Bridges and Highways

Bridges are subject to various internal and external mechanical stresses, which include, attacks from aggressive water, spillages and chemicals, de-icing salts, vibrations and surface strains from vehicular traffic, extreme weathering, and thermal movements.

Concrete technology

Holderchem provides the concrete technology for bridge structures and a wide range of products to achieve highly durable concrete, self-compacting concrete, and high-strength concrete for bridge structures. The BATIMIX products offered include high range water reducers to enhance concrete strength development, flow characteristics and workability, viscosity modifying agents to achieve self compaction even with lesser quality aggregates, hardening set acceleration admixtures to increase the pace of the hydration process, admixtures to reduce shrinkage, air-entrainers to increase frost and freeze/thaw resistance, silica fume to increase the density and durability of the matrix, corrosion inhibitors to protect steel reinforcements, curing agents to significantly enhance durability and fibers to increase resistance to concrete spalling and tensile strength.

Concrete repair

Sound and effective concrete repairs are essential to ensure maintenance of concrete bridges prior to the application of waterproofing and protection systems, which include bonding slurries, corrosion and protection primers, repair mortars for vertical and overhead application, mortars for bridge deck repairs and protection, and self-leveling mortars for resurfacing.

Waterproofing

It is important bridge-deck waterproofing systems accommodate traffic loads and bridge cracks and that they maintain a strong bonding with both the substrate and road surface. In addition to the standard bituminous membranes, which are highly resistant and durable, Holderchem offers state-of-the-art and innovative polyurethane-based waterproofing systems to meet the most stringent bridge waterproofing requirements. It also offers structural and non-structural watertight injection systems for crack sealing concrete structures.

Joint sealing

Joints sealing elements for new bridge construction or maintenance and refurbishment of bridge structure must be watertight, flexible, durable, and highly performant and must exhibit high-temperature stability.

Concrete protection

Holderchem concrete protection systems include hydrophobic impregnations, sealing impregnations, surface coatings, and corrosion inhibitors. They are designed to substantially eliminate structural damages by allowing for significant reductions in steel reinforcement corrosion. Water dispersions of acrylic resin-based surface leveling coatings with crack bridging properties are also available. Liquid siloxane emulsions are used to ensure bridges keep their visual appearance and for masonry protection. Crack injections are done to fill joints or protect structures from rising damps.

Grouting and fixing

To fill voids, holes, and cavities or to embed piping and drainage elements, non-shrink grouts ate commonly used materials.

Structural bonding

Epoxy adhesives are used for bonding concrete, bituminous surfaces, and steel to various bridge elements and for anchoring all types of fittings and equipment.

Holderchem construction solutions of interest include the following:

• Ready-Mix and Site-Mix Concrete[Visit: https://holderchem.net/solution/sln-ready-mix-and-site-mix-concrete]
• Repair and Protection[Visit: https://holderchem.net/solution/sln-concrete-repair-and-protection]
• Waterproofing[Visit: https://holderchem.net/solution/sln-waterproofing]
• Joint Sealing[Visit: https://holderchem.net/solution/sln-joint-sealing]
• Concrete and Metal Protection[Visit: https://holderchem.net/solution/sln-concrete-and-metal-protection]
• Flooring and Pavements[Visit: https://holderchem.net/solution/sln-flooring-and-pavements]
• Tiling and Grouting[Visit: https://holderchem.net/solution/sln-tiling-and-grouting]