Application of water-swelling water-stop glue in hydropower project
Abstract: In this project, the inlet of the hydropower station is formed by two pourings. The joint surface of the pier wall concrete and the second stage concrete in the first stage is vertical. The original design did not make a water stop design. And affect the structural stress. In this project, a 2.2m long 1cm thick steel lining is used for connection between the water inlet and the water inlet pipe, considering that the contact between the concrete and the steel lining is not easy to cause water leakage. In this project, two water-swelling water-stopping glues are used to prevent water leakage at the joint surface.
Water-swellable waterstop glue (DZ606 / DZ998) is becoming more and more important for waterproofing concrete joints in the field of civil construction, especially when constructing underground structures. In the past, various water stop plates and underground structures without water leakage were used to achieve the purpose of water stop. In addition to choosing a suitable water stop plate, it is necessary to pay attention to adopt appropriate water stop plate construction methods and strictly guarantee the quality of concrete pouring.
Water-swellable water-stopping glue (DZ606 / DZ998) is a water-swellable water-stopping material that absorbs immersion in water and expands itself to block water flow. This manual is a brief introduction to the construction method of water-swelling water-stopping glue (DZ606 / DZ998), maintenance after construction and precautions for pouring concrete. In order to achieve the purpose of correct construction.
Construction method:
1. Clean the dust on the construction surface, and there is no special requirement on whether it is smooth, wet or dry.
2. Put the sealant into the glue gun, open the front end, screw on the glue nozzle, and cut the size and width of the glue nozzle according to the requirements of the seam.
3. Use the glue gun to squeeze the sealant into the construction joint.
4. Apply the sealant until it is cured, avoid contact with water.
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