Structural & Concrete Repair

Hill Technical Services delivers a complete spectrum of concrete and structural rehabilitation works — from epoxy and polyurethane crack injection to large-scale spall repair, FRP carbon fibre reinforcement, concrete jacketing and section enlargement, cathodic protection installation, anti-carbonation surface treatments, and reinforcement supplementation. We work alongside licensed structural engineers to ensure every intervention is engineered to specification and complies with UAE building codes. Our scope covers parking decks, facades, podium slabs, basements, retaining walls, marine and coastal structures.

Our assessment process combines visual inspection with non-destructive testing techniques such as half-cell potential mapping for corrosion activity, cover meter scanning for reinforcement location, hammer/sounding surveys for delamination, and core testing for compressive strength and chloride/carbonation depth. The findings inform a repair specification that targets the actual deterioration mechanism — whether it is chloride-induced corrosion, carbonation, alkali-silica reaction, or mechanical damage. A correct diagnosis is the most important factor in a durable repair.

FRP (Fibre Reinforced Polymer) systems are bonded to the surface of structural members to add tensile or shear capacity without changing element dimensions — ideal where headroom, weight, or aesthetic constraints rule out adding concrete. Concrete jacketing increases section size and works well for columns and beams that need significantly higher load capacity, ductility, or seismic upgrade. Cost, programme, and structural demand all factor in; our team works with the structural engineer to recommend the system that delivers performance within the project's constraints.

Cathodic protection (CP) electrically halts the corrosion of reinforcing steel in concrete — typically required for structures with chloride-contaminated concrete where conventional patch repair alone would lead to ongoing corrosion at the patch boundaries (the “incipient anode” or “halo” effect). We install both galvanic systems (sacrificial zinc anodes) for moderate-risk structures, and impressed current cathodic protection (ICCP) for severe cases such as marine structures and aged parking decks. CP extends service life by decades and is often the only economically viable repair for severely chloride-contaminated structures.

Programme depends entirely on scope. A targeted crack injection or localised patch repair on a small structure can be completed in days. A full parking deck rehabilitation involving spall repair, anti-carbonation coating, and traffic membrane installation typically takes 6 to 16 weeks depending on area. Major facade strengthening with FRP across a high-rise tower can run several months and requires phased access via swing stages or scaffolding. We provide a detailed programme during the tender stage and coordinate with property management to minimise disruption to occupants.