Waterproofing Rehabilitation of a Major Underpass – E11 Highway

About the Project

As part of a rehabilitation and waterproofing programme for a major underpass on the E11 Highway in Abu Dhabi, Baumerk was selected to address long-term water ingress, leakage through construction joints and durability concerns. Baumerk Crystal 25, a cement-based crystalline coating, was applied to the prepared concrete surfaces, where it penetrates capillaries and micro-cracks and forms insoluble crystals that block water while letting the concrete breathe and self-heal future hairline cracks.

At construction joints, cold joints and interface zones, Baumerk Swellband A was installed as the primary joint sealing system, expanding on contact with water to seal against continuous hydrostatic pressure. An asphalt layer over the treated surfaces completed the system, delivering long-term resistance to leakage, greater concrete durability, lower lifecycle costs and a longer service life for the underpass. Swellband A is an acrylic polymer-based swelling waterstop that expands in a controlled way on contact with water, so it does not swell prematurely when cast into concrete. Fixed to the joint surface with Super Tack 290 before concreting, it seals construction joints and is also suitable for areas exposed to sea water.