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Epoxy Injection is the single best solution for repairing cracks in concrete. Skyline utilizes a wide variety of high-strength epoxy and urethane resins which get injected into the cracks under pressure by special pneumatic machines. This system ensures that the crack will be thoroughly filled with epoxy, making the crack not only structurally sound but preventing water intrusion and subsequent spalling.
The concrete repair industry has experienced an ever increasing demand for maintenance of concrete structures. This demand has driven the need to develop new technology to both economically and functionally repair concrete structures.
Our experience and expertise in a wide range of services gives us an edge in completing all types of concrete repair projects from maintenance repairs to highly specialized items such as cathodic protection or carbon fiber reinforcement.
Cracks in poured concrete occurs as buildings age and settle. Once a crack forms, the foundation waterproofing is compromised and may cause significant seepage issues. Typically wall cracks form around windows, (where the wall is weaker) or in corners. Either vertically from the bottom to the top of the wall or horizontally from one side to the another unless injected and stopped at its current location.
Injection sealing of the crack cavity will address the problem and can be done from the inside with minimal disruption. Our approach involves drilling a series of holes every 6 to 8 inch intervals along the run of the crack. Each access hole is 3/8″ in diameter, set perpendicular to the run of the crack and angled at 45 degrees. The drilled hole crosses the crack at the approximate centre of the wall being treated, thus ensuring the most effective distribution of sealant.
Metal injection ports are placed in each hole. A polyurethane resin with an expansion and drying activator is then injected with up to 6,800 PSI in the crack cavity. Once excess resin begins to emerge from the visible crack face the crack cavity has been completely filled. The resin will then set and expand to 20 times its fluid volume ensuring the crack is sealed and water tight. The same process is used for Epoxy injections although this is typically used more commonly for dry structural purposes.
High strength epoxy is used where the concrete has been broken by tension and the crack has compromised the strength of the structure. Epoxy injection bonds or welds cracks as narrow as 0.002 inches together and its high tensile strength improves the structure strength.
Epoxy will restore the structural integrity of the crack or defect in the concrete by filling the crack with a high-strength adhesive. This method consists of installing injection ports into drilled holes at close intervals along horizontal, vertical or overhead cracks and pressure-injecting epoxy. Cracks injected with epoxy need to be dormant and not actively leaking.
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