When it comes to water stops, one of the main considerations is whether they're Hydrophilic rubber or Non-swelling rubber. In addition, you'll want to consider the durability of the material and whether it's waterproof or not. Fortunately, there are a number of different types of waterstop available. This article will help you decide which type of waterstop is right for your project. You can also learn about Hydroplastic vulcanizate (TPV) and Polyvinyl chloride waterstops.
Hydrophilic rubber waterstops
The Hydrophilic Waterstop Market is segmented into three regions: Asia-Pacific, Europe, and North America. Asia-Pacific accounts for the largest market share, with a compound annual growth rate (CAGR) of 6.5% between 2017 and 2022. Europe, on the other hand, dominates the market with a share of 21%. This market trend is expected to continue into the next few years.
A hydrophilic waterstop is a type of swellable water bar that reacts to contact with water. As water passes through it, the water-stop expands and fills the void. It does not damage the structure and can be installed around non-moving construction joints. They are also easy to install, and adjacent roll ends can be attached without using heat welding. These waterstops are usually applied to the outside of a concrete wall to maintain water-tightness.
The materials used to make waterstops are important to their performance. They must be made from high-quality raw materials free of defects. Different waterstop materials have different characteristics and properties, and a specifier must choose the best material for each application. Hydrostatic pressure and joint movement are the primary reasons why water can penetrate into below-grade concrete buildings. Because of this, waterstops are often specified at all joints of concrete below grade.
Non-swelling rubber
A hydrophilic, or water-loving, waterstop consists of a specialized rubber compound, which swells upon contact with water. Its main function is to prevent water from infiltrating a structure or breaching a joint. A hydrophilic waterstop has excellent sealing properties. They are also easy to install. They are widely used in a wide variety of concrete structures.
These waterstops come in a wide variety of thicknesses and are manufactured in strips or rolls. Their profile is small rectangle-shaped, and their diameter reduces approximately 40% when stretched. They can be used for walls and other non-moving construction joints. These types of waterstops are easy to install, as the adjacent ends do not need to be heat-welded together. They adhere to cured concrete without the need for a heat-welding process.
The preparation of a water-swelling rubber involves selecting the appropriate hydrophilic components. These components include natural polymers and superabsorbent resins. These materials are widely used because of their high water-absorption and water-retaining properties. Superabsorbent resins, which are a good match for a water-resistant waterstop, are typically composed of starch and hydroxyl groups.
Hydroplastic vulcanizate (TPV)
TPV (thermoplastic vulcanizate) is a material made of rubber and plastic. It has higher mechanical properties and superior chemical resistance than traditional waterstops. Unlike traditional waterstops, TPV is free from fillers, plasticizers, and stabilizers. Its composition is mostly composed of recycled thermoplastic elastomeric rubber. TPV is inert to acids, glycols, and ketones.
Polyvinyl chloride
A polyvinyl chloride (PVC) waterstop is a durable and flexible elastomeric material used to prevent the passage of water through concrete. These waterstops contain a plasticizer, stabilizer, and an elastomer. Waterstop manufacturers say it is important to choose quality raw materials. Since there are several types of waterstops available, the specifier should choose the most appropriate one in consultation with the manufacturer.
A waterstop is a non-water-swelling component that fits tightly into a concrete expansion joint. Typically, the waterstop has two ribs on the wall, one on each side of the joint, and one in the centre. Each rib is connected to the waterstop by adhesive bonding. Polyvinyl chloride waterstops are usually formed into a bulb shape. Various rib configurations may be used for the waterstop.
For the most durable Polyvinyl chloride waterstop, a manufacturer should ensure that it satisfies a standard for tensile strength, tear strength, and brittleness temperature. Polyvinyl chloride waterstops should meet the requirements of the Canadian General Standards Board (CGSB 41-GP-35M).