Tenera was engaged to provide detailed specifications to ensure durable waterproofing results for the elevator pit of a low-rise commercial building on Hurontario Street in Mississauga. Given that the pit serves a piston-operated elevator, special considerations were necessary for waterproofing around the piston housing to account for constant vibrations and potential water infiltration risks.
Repair Methodology
The repair process began with comprehensive surface preparation, including cleaning and targeted crack repair. Cracks were first opened through chipping to remove any loose material and contaminants. An industrial-strength adhesive was then applied, followed by a specialized crack filler to restore the integrity of the concrete.
Subsequently, attention was given to waterproofing the cold joints, which are critical areas where the floor slab meets the walls. These locations are prone to leakage due to being natural weak points in the concrete structure. The joints were cleaned out via chipping, and a continuous patch was installed along the entire joint at a 45-degree angle to reinforce the area. This was followed by coating the joints with a waterproofing material to provide an additional layer of protection.
The final step involved applying a polyaspartic waterproofing membrane across the entire pit floor, extending partially up the walls to cover all treated areas, including the cold joints. This seamless application of the membrane ensured comprehensive sealing of the pit, providing a resilient and long-lasting waterproof barrier capable of withstanding the demanding conditions associated with piston-operated elevator pits.
Benefits of Polyaspartic
Polyaspartic membranes offer several advantages for elevator pit waterproofing, making them an ideal choice for demanding environments like piston-operated elevator pits. Their high flexibility allows the membrane to accommodate structural movement and vibrations without compromising the integrity of the waterproofing layer. Polyaspartic membranes also have excellent adhesion properties, forming a seamless barrier that prevents water penetration even in areas subject to mechanical stress. Additionally, their fast curing time allows for quicker project turnaround, minimizing downtime. The chemical resistance of polyaspartic membranes provides durable protection against moisture, oils, and other contaminants commonly found in elevator pits, ensuring a long-lasting waterproofing solution that effectively safeguards both the structural elements and mechanical components.
Learn more about our design applications for elevator pit repair and waterproofing by vising this page: https://www.tenerapro.com/repair-application-elevators
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