Infrastructure & Transport Industry

Ensuring the safety, resilience and longevity of the Kingdom's vital transportation assets

Saudi Arabia is undergoing a historic transformation of its infrastructure. Under Vision 2030, massive investments are being made in roads, bridges, railways, airports, and public transport systems. These assets form the backbone of the nation's economy and social connectivity. They must remain safe, functional, and resilient against ever-increasing traffic loads, harsh environmental conditions, and the test of time.

At Arabian Company for Protection and Strengthening, we bring specialized engineering and contracting expertise to the infrastructure sector. We help government agencies, developers, and contractors extend the service life of bridges, tunnels, roads, and transport facilities. Our solutions address the unique challenges of infrastructure: continuous operation, minimal disruption requirements, and the need for long-term durability.

Why Infrastructure Requires Specialized Protection

Transportation assets face a unique set of degradation mechanisms that demand proactive intervention.

Increasing traffic loads: Heavier vehicles and higher traffic volumes exceed original design capacities.
Corrosion of reinforcement: De-icing salts (in tunnels and bridges), marine environments, and carbonation.
Concrete deterioration: Spalling, cracking, and delamination from freeze-thaw (in elevated areas) and thermal cycling.
Water ingress: Through expansion joints, cracks, and failed waterproofing membranes.
Seismic vulnerability: Many older structures were not designed to current seismic codes.
Fatigue: From repeated loading on bridges and rail structures.
Scour: Erosion around bridge foundations and piers.

Our Services for the Infrastructure & Transport Sector

We deliver comprehensive solutions tailored to the specific needs of infrastructure owners and operators.

Post-Tensioning Systems

Post-tensioning is the technology of choice for modern bridge construction and the strengthening of existing structures. It allows longer spans, thinner sections, and active crack control.

New construction

Design, supply, and installation of bonded and unbonded post-tensioning systems for bridges, segmental construction, and approach slabs.
Internal and external tendon configurations.
Multi-strand stressing and grouting operations by certified crews.

Strengthening existing bridges

External post-tensioning: Adding tendons outside the original concrete to increase load capacity or correct excessive deflections.
Carbon fiber (CFRP) post-tensioning: Lightweight, corrosion-proof strengthening for limited access areas.

Maintenance and repair

Inspection and condition assessment of existing post-tensioned structures.
Re-stressing of tendons where losses have occurred.
Grouting of voids in bonded systems.
Replacement of failed or corroded tendons.

Structural Strengthening

Many bridges and transport structures were designed for lower loads than they experience today. We upgrade their capacity using advanced, proven techniques.

CFRP (Carbon Fiber Reinforced Polymer) Strengthening

Bonded CFRP laminates and fabrics for flexural and shear strengthening of beams, slabs, and piers.
CFRP wrapping for column confinement and seismic retrofitting.
Near-surface mounted (NSM) CFRP bars for discreet reinforcement.

Steel Plate Bonding

Epoxy-bonded steel plates to increase flexural capacity of bridge girders.
Mechanically anchored steel for impact protection and heavy load areas.

Section Enlargement

Adding reinforced concrete to existing beams, columns, or pier caps to increase cross-section and load capacity.

Concrete Repair & Restoration

Deteriorated concrete compromises structural integrity and accelerates reinforcement corrosion. We restore damaged infrastructure to like-new condition.

Spalling and delamination repair: Removal of unsound concrete, cleaning and coating of exposed rebar, and rebuilding with high-performance repair mortars.
Crack injection: Epoxy injection for structural cracks; polyurethane for water leaks through expansion joints and cracks.
Patch repair: Aesthetic and structural matching of original concrete profile and texture.
Pier and abutment repair: Restoration of substructure elements exposed to water and de-icing salts.

Waterproofing & Joint Sealing

Water is the primary enemy of bridge decks, parking structures, and tunnels. Effective waterproofing protects the underlying structure and prevents corrosion.

Bridge deck waterproofing

Spray-applied liquid membranes (polyurethane, PMMA) for seamless protection.
Sheet membranes (bituminous or synthetic) bonded to prepared decks.
Asphaltic plug joints and expansion joint sealing.

Tunnel waterproofing

PVC and HDPE sheet membranes for cut-and-cover tunnels.
Injection grouting for leaking segmental tunnel linings.
Internal drainage and water management systems.

Expansion joint repair and replacement

Modular and strip seal joint systems.
Nosings repair with high-strength, rapid-curing materials.
Asphaltic plug joint installation for smaller movements.

Cathodic Protection for Bridges & Marine Structures

For chloride-contaminated bridge decks, piers, and marine infrastructure, cathodic protection is the only proven technique to stop ongoing corrosion regardless of chloride levels.

Impressed Current Cathodic Protection (ICCP)

Mixed metal oxide (MMO) titanium anodes installed in slots or on concrete surfaces.
Permanent monitoring systems with remote access.
Ideal for large bridge decks, substructures, and marine piles.

Galvanic Cathodic Protection

Zinc or aluminum anodes for smaller areas, splash zones, and patch repairs.
Thermal-sprayed zinc anodes for complex geometries.
No external power required – low maintenance.

Soil Injection & Scour Protection

Bridge foundations are vulnerable to scour – the erosion of soil around piers and abutments by flowing water. We stabilize foundations and protect against further erosion.

Compaction grouting: Densifying loose soils around foundations.
Chemical grouting: Permeation grouting to strengthen and waterproof soils.
Resin injection: Expanding polyurethane resins to fill voids and lift settled structures.
Riprap and gabion installation: Armoring against scour.
Underwater grouting: For submerged foundation repairs.

Passive Fire Protection for Tunnels & Transit Hubs

Tunnels and enclosed transport infrastructure require specialized fire protection to ensure life safety and structural integrity in the event of a fire.

Tunnel lining fire protection: Spray-applied cementitious or fiber-reinforced materials to protect concrete from spalling under high heat.
Structural steel protection: Intumescent coatings for exposed steel in transit stations and airports.
Firestop systems: Sealing penetrations in fire-rated walls and floors within transport facilities.

Structural Health Monitoring

For critical infrastructure, continuous monitoring provides early warning of deterioration or distress. We install and maintain monitoring systems that track key parameters over time.

Strain gauges and displacement sensors.
Tilt meters and settlement monitoring.
Vibration monitoring for bridges under dynamic loads.
Corrosion monitoring probes.
Automated data acquisition and alert systems.

Non-Destructive Testing & Condition Assessment

Before designing any intervention, we conduct thorough investigations to determine the true condition of the asset.

Half-cell potential mapping for corrosion activity.
Cover meter surveys to locate reinforcement.
Ultrasonic pulse velocity (UPV) for concrete quality.
Impact-echo for void detection in grouted tendons.
Ground-penetrating radar (GPR) for deck and substructure evaluation.
Chloride and carbonation testing.
Load testing (proof and diagnostic).

Standards & Compliance

We adhere to the strict standards governing infrastructure projects in Saudi Arabia and internationally.

Saudi Building Code (SBC): SBC 301, SBC 303, SBC 304.
Ministry of Transport and Logistics standards.
MOMRA (Ministry of Municipal and Rural Affairs) guidelines.
ACI (American Concrete Institute): ACI 318, ACI 440, ACI 562.
AASHTO (American Association of State Highway and Transportation Officials).
PTI (Post-Tensioning Institute) specifications.
ISO 12944 for protective coatings.

Typical Infrastructure Assets We Serve

Highway and roadway bridges (concrete and steel).
Pedestrian bridges and overpasses.
Tunnels (road, rail, and utility).
Railway bridges and culverts.
Airport runways, taxiways, and aprons.
Metro and light rail systems (elevated and underground).
Parking structures and multi-story car parks.
Port and harbor infrastructure (quay walls, jetties).
Retaining walls and sound barriers.
Culverts and drainage structures.

Why Infrastructure Owners Choose Arabian Company

Specialized expertise: We focus on the unique needs of infrastructure – load upgrades, corrosion control, and minimal-disruption repairs.
Turnkey capability: From condition assessment and design through construction and long-term monitoring.
Minimal traffic disruption: We plan and execute work with phased closures, night work, and accelerated construction techniques.
Proven track record: Successful projects on major Saudi highways, bridges, and transport facilities.
Long-term partnership: We provide ongoing monitoring and maintenance programs to extend asset life.
Safety commitment: Rigorous traffic control and work zone safety protocols.

Case Study Highlight: Bridge Strengthening – Riyadh Ring Road

Client: Ministry of Transport and Logistics
Scope: Strengthening of a major interchange bridge to accommodate increased traffic loads.
Challenge: The bridge showed signs of distress under heavy truck traffic; complete replacement would have caused years of disruption.
Solution: External post-tensioning of main girders combined with CFRP wrapping of columns for shear strengthening. Work was phased to maintain partial traffic flow.
Outcome: Bridge load capacity increased to current design standards. All work completed within 8 months with zero lane closures during peak hours. Post-strengthening load tests confirmed performance.

Case Study Highlight: Tunnel Rehabilitation – Makkah

Client: Makkah Municipality
Scope: Comprehensive rehabilitation of a major road tunnel experiencing water leakage and concrete spalling.
Challenge: The tunnel remained operational 24/7 with high traffic volume; any intervention had to minimize disruption.
Solution: Polyurethane injection to stop active leaks; epoxy injection of structural cracks; application of cementitious fire protection lining to prevent spalling in case of fire; installation of permanent drainage system.
Outcome: Tunnel now watertight and structurally sound, with enhanced fire safety. Work completed during low-traffic night shifts over 6 months.

Contact Our Infrastructure & Transport Team

To discuss how Arabian Company can support the integrity and longevity of your infrastructure assets, please contact our dedicated Infrastructure & Transport sector team.

Arabian Company for Protection and Strengthening
Email: infrastructure@arabiancompany.sa
Phone: +966 13 800 8822
24/7 Emergency Response for Critical Infrastructure: +966 50 987 6543

Offices in Riyadh, Jeddah, Dammam, and Makkah – positioned to serve the Kingdom's transportation networks.

— Strengthening the connections that unite the Kingdom —

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