? Decoration of common sense of the water stop construction knowledge in detail

When it comes to water stop strip, many people actually do not know very well, or even have not heard of. However, in the construction of a variety of projects, the figure of the water stop strip can be seen everywhere, it is widely used in a variety of large and small construction projects, including ordinary home improvement will also see its appearance. So what exactly is the water stop strip? It has what kind of characteristics? What is the knowledge of the construction of the water stop strip?

Water stop construction knowledge

First, the introduction of water stop

Water stop is a new type of waterproof material for construction by polymer, inorganic water-absorbent expansion material synthesized with rubber and additives with self-adhesive properties. Water can absorb water volume expansion, squeeze the gap between the old and new concrete, the formation of impermeable plastic gel. The product passed the ministerial appraisal in June 1988 in Beijing, won the 1991 Scientific and Technological Achievement Award, and issued a certificate to become a nationally recognized qualified products. The product for the solution of the leakage of concrete construction seams has created a new road, filling a gap in China's waterproofing. Product quality has reached the world's leading level.

Performance characteristics:

The product into a gray-black putty-like colloid, with good weather resistance, good resistance to aging, seepage and stop leakage, corrosion resistance, easy operation, low cost and so on.

This product has a water-immersed expansion, "water to stop water" effect; with slow expansion, water immersion 186h expansion rate ≤ 50% of the maximum expansion rate; this product is easy to install and construction, low price, and non-toxic non-polluting, no dissolved material precipitation in the long immersion; compared with other hydrophilic expansion stop the biggest difference is that it is hydrophilic expansion of long-term repeated expansion is still not lost. No loss.

Main uses:

Water stop is a variety of underground construction projects, water conservancy projects, transportation tunnel projects, power plants, cooling towers, municipal water supply and drainage and other concrete masonry and concrete engineering construction joints seepage and leakage prevention of an up-to-date, the most ideal material, completely solved the problem of the rubber and steel water stop belt friction prone to produce bypassing the seepage problem.

Water-stop construction knowledge

Second, water-stop construction

Steps:

1, reserved positioning shallow groove: horizontal concrete pouring is not yet dry, with a 10 × 30 mm strip of wood is reserved, the vertical side of the mold in the template nailed to a 10 × 30 mm strip of wood, dismantling of the template. When the vertical side is mounted, nail a 10×30mm wooden strip on the template, and form a 10×30mm shallow groove after removing the mold.

2. Before pouring concrete, set the rubber water stop strip in the reserved slot and nail it firmly with steel nails.

3. The surface of construction joints should be solid, dry, no oil stains, no floating soil, no water, loose concrete should be removed. Attention should be paid to fire prevention, waterproof, such as inadvertently foamed by water, should be cooled and dried before use.

4, water stop strip lap can be cut into 45 ° splicing knife, and fixed with steel nails.

Suggestions:

1, in the installation of a reserved type of paste, in the first pouring of concrete need to be reserved on the waterstop placement groove (can be in the template of the nail wood reserved). After removing the first poured concrete template, clear the surface, so that the seam surface is waterless, clean and free of debris.

2, the water stop strip embedded in the reserved slot. If not reserved groove, the vertical joints can be added with adhesive full-length paste, or with cement nails and wooden fixed water stop strip; horizontal joints can be directly pasted on the concrete surface. The concrete should be poured as soon as possible after the water-stop strip is pasted. In the process of installation and paste, should prevent the water swelling water stop strip contaminated and swollen by the role of water, so as not to affect the use of the effect.

3, the product is pre-positioned in the concrete construction joints, pouring joints on the interface, the second pouring of concrete (i.e., the state of being wrapped in concrete) water expansion can be completely blocked, blocking the leakage of water. It has high expansion rate and strong mobility. Placed in the construction joints, after the pouring joints of the water stop has a strong balance of self-healing function, can be blocked by itself due to settlement and the emergence of new tiny cracks.

4, for the completed project, if the gap leakage, the water stop can be used to re-plug the leakage. Waterproofing, seepage effect is better than the traditional steel plate, rubber and plastic waterstop, and the construction method is simple and easy to carry out, save labor and time. The main material is inorganic mineral raw materials, with aging resistance, corrosion resistance, non-polluting and other characteristics.

Water stop construction knowledge

About water stops you have understood it? Read my introduction to these you have a new experience? The above is about the water stop strip, if you want to know more about the water stop strip, please pay more attention, will provide you with more complete, more detailed and updated information.