Bridges, Viaducts, and Tunnels
Protecting and extending the lifespan of bridges, viaducts, and tunnels is critical for structural integrity. Polyurea coating systems offer superior protection against the harsh environmental conditions these infrastructure elements face, providing significant advantages over traditional methods. Polyurea exhibits excellent resistance to dynamic loads, vibrations, and ground movements due to its high elasticity and rapid curing properties. The waterproof barrier it creates after application helps protect reinforced concrete structures from corrosion. Corrosion is one of the most significant factors leading to the weakening of reinforcement and structural damage in bridges and viaducts. Polyurea coatings also offer high resistance to chemicals, UV rays, and abrasion. They are particularly used inside tunnels to prevent water leakage and provide insulation. The rapid application time minimizes the impact on traffic flow and reduces maintenance costs. Our polyurea systems, formulated in accordance with EN 1504-2 standards, offer long-lasting and reliable solutions. Thanks to its high adhesion property, it adheres perfectly to the surface and eliminates the risk of delamination. It also meets aesthetic requirements with various color options.
Features
High Elasticity - Adapts to structural movements with an elongation capability of over 400%
Fast Curing - Cures in seconds, shortening the application time
Waterproof - Prevents corrosion by creating a completely waterproof barrier
Chemical Resistance - High resistance to acids, alkalis, and salts
Abrasion Resistance - Provides long-lasting protection against high traffic and heavy loads
Wide Temperature Range - Maintains its properties at temperatures between -40Β°C and +80Β°C
Benefits
Long-lasting Protection
Polyurea coating extends the lifespan of bridges and viaducts, providing long-term cost savings.
Reduced Maintenance Costs
Due to its durable structure, it requires less maintenance and reduces repair costs.
Fast Application
It can be applied quickly without disrupting traffic, thus minimizing operating losses.
Increased Safety
Increases the safety of bridges, viaducts, and tunnels by preserving structural integrity.
Application Process
Surface Preparation
Concrete surfaces are roughened by sandblasting, milling, or shot blasting. Grit blasting (SA 2.5 standard) is applied on steel surfaces. Weak layers, dirt, oil, and mold residues are completely removed. Cracks and joints are repaired with epoxy or special repair mortars.
Primer Application
A suitable solvent-free epoxy primer or polyurethane primer is applied to the surface with a roller or airless spray. The primer ensures that the polyurea adheres strongly to the surface. Two coats of primer may be required on absorbent surfaces.
Polyurea Coating
A minimum of 2mm polyurea is applied using heated and high-pressure spray machines. It cures within seconds after application. Critical points (expansion joints, detail junctions) can be manually addressed first.
Top Coat (Optional)
A UV-resistant polyurethane top coat can be applied in areas with UV exposure. Optional colored topcoat or anti-slip additive can be added for tunnel interiors.
Application Process Summary
Our professional application team meticulously manages all processes from surface preparation to top coat application, providing long-lasting and high-performance polyurea coating solutions. Our applications comply with EN standards.
Technical Specifications
Our polyurea coatings are manufactured and tested in accordance with international standards. Thanks to its high-performance structure, it can be used safely for many years.
Thickness
2-4 mm
Curing Time
5-30 seconds
Tensile Strength
20-25 MPa
Elongation
%300 - %500