Chemical Grouting

Stray Cat is trained and experienced in preventing water intrusion and infiltration through crack injection and curtain (backwall) grouting, and we are one of the only companies in Western Canada with current acrylamide grouting experience. Crack injection involves injecting, into the leaking crack or joint, a resin such as polyurethane that reacts to moisture by creating a strong seal that will move with any future movement of the structure. In curtain or backwall grouting, holes are drilled through the structure and grout is injected into the soil surrounding it, creating a gel/soil matrix that protects the structure by preventing water from getting to it in the future. Acrylamide grout, used in curtain grouting, has the same viscosity as water, and thus can permeate anywhere water travels and cures within a controllable time frame. Once cured, it creates an effective and long-lasting water barrier, while providing superb soil stabilization. These technologies have wide application in mining, transportation (tunnels/subways), water and wastewater treatment, construction, and industry.