Structural Repairs & Retrofitting

Scientific repair solutions that extend the life of ageing concrete structures, safely and sustainably.

Our Approach

Engineered Repair, Not Cosmetic Patching

Our engineered repair solutions restore and enhance concrete structural performance. Taking a systematic, science-based approach, these systems address root causes of deterioration to provide long-term durability and structural integrity.

Rather than masking symptoms, our methodology addresses underlying deterioration mechanisms, providing durable solutions for issues ranging from load capacity enhancement to damage remediation with minimal disruption.

  • Comprehensive analysis and tailored solution design
  • Advanced composite materials for effective, non-invasive strengthening
  • Significantly extended service life for existing structures
  • Full technical support from assessment through implementation
Concrete flyover under rehabilitation with scaffolding around its piers

FRP Wrapping

Fibre Reinforced Polymer Fabrics

Our advanced Fibre Reinforced Polymer fabrics deliver high-strength, lightweight reinforcement for concrete structures. These engineered composite materials offer exceptional strength-to-weight ratios for diverse strengthening applications.

Utilising high-tensile carbon or glass fibres in specialised epoxy matrices, FRP wrapping creates powerful structural reinforcement with minimal dimensional impact. Ideal for retrofitting existing structures with minimal architectural changes.

Benefits

  • Ultra-high-performance reinforcement with minimal added weight
  • Versatile: confinement, shear, flexural, and seismic reinforcement
  • Complete corrosion immunity for long-term performance
  • Rapid installation with reduced facility downtime
Workers applying carbon fibre reinforced polymer wrap around a concrete column

Laminate Fixing

CFRP Laminates

Our engineered Carbon Fibre Reinforced Polymer laminates represent the pinnacle of concrete strengthening technology. These precision-manufactured pultruded strips deliver exceptional tensile reinforcement with minimal profile.

Manufactured through advanced pultrusion technology, the laminates feature perfectly aligned carbon filaments for maximum longitudinal strength, with tensile values approaching 3,000 MPa. Available in widths up to 150 mm and thicknesses up to 1.5 mm, they bond to structures using specialised structural epoxy adhesives.

Benefits

  • Extraordinary strength with minimal structural impact
  • Negligible weight addition to existing structures
  • Superior fatigue resistance in dynamic loading conditions
  • Cost-effective flexural strengthening of beams and slabs

Steel Jacketing

Steel Plate Reinforcement Systems

Our steel jacketing methodology provides efficient structural reinforcement with minimal dimensional impact, strategically positioning steel sections around structural elements to significantly enhance performance.

The system typically employs angle steel positioned around column or beam corners, secured with through-bolts or welding, and often filled with non-shrink grout to ensure composite action between the existing element and the steel reinforcement.

Benefits

  • Exceptional increase in load-bearing capacity
  • Superior confinement preventing concrete deterioration
  • Enhanced seismic resilience through improved ductility
  • Space-efficient compared with traditional concrete jacketing

Micro Concrete Jacketing

Free-Flowing Micro Concrete Encasement

Micro concrete jacketing strengthens existing structural elements through an additional encasement of free-flowing, high-strength micro concrete with properly detailed reinforcement, significantly enhancing load-bearing capacity and structural resilience.

The dual-shrinkage-compensated micro concrete flows into congested sections without vibration, increasing cross-sectional dimensions and reinforcement to enhance axial, flexural, and shear capacity.

Benefits

  • Dramatic increase in structural load-bearing capacity and stiffness
  • Enhanced continuity between structural elements
  • Improved protection against environmental deterioration
  • Particularly suitable for severely damaged or under-designed members

Expansion Joints

Joint Treatment Systems

Our specialised expansion joint solutions accommodate controlled movement in concrete structures. These engineered systems prevent the stress-induced cracking and structural damage that occurs when thermal movement is restrained.

Designed for diverse applications including pavements, bridges, buildings, and metro lines, these systems provide the necessary structural discontinuity while maintaining waterproofing and load transfer characteristics.

Benefits

  • Elimination of random cracking and associated structural damage
  • Controlled accommodation of thermal movement
  • Effective absorption of vibration and ground settlement
  • Waterproof options available for water-retaining structures

Injection Grouting

Cementitious · Epoxy · Polyurethane Grouts

Our precision injection grouting systems restore structural integrity by filling internal voids and cracks. Available in cementitious, epoxy, and polyurethane formulations, these specialised materials penetrate deep into concrete defects.

Engineered for applications from crack sealing to void filling and soil stabilisation, the grouts feature carefully controlled rheological properties, setting characteristics, and strength development profiles to suit diverse repair scenarios.

Benefits

  • Non-invasive repair of internal structural defects
  • Complete restoration of load paths and structural integrity
  • Effective sealing against water infiltration
  • Flexible or rigid formulations tailored to specific requirements
Injection ports fixed along a sealed crack in a concrete wall for grouting
Repair FAQs

Frequently Asked Questions

How do I know if my structure needs strengthening or repair?

Several indicators suggest the need for structural assessment:

  • Visible distress: significant cracking, spalling, excessive deflection, or exposed/corroded reinforcement.
  • Changed usage: increased loading demands, repurposing, or equipment exceeding original design capacities.
  • Age and exposure: structures in aggressive environments (coastal, industrial) or those exceeding 25-30 years.
  • Construction or design deficiencies compromising structural integrity.
  • Post-event assessment following fire, impact, or seismic activity.

Our structural engineers conduct comprehensive assessments using non-destructive testing, structural analysis, and material evaluation. Early detection typically allows more cost-effective remediation.

Which strengthening system is best: FRP, steel jacketing, or micro concrete jacketing?

FRP systems excel where minimal weight addition and space constraints are critical. Best for flexural strengthening of beams and slabs, confinement of columns, and seismic upgrades where space is limited.

Steel jacketing provides excellent confinement and shear reinforcement with minimal thickness increase. Particularly effective for columns requiring significant ductility enhancement.

Micro concrete jacketing delivers the most substantial increase in both strength and stiffness, with comprehensive reinforcement for all failure modes and excellent fire protection. Best for severely damaged elements requiring major capacity increases.

The optimal solution depends on access, space, load requirements, installation time, budget, and service environment. Often a combination of methods provides the most efficient solution.

What's the typical lifespan of your structural repair systems?

FRP systems typically provide 50+ years of service in normal interior environments and 25-40 years in exposed conditions depending on UV and mechanical protection. Steel jacketing, properly protected against corrosion, delivers 30-50 years of performance. Micro concrete jacketing typically matches or exceeds the original structure's designed service life, providing 50+ years when designed with appropriate quality and cover depth.

For critical structures, we incorporate durability enhancement measures and recommend periodic inspection protocols.

Concerned about an ageing structure?

Book a scientific structural assessment with our repair specialists.

Call +91 98450 82365 Request Assessment