cracks, holes and other defects. During construction, care should be taken not to pollute other parts, such as walls, floors, etc.
2) Grouting leakage filling method.
Grouting leak filling method is an emerging leak filling technology, which is suitable for large cracks and severe leakage. Specific method: according to the leakage situation and professional testing equipment to determine the grouting position and grouting nozzle, and then carry out drilling, installation of grouting core pipe and fixing and other preparatory work. The matching chemical slurry is then injected into the cracks in the concrete, and when the grout hardens, the surface is treated. This method is effective and easy to operate.
3) Cement grouting leak filling method.
The cement grouting leakage filling method is suitable for the repair of leakage in various masonry buildings. Specific method: determine the grouting position and grouting nozzle according to the specific situation, and carry out the plugging work. Then, a two-component chemical slurry of cement and sodium silicate was used for grouting treatment. This method is difficult to operate and has high professional requirements.
4) Waterproofing agent plugging method.
The waterproofing agent plugging method is a commonly used plugging method. Specific methods: determine the leakage site and leakage point according to the specific situation, and carry out groove drilling, cleaning and other work. Then the prepared waterproofing agent and cement mixture are injected, and after the waterproofing agent is hardened, the appropriate treatment is carried out. This method is simple to construct, low in cost, and has remarkable effect.
3. Prevention is the first priority, and prevention is better than prevention.
Since the water supply pipes are mostly concealed projects, the construction and installation of water supply pipelines must be strictly controlled to ensure the quality of construction. The following points should be paid attention to during the construction process:
a) Installers must have the corresponding professional knowledge and skills;
2) Carry out construction in strict accordance with the construction drawings;
3) Ensure that the quality and specifications of the pipe meet the requirements;
4) Ensure the tightness and integrity of the pipeline during installation
5) Strict quality inspection and acceptance should be carried out for key parts.
Fourth, summary. The leakage problem of water supply pipelines has always been a difficult problem in design and construction, but as long as we can choose the appropriate plugging and seepage prevention method according to the specific situation, and strictly control the construction process, we can effectively prevent and solve this problem. At the same time, we must also realize that prevention is the best way to ensure the quality and longevity of a building only by strict control during the design and construction process. Hope the above can help you.