PVC Waterstop

General Information

Install PVC waterstops by embedding them in concrete joints. Usually, they act as a continuous watertight valve to prevent any leakage of liquids in constructions joints which are subject to hydrostatic pressure. Waterstops are designed for expansion or contraction joints. Meanwhile, they can accommodate lateral and transverse movements which make them capable to suit the moving joints.

PVC waterstops are extruded form an elastomeric plastic material including high grade polyvinyl chloride, special resin and some chemical additives such as plasticizers and stabilizers. The high material makes PVC waterstops unmatched with a variety of features and benefits as shown below

Usage:

Waterstop prevents water movement through concrete joints in water reservoirs, canals, dams, sewage treatment plants, bridges, stadiums, basements, floor slabs, parking garages, and similar structures. It is important that you hold PVC waterstops securely during concrete pouring and that the concrete is properly compacted to remove voids and porous ares.

Areas of Application:

Structural Engineering:

  1. Bridges
  2. Industrial Building
  3. Power Stations

Water Excluding:

  1. Basement areas
  2. Underground car parks
  3. Tunnels
  4. Retaining walls
  5. Suspended slabs
  6. Pits
  7. Roof slabs

Water Retaining:

  1. Sewage treatment plants
  2. Water treatment plants
  3. Swimming pools
  4. Retaining walls
  5. Reservoirs Damns and Spillways
  6. Bund walls
Types of PVC Waterstops
Center Ribbed Type With Center Bulb

Center ribbed type with center bulb waterstop profiles are fixed generally on the middle of the slab or wall joint of the concrete structure. This profile provides a barrier to water trying either to enter or leave the structure. The central bulb enables it to be used in joints where movement may occur. It can be used in horizontal and vertical applications for expansion, construction joints. The bulb works with both lateral and transverse movement, and the ribs provide better water tight sealing than do non-ribbed types.

blue internal pvc waterstop with bulb
blue ribbed internal central pvc waterstop without bulb
Center Ribbed Type Without Center Bulb

This type is designed for horizontal and vertical construction joints where an economical and easy to install product is required.

Outer Ribbed Type With Bulb

For use in expansion, construction and contraction joints. The flat top bulb section allows support for any joint filler and allows any movement in the structure. The bottom of the bulb has a notch so that should the joint open beyond the capacity of the PVC bulb, the bottom of it will tear along the notch and permit the bulb to open whilst still maintaining the water barrier.

blue ribbed external pvc waterstop with bulb
blue outer ribbed pvc waterstop without bulb
Outer Ribbed Type Without Bulb

For horizontal applications where an already stable support exists, Kivolt outerstop profiles generally require no fixing as they are laid centrally along the joint being formed. For use in construction and contraction joints, where no movement is expected.