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Bunds are structures designed to contain tank leaks and spills. If a tank experiences a leak, the berm is a barrier to contain all the liquid. Bunds are especially important when tanks are raised above ground level, as they help prevent leaked materials from entering areas. The bund wall is designed to prevent spilled substances from seeping out, and the area within the bund usually has a floor.
Not all bunds require lining; it typically depends on the type of bund and what is being stored in it. Bunds made of steel suffer corrosion problems caused by water, while brickwork and concrete are porous. The most commonly lined bunds are concrete. Installing a polymer-based lining like Polyurea lining has been proven to be the most effective bund lining system. Our polyurea coating material can be applied to all types and sizes of bunds. They also benefit from being applied year-round, even in sub-zero temperatures.
Our team of specialist lining applicators will provide you with excellent service. Our linings have excellent chemical resistance and can tolerate temperatures up to 240 degrees!
Dirty water from leaking plants and equipment was leaking through the slab and entering clinical areas below, posing a hygiene risk and causing additional issues with the flooring.
All surfaces had to be prepped with vacuum-controlled diamond tipped grinding to remove poorly adhered existing coatings and ensure perfect adhesion of the bund lining.
Once prepared, bund walls were constructed using concrete blocks bonded to the slab using a high-strength mortar. The same mortar was used to create a fillet detail at the floor/wall intersection to isolate this potential movement point from the new bund lining.
Any cracks in the slab were first sealed using ArmorFloor™, a two component, aliphatic polyaspartic coating, before being isolated from the new bund linings using bond breaker tape. These areas were then reinforced locally using a chopped standmat incorporated into the primer.
To ensure a seamless and pinhole-free bund lining, the new bund walls received a cementitious grout coat to remove the profile from the concrete blocks.
The bunds were then primed using a damp-tolerant primer to ensure excellent adhesion of the new bund lining/tanking system. This was reinforced over the cracks using chopped strand matt for additional strength.
Two coats of ArmorLiner polyurea coating were applied throughout to a thickness of 1mm to create a seamless and flexible lining.
Finally, as a final added safety measure, the tops of the walls were marked in yellow to highlight the trip hazard of the bund walls.
Want to learn how you can find a professional bund lining expert in your area or become one yourself? ArmorThane has applicators all throughout the world as well as applicators in nearly every state in the US. Join our large applicator network today and get started in a career in bund lining.
We provide personal training to get your new polyurea or polyurethane system up and going. Plus, we have a dedicated support team ready to assist you anytime you need us.
