Private homes, garages, function rooms, and overhead areas are all familiar buildings, and underground outdoor walls are widely used here. The basement is used to store fruit or food. In some places, it is regarded as a mysterious existence of "cold storage". Is it a charming building? Since it is so practical, then we will follow the decoration of the decoration home to study the reinforcement method and waterproofing of the underground outdoor wall .
1. Underground outdoor wall reinforcement method
1. The concrete underground wall template must be fastened with a one-time water stop screw. The underground outdoor wall is left with construction joints and post-casting belts as required. The construction joint or the post-casting belt shall be temporarily sealed with a steel mesh and the waterstop shall be provided as required. The template is left with a cleaning port, and the garbage in the wall is cleaned in time before the mold is closed. Strictly control the slump of concrete, the supply of concrete should be timely, and there should be no construction cold joints. After the mold is removed, attention should be paid to cover and timely maintenance. The time for demolishing the external wall should not be too early (should take the mold 7d), and the curing time should be no less than 14 days. After the end of the curing, the disposable water stop screw was cut off in time, and the screw end was closed with polymer cement mortar.
2. The processing of the pull screw is performed according to the subsequent “one-time water stop screw node treatmentâ€.
3. Defect repair The waterproof layer should be carefully repaired before the construction of the concrete wall to ensure that the base layer meets the requirements of waterproof layer construction. For general defects and cracks, pores and general defects of concrete surface with a crack width of less than 0.2mm, first fill the flat with concrete repair glue, and then smooth and smooth after drying. When the crack width exceeds 0.2mm, the buried pipe can be grooved on the concrete surface, and the concrete crack can be repaired by pressure grouting. Pressure grouting should be carried out by a professional company. At the same time, the project department should organize relevant units to review the special construction plan before construction.
2. Underground outdoor wall waterproofing practice
1. Waterproof additional layer waterproofing Before construction, the outer wall base should be smoothed and the defects repaired, and the screw groove has been treated flat. The waterproof additional layer shall be constructed as required in the construction of the external wall, the post-casting belt, the bottom plate and the external wall transfer, and the screw.
2. After the water-repellent layer waterproof additional layer is qualified, the construction shall be not less than 2mm thick polyurethane waterproof coating film, or not less than 4mm thick coil waterproof layer.
3. Waterproof protective layer construction 30 thick polystyrene board waterproof protective layer. The local lower water level is higher, and when the acceptance is allowed, a 120-thick non-clay brick wall can be used as a waterproof protective layer.
4. When backfilling the soil backfilling, pay attention to protect the waterproof protective layer and not damage the waterproof protective layer. The backfill soil must meet the needs of backfilling, and construction waste should not be used as backfill. The backfill must be layered and compacted according to the regulations, and the compactness is ≥93%. The END quality control point template is fastened using a disposable water stop screw. Water-stop steel plates are installed at the construction joints and the rear pouring belts. Concrete defects, screw end treatment. Waterproof additional layer, waterproof layer thickness, range control. The waterproof protective layer is set in time. The backfill is layered and compacted.
After reading this, you must understand the waterproofing of the underground outdoor wall, and thank the little cute people for their support and love for Xiaobian. I hope that my friends can get some inspiration in the daily production activities in the future, plus their own creativity can be better played, and further strengthen the reinforcement of the underground outdoor wall. If you want to get more information, please continue to pay attention to the decoration home network.
More related wonderful reading:
How to waterproof the underground outdoor wall? Underground outdoor wall waterproofing specification
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