Waterstops In Concrete Walls

Waterstops for chemical industrial environmental applications waterstop plays a critical role in the integrity of concrete structures.

Waterstops in concrete walls. Waterstop plays an important role in waterproofing a concrete structure especially joints the weakest part which is liable to leakage of water or chemical liquids. Structures such as water treatment plants reservoirs locks dams and below grade facilities most likely have a waterstop system in place. A waterstop installed in concrete joints is an important component of an overall waterproofing design to protect below grade portions of a concrete structure. Waterstops are widely used for various concrete structures such as dams bridges tunnels culverts canals water reservoirs storage tanks swimming pools waste water treatment plants and retaining walls.

B reinforced walls c reinforced concrete framework structures d uninsulated roofs cornices. These products use in construction joints i e. Waterstop provides a fluid tight diaphragm when embedded in and running through concrete joints. Pvc waterstop eva waterstop rubber waterstop steel side waterstop and swelling waterstop.

The minimum concrete requirements must be met to ensure the performance of cs 231. Greenstreak pvc waterstop is a flexible pvc waterstop for joint waterproofing. Several factors must be considered when selecting a waterstop. Waterstops or waterbars are premanufactured joint filler used to prevent the transmission of water through the construction joint.

Use with pvc waterstops the following image is recommended joint detail for use of cs 231 for all applications with pvc waterstops. Sika greenstreak s pvc waterstop is suitable for potable water contact and meets nsf ansi standard 61. Waterstops are mainly used for the waterproofing of below grade concrete structures like tunnels water treatment facilities parking structures water reservoirs sewage treatment facilities and marine structures. Cold joints is a good design practice for building foundations with or without a positive side waterproofing membrane.

So waterstops are designed as a fluid tight diaphragm embedded in or running along the joints to solve these problems. Embedded in concrete across and or along the joint waterstops form a watertight diaphragm that prevents the passage of liquid through the joint. 5 20 30 20. Heated multi storey buildings a internal walls and ceilings concreted monolithically in one line as above concreted in sections not exceeding 15 m in length with spaces left over for later concreting.

Concrete structures are only as watertight as the waterstops that join them. Those requirements are a structural concrete with a minimum of 3000 psi and a minimum 2 50mm of concrete coverage.