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Waterstops are static seals installed between joints of the concrete structures to avoid the passage of water and other fluids. The waterstop is embedded in the concrete or across and/or across the joint. To be able to select the best waterstop for that application there are many facts to consider. Such as, the structure type, joint type, joint movement type, chemical containment requirements, along with the method for securing the waterstop in place (hog rings, grommets, etc.)
Concrete waterstops rose to prominence as concrete use took over as the standard choice in commercial and residential construction from the mid-20th century. After concrete bridges started dotting the map in early 1900s along with the Hoover and Grand Coulee dams were made concrete from the 1930s, it took hold because the most used material in new construction. Due to porous joints created when dispensing concrete in sections, the requirement for waterstops was immediately apparent. PVC was the predominant choice for waterstops through the 1940s and continued for decades which is still the most frequent waterstop material.
Waterstops utilize techniques during installation that force seals to embed into the concrete. In a few applications, it is vital to repel water and liquids entirely. Special circumstances need the protection against liquids from moving past the barrier created by the waterstop. This feature is a member of having to keep solvents, hot petroleum oils and chemicals from making its well past the seal itself. Additional features include alternative physical forms like strips. A strip is capable of doing covering a massive area when purchased in large rolls or pastes.
Waterstops are essential for construction projects where concrete is employed to retain water or exclude it. Most of these applications in residential, commercial and industrial construction include:
Dams and water reservoirs
Canals, locks, aqueducts and culverts
Bridges and tunnels
Water and wastewater treatment facilities
Containment structures surrounding oil, chemical along with other kinds of refineries
Storage tanks, both above and underground, for liquids like fuel or chemicals
Basements and concrete foundations for homes and also other buildings
Specifications are made accessible in the next four areas:
Joint type application
Joint movement requirements
Chemical containment requirements
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