Waterstop Sealant - Forms and Uses

Waterstop Sealant - Forms and Uses

Waterstop Sealant - Forms and Uses


Water stop

Water stop or sealant is a roll of plastic or metal used at expansion joints or casting joints in order to prevent leaks. Its length reaches 30 meters and width from 20 to 30 cm. Water stops are widely used in water facilities due to the wide use of concrete structures in infrastructure projects.

The importance of the chord stop

The water stop acts as a barrier at the joints to prevent water leakage due to the large number of fins intertwined with the concrete, making it difficult for any leaking water to take crooked and difficult roads

Where to use the water stop

It is used at the casting joint between the wall and the base, which is called the kicker

Used at the casting separator found in floor slabs

Used at the horizontal casting joint located in the wall

Used at the vertical casting separator in the wall

It is used at the casting joint between the ceiling and the wall

Areas of use of the chord stop

It is used in the water tank when pouring reinforced concrete for the tank floor, where a chord stop is placed with the tank floor from the side of the tank wall.

And 12 cm of the water stop is installed in the objects and the remaining part is visible to the top and is inside the wall of the tank when concrete is poured, or it can be placed when pouring the wall in two stages between the first concrete and the second concrete. In general, a water stop is used when a separator appears in the walls or pool floor or water tank.

As with the chord stop

Water stops are PVC sectors that are used to isolate water, external and central fixation. A water stop is placed at expansion joints and landing joints, and at every stop for pouring, whether the tank is overhead, buried or ground.

The material from which the water stop is made must be non-degradable so as not to adversely affect the water inside the tank.

Waterstop Specifications

Water stop is designed from the best grades of PVC to be flexible and to facilitate the installation process when starting work and pouring concrete.

chord stop dimensions

There are multiple dimensions of the water stop, including the following dimensions

Width: 20, 25, 30 cm

Height: 10, 15, 30 m.t

 Thickness: 10, 15, 20 mm

Where to use the water stop

Water stop is used in the following places :

Lifting and pumping stations - Valve rooms - Concrete tanks - Manholes poured on site - Treatment plants - Purification plants - Box ferries - Sedimentation rooms

The chord stop is welded in several ways, including the use of a knife or a metal heater in order to heat the two ends of the chord stop, and then the two ends are glued to each other face to face.

The need to use a water stop arose due to the weakness in the areas of the casting joints, which leads to water leaks and poses a danger to the building.

Waterstop shapes

There are many types of chord stops, including a one-section shape that does not have any deflection in the middle, and it is used at horizontal joints of floors and at joints for superstructure of roofs.

There is another type with a single section, with a small thickness and a large number of lateral connecting fins, which is used at the vertical joints of the concrete walls.

The shape of the chord stop section varies according to the place where it will be placed and according to the purpose of its use. Therefore, we find a difference in the number of installation holes, length and thickness, and the rate of contraction and expansion.

Thus, we have explained to you a lot about the details of the water stop, the places of use and the most important specifications, and you can find out many specifications and details for various products and materials through our website as well.