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Polyurethane crack injection is undoubtedly the most effective leakage crack repair method in concrete. The widespread use of polyurethane, sometimes called urethane or mortar, for concrete crack injection is an inherent property of low viscosity polyurethane injection resins for sealing applications. Polyurethane crack injection is widely used in construction, commercial and residential applications.
Properties of Polyurethane Injection Resin
Polyurethane is a liquid injection resin that is injected into concrete cracks, rock crevices, expansion joints and other voids in concrete structures. When polyurethane is used in concrete crack injection applications, it is injected into a crack and within minutes the polyurethane undergoes a chemical transformation from liquid to solid. The popularity of polyurethane resins due to their versatility comes from the properties of polyurethane. It has a very short drying time, making it ideal for active sealing. The extremely low viscosity of the injection resin allows sealing even cracks with a width of less than 0.2 mm. Water from the foundation crack actively repairs the area, whether or not it is infiltrating or damp. It has a very short cure time, making it ideal for active seepage isolation. There are thousands of polyurethane resin formulations that are useful for repairing foundation cracks. This is because the viscosity and drying time of the polyurethane resin can vary and can be controlled. After drying, polyurethane is highly flexible. It allows movement within the structure and keeps it sealed. It seals leaks in concrete structures. Polyurethane crack injection is used in civil construction due to its flexibility in application, as well as its reliability in repairing damage and cracks in concrete structures. Polyurethane crack injection is the most effective and cost-efficient method of repairing leaking cracks in main concrete materials. When polyurethane injection resin is applied to very dry areas without water, it does not foam immediately but gradually hardens with moisture in the air. When it completes its cure, it becomes an elastic and impermeable mass and provides water insulation. Cured polyurethane injection resin is incompatible with weak acids and bases, most organic solvents and micro-organisms.
Some of the Polyurethane Injection Applications
Injection application to foundation curtain construction waters, Injection application to treatment plants, Injection application to pumping stations, Injection application to canals, Injection application to sewage treatment plants, Injection application to high voltage electricity pits, Injection application to chemical storage areas, Injection application to dams, Injection application to diversion tunnels, micro tunnels and TBM tunnels Injection application to dam walls, Injection application to water dykes, Injection application to railways, highways and crossings, Horizontal injections to prevent water from entering the pits under the building, Injections to prevent building collapses during excavation, Injections to prevent water leaks around the sewerage, Injections of self-drilled drainage pipe holes, Injection applications to underground structures and underground water.
Frequently Asked Questions
Where is Polyurethane Injection Applied?
When polyurethane injection resin is applied to very dry areas where there is no water, it does not foam immediately but gradually hardens with moisture in the air. When it completes its cure, it becomes an elastic and impermeable mass and provides water insulation.
What is Polyurethane Injection and What Does It Do?
Polyurethane crack injection is undoubtedly the most effective leakage crack repair method in concrete. The widespread use of polyurethane, sometimes called urethane or mortar, for concrete crack injection is an inherent property of low viscosity polyurethane injection resins for sealing applications. Polyurethane crack injection is widely used in construction, commercial and residential applications.
