|Areas Repaired||Expansion joints, ledge beams|
|Repair Types||Expansion joint and ledge beam waterproofing|
|Issues||Leaking expansion joints and ledge beams|
Expansion Joint Repair
Normally, when there is a failure of waterproofing membrane over the surface of expansion joints, the entire membrane must be removed and reinstalled. The excavation required by the traditional repair method is quite costly, but can be avoided with the use of PolyFlex expansion joint application.
What we do is drastically different: we drill injection ports and inject our specialized liquid material which turns into soft rubber. It has tremendous adhesion power capable of binding cracked concrete, and displacing any accumulated water, not allowing it to re-enter. The concrete slabs can still expand and contract due to the nature of the materials injected. At the same time, such injection seals any crack in the membrane, preventing any future leaks from recurring.
This type of application method has been proven to create permanent waterproofing with a high degree of success and long-lasting results. Application from within the structure will avoid unnecessary expenses of top-side repair.
Ledge Beam Repair
Ledge Beam Waterproofing involves the same process as expansion joints, with the added challenge of having to drill through 40 centimeters of Ledge Beam concrete. To ensure proper drilling, a guided rail drill is used. It is essential to make precise calculations, so that drill port will end up in between the concrete slabs at the top of the Expansion Joint opening. Filling the entire volume of the expansion joint with soft rubber will remove all accumulated water, create permanent adhesion to concrete slabs, and follow to the surface membrane crack and seal it. This type of application method has been proven to create permanent waterproofing with a high degree of success and long-lasting results. Application from within the structure will avoid unnecessary expenses of top-side repair.
PolyFlex is a liquid injected flexible material used to repair expansion joints. It is designed to allow expansion and contraction of expansion joints up to 180%. Injecting PolyFlex completely removes any collected water and repairs membrane cracks. This type of repair prevents hydraulic pockets from reoccurring and contributes to long-lasting waterproofing results. Since it is soft and flexible, it binds itself perfectly to any concrete surface and does not delaminate.
Application of PolyFlex from the negative side (from inside of a parking garage or an elevator shaft) reduces costs by 60%, when compared to the traditional method of repair.