When there is underground water or a pool filled with water outdoors, the concrete between the bottom plate and the external wall panel, and between the first underground floor and the second underground floor shall be poured and compacted respectively. The next time the wallboard concrete is cast, the construction cold joint appears. When the position of this joint is below the groundwater level, water seepage is easy to occur.
The steel plate water stop is a 300mmx3mm steel plate embedded when pouring the lower concrete, in which the upper part of 10- 15cm is exposed, and this part of the steel plate will be poured together when pouring the concrete next time to prevent the pressure water from infiltrating outward.
Cold-rolled steel plate is generally used as the base material of steel plate water stop, because the thickness of cold plate can be uniform, and the thickness of hot plate is generally uneven, generally 2 mm or 3 mm, and the length is generally processed into 3 m or 6 m long, generally 3 m, which is convenient for transportation. Water-stop steel plates have high requirements for welded joints, and no leakage can occur, which will affect the waterproof performance.
Extended data:
Precautions for installation:
1. There is a reserved paste method during installation. When pouring concrete for the first time, a water stop groove should be reserved (battens can be reserved in the template). After dismantling the first concrete formwork, remove the surface to make the joint surface waterless, clean and free of sundries.
2. Insert the water stop into the reserved groove. If no groove is reserved, the vertical joint can be pasted with adhesive in full length, or the water stop can be fixed with cement nails and wooden strips; Horizontal joints can be directly pasted on the concrete surface. Concrete should be poured as soon as possible after the water stop is pasted. In the process of installation and pasting, the water stop should be prevented from swelling, pollution and water absorption, so as not to affect the use effect.
3. This product is preset on the interface between concrete construction joint and post-pouring belt. After the second pouring of concrete (that is, in the state of being wrapped by concrete), when it swells with water, it can completely block and block the leaking water source. High expansion ratio and strong fluidity. The waterstops placed in construction joints and post-pouring zones have strong balance and self-healing functions, and can automatically block new tiny cracks caused by settlement.
4. For the completed project, if the gap leaks, the water stop can be used to stop the leakage again. The waterproof and anti-seepage effect is better than that of traditional steel plate and rubber plastic water stop, and the construction method is simple and easy, saving labor and time. The main materials are inorganic mineral raw materials, which have the characteristics of aging resistance, corrosion resistance and no pollution.
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