PVC Water Stopper

Riddhi Infratech Solutions are one of the leading Manufacturer and Supplier of PVC Water Stopper in India. PVC Water Stoppers are the flexible plastic strips that are used to provide a physical barrier to water. The barriers can be at concrete joints in basements, water-retaining structures like water tanks, swimming pools, structural foundations and other constructions of below ground level. Water stoppers are also known as water bars and seal construction joints. In a typical water stopper, there are two identical halves on both sides of the central bulb. They serve as an additional extension aiming to increase the path length for water entering behind the edge of water stopper.

Compounding of PVC Water Stopper

Anti-ageing customized plastic compound is used for manufacturing the PVC water stoppers. Alongside, it has PVC as a base polymer. Moreover, the properties it exhibit are high elasticity and tensile strength, immunity to corrosion, excellent weather resistance, unaffected by acids, alkalis, metals, salts and other chemicals. Other properties include lower water absorption, high hydrostatic pressure withstanding capacity, heavy turbine shock bearing alongside earthquakes and floods.

Application in construction industry

  • The PVC water stopper acts as a sealant at RCC Masonry concrete joints alongside preventing any water seepage through the joints.
  • The PVC water stoppers can withstand expansion or contraction movements at the joints. Also, they can effectively take care of displacement or deflection that arises due to temperature, differential settlement of foundations and geo disturbances causing seismic forces such as earthquakes. This eliminates any risk of cracks.

 

  • Selection of appropriate PVC water stopper:

  • Ribbed Type – It has a multi-purpose water stopper design to be used for the expected differential settlement of poured concrete and a firm concrete grip desired.
  • Dumbbell Type – With greater variation in temperature, expansion and contraction of joints happen. Dumbbell type water stoppers are the suggested ones for these cases.
  • Kicker (Surface Type) – Where the embedded types cannot be used owing to interference of steel reinforcement, these are placed externally.

 

  • Installation procedure:

    During installation, using small wires, the water stoppers are tied to the steel framework through the eyelets. Also, certain metal clamps are used to grip the water stop seal and keep it in proper position. Initially, half of the water stopper is places in the concrete. It leaves the other half extended. Then, the other half is embedded that leaves the centre bulb free for expansion and contraction movements.

    Applications Of PVC Water Stoppers

  • Public Utilities: For bridges, road embankments, tunnels, water tanks, water filtration systems, swimming pools, sewage plants, clarifiers, dams, canals, reservoirs, aqueducts and irrigation projects cooling towers.
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  • Buildings: For basements, foundations slabs, masonry joints, retaining walls, terraces, overhead & underground water tanks and
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  • Industries: For fertilizer steel, chemical plants, waste treatment plants, atomic reactors, thermal & hydro power stations and shipyard & docks.
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  • Precautions to take while water stopper installation

  • They are vulnerable to damage during the construction process
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  • The concrete compaction around the water stopper should be taken care of. If not, it can dislocate and lead to a risk of honeycomb formation. This might result in leakage through concrete instead of the joint.
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  • Methods for joining PVC water stoppers with heater blade

  • Water stoppers can be joined on the site using a simple electrical heater blade.
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  • Water bars having the same width and design should be sharply levelled with a knife at the
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  • Turn on the Electric Heater Blade. Wait till it becomes hot
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  • Place the water stopper on both sides of heater blade. Press it until it melts but without burning
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  • Remove the heater blade upward
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  • Join the molten ends quickly. Hold them together firmly for approximately 20 to 30 seconds.