Epoxy and Chemical Grout Injection

Chemical Grout Injection
Chemical grouts are materials which mix readily with water at the time of application. As such, chemical grout provides good penetration of wet joints, cracks and surrounding soil. Chemical grout reacts with the water to form a waterproof solid, stopping the water that is infiltrating the building or structure. There are generally two types of polyurethane grouts- hydrophobic and hydrophilic. Hydrophobic grouts work by repelling water through expansion; hydrophilics react and expand when they come into contact with water. Both grouts are ideal for use on wet substrates and can plug a leak in seconds. Suitable uses for polyurethane injection are leaking basemensts, cracked concrete, tunnels, dams, and most below grade applications.

Epoxy Injection
Epoxy injection provides a permanent repair to structural cracks in concrete and masonry. This procedure glues back together fractured concrete on both horizontal and vertical planes by injecting epoxy resins or gels directly into the crack under constant, low pressure. Unlike caulking and sealing, epoxy injection bonds the concrete back to its original structural integrity. Added benefits are that it aids in the waterproofing of a structure by preventing leaks through the cracks and prevents moisture from corroding steel re-bar.