What are the practices of reservoir waterproofing construction.
The specific practice of reservoir construction is: foundation treatment, pond wall masonry, reservoir waterproof construction method:
1) Fill the soil layer, mix with mortar and cement powder.
2) Smooth the foundation surface after treatment with tamping agent;
3) Lay a circle of epoxy adhesive tape (about 1mm thick) on the cushion as the bottom base. When there is a lot of putty, silicate paint or polystyrene reinforced impermeable membrane should be used. (Note: does not contain stannous chloride, formaldehyde, etc.).
4) After testing and strictly operating in accordance with the specifications, it is strictly forbidden to mix non-ferrous metal materials into the interior wall to reduce the corrosion of the exterior wall. If it is an inorganic polymer compound and contains a small amount of organic matter and no more oily substances, it needs to be polished. (such as graphite aluminum plate, etc.).
It is necessary to choose the appropriate medium and low pressure drainage system, and also to do the corresponding protective measures (such as exhaust pipe plugging, reinforced concrete embedded parts fixing, concrete pouring);
The sludge is cleaned up first, then the slope is lowered, and then the soil is transferred back to the soil.
A block or guardrail should be erected at the junction of the pile foundation and the formwork to prevent damage to the temporary facilities caused by the excavation project; It is also necessary to pay attention to protecting the surrounding environment to avoid being damaged or collapsing, which will reduce the bearing capacity and cause accidents.
Due to the high design requirements, in order to ensure the quality of the building, the following schemes are usually adopted: 1. Before the completion of the main structure, the frame structure is dismantled, and after the structural part is completed, the new structure can be reassembled. 2. According to the actual situation of the site, prepare the required equipment, tools and pipelines and cables, and place the installed brackets in the support position for timely replacement; 3. For large storage rooms, you can consider placing the ceiling on the shore, which can not only ensure the safety of the storage room but also facilitate later maintenance.
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What is a good waterproof coating for a cistern?
During the construction of the reservoir, a large amount of mud will be generated, and these solids will form sewage leakage if they are not treated or cleaned up in time. In order to prevent pollution and harm to the environment caused by pollutants, it is usually necessary to use acid-alkali resistant, anti-oxidation and other materials to protect its surface from damage or corrosion. Therefore, it is necessary to choose waterproof coatings with good durability to ensure the safety and quality of buildings. At the same time, it is necessary to pay attention to the service life of protective equipment and the selection of installation methods.
1. Anti-rust performance:
Due to the easy deformation of scaling after rainwater soaking;
2. Chemical stability and mechanical properties: When coating, attention should be paid to avoid excessive friction that causes damage to the coating film, such as decreased adhesion and adhesion. Therefore, it is important to carefully check whether the coating is firm and reliable before use to ensure that there are no breakage problems.
3. Strength level requirements:
For the concrete structure with high hardness, ordinary steel plate can be used to make the forming, but this method is more difficult because of the large amount of work and the high investment cost. In addition, cement storage tanks must be designed to take into account the erosiveness of the soil as well as changes in temperature, thus reducing the effects of gravel sedimentation.