Epoxy Grouting-Concrete Epoxy Injection
Cracks in concrete are filled by injecting a low viscosity epoxy resin into the crack. The epoxy resin is injected under pressure which allows it to penetrate the full depth and path of the crack, providing a complete crack repair. Not only is the crack sealed, but structural strength is gained as the epoxy resin is much stronger than the original concrete.
Epoxy’s high tensile and bonding strength prevents further elongation and yawning of structural cracks. However, the cause of the structural stress itself must be determined and resolved in order to assure proper repair.
Our personnel, equipment, and product partners have allowed us to provide epoxy injection services on an array of bridges, buildings, storm drains, and many other concrete structures.
PU INJECTION–Polyurethane Grout Injection
We provides professional polyurethane grout injection service for the refurbishment of concrete and masonry structures. Polyurethane grout injection is used to stop water infiltration and seal joints. There are two main categories of polyurethane grout injection products: hydrophobic and hydrophilic.
Hydrophobic grout polyurethanes are water-activated, cure to a constant volume, flexible, and are not affected by water or dryness. Characteristics such as these and the good adhesion employed on wet and dry concrete make hydrophobic grout polyurethanes the product of choice for sealing infiltrating water in moist and wet applications with varying moisture cycles.
Hydrophilic polyurethane grout is also used for stopping water infiltration, however due to water being a component of the product’s chemical structure, unlike hydrophobic grouts, wet and dry cycles may cause the material to shrink and swell. Hydrophilic polyurethane grouts are cured upon reaction to water and are flexible.
Polyurethane grout injection is commonly used for stopping water infiltration and sealing joints in the following applications: defective concrete, concrete joints, limestone, brick, pipe intrusions, waste water tanks, drinking water reservoirs, reservoirs, sewers, manholes, tunnels, and dams.