At REMTEC, we use the industry-leading Sika® CarboDur® S carbon fibre reinforcement system to restore, strengthen and extend the service life of existing concrete structures. This advanced Carbon Fibre Reinforced Polymer (CFRP) solution is engineered to increase the structural capacity of reinforced concrete, masonry, timber and steel elements without the need for costly demolition or replacement.

Sika® CarboDur® S laminates are manufactured from high-strength carbon fibres, providing exceptional tensile strength while remaining lightweight and corrosion resistant. Using specially formulated structural epoxy adhesives, the laminates are permanently bonded to prepared concrete surfaces, allowing the existing structure to work as a reinforced composite system. This process restores structural integrity, improves load-bearing performance and provides a long-lasting strengthening solution with minimal disruption to surrounding operations.

Carbon fibre strengthening is commonly used where structures require additional load capacity, have deteriorated over time, have suffered structural damage, or need to meet updated engineering requirements. Compared to traditional strengthening methods, the Sika® CarboDur® S system offers a faster, cleaner and more cost-effective solution while preserving the existing structure.

Key Benefits

• High Strength, Lightweight Solution – Delivers exceptional structural performance without adding significant weight to the existing structure.

• Minimal Downtime & Disruption – Installation is fast and non-invasive, allowing projects to be completed efficiently while minimising disruption to surrounding operations.

• Corrosion Resistant – Carbon fibre materials will not corrode, providing long-term durability in demanding environments.

• Cost-Effective Alternative – Strengthens existing structures without the expense of demolition and reconstruction.

• Engineered Performance – Installed in accordance with engineered designs to ensure compliance, reliability and long-term structural performance.

• Extended Service Life – Restores structural capacity and helps maximise the lifespan of valuable infrastructure and commercial assets.

At REMTEC, our experienced technicians deliver precision installation of Sika® CarboDur® S systems in accordance with manufacturer specifications and engineering requirements, ensuring every project achieves the highest standards of safety, quality and long-term performance.

Concrete crack injection is a specialist remedial repair method used to restore the structural integrity and durability of cracked concrete elements without the need for demolition or replacement. At Remtec, we use engineered injection systems—typically high-performance epoxy or flexible polyurethane resins—to fill and seal cracks within concrete structures, effectively bonding the material back together or preventing further water ingress.

The process involves identifying and preparing the crack, sealing the surface, and then injecting the selected resin under controlled pressure to ensure deep penetration into the full depth of the crack. Epoxy injections are commonly used where structural strength needs to be restored, as they bond the concrete back together to form a high-strength repair. Polyurethane systems, on the other hand, are often used for active or water-bearing cracks, as they react with moisture and expand to create a flexible, watertight seal.

We carry out crack injection because it provides a cost-effective, minimally invasive, and long-lasting solution to concrete deterioration. Cracks in concrete can compromise structural performance, allow water ingress, accelerate corrosion of reinforcement, and lead to progressive damage if left untreated. By using specialist injection products, we are able to repair the issue at its source, extend the service life of the structure, and avoid the disruption and expense of full replacement.

At Remtec, crack injection forms a key part of our remedial concrete repair methodology, allowing us to reinstate both structural performance and durability while maintaining the existing asset wherever possible.

Epoxy truncations are a specialist remedial construction technique used to form or reinstate structural anchorage zones within existing reinforced or post-tensioned concrete elements. At Remtec, this process involves engineering a new anchorage or termination point using high-strength structural epoxy systems, designed to replicate or restore the performance of a traditional cast-in anchorage within a repaired or modified concrete section.

The process typically includes exposing and preparing the existing reinforcement or tendon system, followed by the installation of engineered reinforcement and the placement of high-performance epoxy grout or resin. Once cured, the epoxy matrix forms a dense, high-strength zone capable of safely transferring loads and anchoring forces into the surrounding concrete substrate. This allows structural continuity to be maintained even where original anchorage zones have been compromised, removed, or require modification.

We undertake epoxy truncations to provide a precise and controlled solution in situations where conventional demolition and recasting would be impractical, costly, or structurally disruptive. They are commonly used in structural alterations, strengthening works, and post-tensioning remediation where existing tendon systems need to be safely terminated or re-anchored.

At Remtec, epoxy truncations are carried out as part of engineered remedial solutions that restore structural capacity while maintaining the integrity of the existing structure. This approach allows us to achieve compliant, durable outcomes with minimal disruption to surrounding elements, making it an essential technique in modern concrete remediation and structural repair projects.

IteConcrete pull-off testing is a quality assurance and diagnostic method used to measure the tensile bond strength of surface-applied materials on concrete substrates. At Remtec, we use this testing to verify the effectiveness of repairs and coatings such as epoxy mortars, protective membranes, and concrete resurfacing systems, ensuring they are properly bonded and performing as designed.

The process involves bonding a small steel loading disc (dolly) to the prepared concrete surface using a high-strength adhesive. Once cured, a specialised pull-off tester applies a controlled tensile force perpendicular to the surface until failure occurs. The force required to detach the disc is measured and recorded, and the failure mode is assessed—whether it occurs within the concrete substrate, the repair material, or at the bond interface.

We carry out pull-off testing to confirm that surface preparation and application methods have achieved the required performance standards. It is a critical step in validating remedial works, as it provides objective, measurable data on adhesion strength rather than relying solely on visual inspection. This helps ensure compliance with project specifications, engineering requirements, and relevant standards.

At Remtec, concrete pull-off testing forms an essential part of our quality control process, giving engineers and clients confidence that repaired or coated concrete elements will perform reliably under service conditions and deliver long-term durability.

At Remtec, we provide comprehensive engineering services to support the assessment, design, and delivery of specialist concrete remedial works. Our engineering capability ensures that every repair, strengthening, or modification is properly assessed, detailed, and executed in accordance with structural requirements and relevant standards.

Our services include structural inspections, condition assessments, remedial design solutions, and technical support for complex repair methodologies such as carbon fibre strengthening, crack injection, epoxy truncations, and concrete restoration systems. We work closely with clients, builders, and consultants to develop practical, compliant solutions that address both the cause and the symptoms of concrete deterioration.

By integrating engineering services into our remediation process, we are able to provide a complete end-to-end solution—from initial diagnosis through to design verification and on-site implementation. This approach reduces risk, improves efficiency, and ensures that all works are tailored to the specific structural demands of each project.

At Remtec, our engineering services underpin everything we do, allowing us to deliver durable, cost-effective, and technically sound solutions for complex concrete repair and strengthening challenges.

Shear bolt anchors are a mechanical fastening system used to provide high-strength load transfer between structural elements and concrete substrates. At Remtec, we utilise shear bolt anchoring systems as part of our remedial and strengthening works to safely connect steel or structural components to existing concrete where reliable shear resistance and structural continuity are required.

These anchors work by mechanically locking into pre-drilled holes within the concrete, expanding or engaging to create a secure interlock between the anchor and the surrounding substrate. Once installed and tightened to specification, shear bolt anchors are capable of transferring significant shear and tensile loads, making them suitable for structural connections, steel fixings, façade support systems, and retrofit strengthening applications.

We use shear bolt anchors because they provide a fast, reliable, and high-capacity solution for connecting new or existing structural elements without the need for extensive casting or chemical curing processes. They are particularly valuable in remedial environments where access is limited, construction timeframes are tight, or where existing concrete conditions require a controlled and predictable fixing method.

At Remtec, shear bolt anchors form part of our engineered fixing solutions, allowing us to deliver safe, compliant, and durable structural connections that integrate effectively with existing concrete infrastructure while maintaining long-term performance and stability.