FIRST COMPLIANT PLANT IN BANGLADESH OPERATIONS ACTIVE Banasree, Rampura | Khilgaon Plant, Dhaka Sat – Thu: 9:00 AM – 6:00 PM
+880 1711 933307 +880 151 111 3399 [email protected]
Home Engineering Services

Comprehensive Civil & Structural Engineering Capabilities

From national megaproject bridge erection to high-capacity post-tensioning and certified expansion joint fabrication, we deliver turn-key infrastructure engineering solutions across Bangladesh.

DIVISION 01

Bridge Expansion Joint Manufacturing & Installation

First compliance & ISO certified manufacturing plant in Bangladesh. Producing single strip seal, finger, modular, elastomeric, and railway bridge joints.

We engineer, fabricate, and install state-of-the-art expansion joints capable of accommodating longitudinal, transverse, and vertical structural movements from 10mm up to 1200mm in bridges, expressways, and viaducts.

  • Armored Strip Seal & Finger Expansion Joints (10mm – 400mm Movement)
  • Multi-Gap Modular Joints with Sinus Plates (Noise Reduction up to 80%)
  • Continuous Watertight Elastomeric Rubber Mats for Slender Decks
  • Ballast Mat Railway Bridge Expansion Joints Tested to International Standards
Bridge Expansion Joint Manufacturing & Installation
Bridge Repair, Strengthening & Maintenance
DIVISION 02

Bridge Repair, Strengthening & Maintenance

Specialist in bridge structural health inspection, defect recognition, bridge strengthening, and complete refurbishment as main contractor.

Structural bearings and expansion joints are vital components. KIAN Infratech Limited provides unparalleled expertise in structural monitoring, defect diagnosis, bridge repairs, and strengthening for highway and rail networks.

  • Complete Refurbishment Operations as Principal Main Contractor
  • Structural Health Auditing, Defect Recognition & Monitoring Systems
  • Carbon Fiber (CFRP) Composite Strengthening & Epoxy Crack Grouting
  • Extensive Track Record in Highway Viaducts and Dedicated Rail Bridges
DIVISION 03

Bridge Bearings Supply & Jacking Replacement

Full range replacement bearings designed to BS 5400 and manufactured under ISO 9001. Complete 'one stop' bridge bearing replacement service.

KIAN offers a full range of replacement bearings (mechanical, spherical, pot, elastomeric, lifting and guide) combined with specialized synchronized multipoint hydraulic jacking systems and specialty grouts.

  • Spherical, Pot, Elastomeric Laminated, Lifting & Guide Bearings to BS 5400
  • One-Stop Bearing Replacement Service under Live Highway/Rail Traffic
  • Computer-Controlled Synchronized Multipoint Hydraulic Jacking Consoles
  • Modified Designs for Seamless Field Operation and Fast Turnaround
Bridge Bearings Supply & Jacking Replacement
Pre & Post-Tensioning Engineering & Execution
DIVISION 04

Pre & Post-Tensioning Engineering & Execution

Comprehensive post-tensioning systems for cast-in-situ overpasses, incremental launching, balanced cantilevers, and precast segmental bridges.

The KIAN Infratech post-tensioning system is engineered for all structural typologies including standard cast-in-situ flyovers, segmental viaducts, balanced cantilever long spans, and precast arches.

  • Incremental Launching & Balanced Cantilever Heavy Post-Tensioning
  • Precast Segmental Viaduct & Cast-in-Situ Girder Stressing Execution
  • High-Tensile 12.7mm & 15.2mm PC Strands (ASTM A416), Anchor Heads, Wedges
  • Thixotropic Cable Grout Injection with Computerized Elongation Verification
DIVISION 05

Highway Safety Infrastructure & Metal Fabrication

Fabrication of W-Beam corrugated steel crash barriers, overhead road signboard structures, pedestrian handrails, and bridge drainage MS clamps.

Specialized metal engineering components manufactured for road safety and bridge durability, including crash-tested W-Beam highway guardrails, retro-reflective signboards conforming to ASTM D4956, and heavy-duty bridge drainage clamps.

  • Corrugated W-Beam Longitudinal Semi-Rigid Highway Crash Barriers
  • Gantry & Overhead Truss Road Signboards with ASTM D4956 Retro-Reflective Sheeting
  • Bridge Deck Pedestrian Safety Handrails, Parapets & Guardrails
  • Galvanized Structural MS Clamps for Bridge PVC Sewerage & Runoff Lines
Highway Safety Infrastructure & Metal Fabrication
Engineered Construction Chemicals & Polymer Mortars
DIVISION 06

Engineered Construction Chemicals & Polymer Mortars

Ultra-high strength non-shrink cementitious grouts, thixotropic cable grouts, elastomeric sealants, and concrete-to-steel epoxy bonding primers.

High-grade structural construction chemicals engineered for heavy dynamic vibration, high humidity, and coastal saline exposure in tropical bridge environments.

  • Ultra-High Strength Non-Shrink Bedding Grouts (Compressive > 80 MPa)
  • Two-Component Polysulfide & Polyurethane Expansion Joint Sealants
  • Zero-Bleeding Thixotropic Cable Duct Grouts for Post-Tensioning
  • Low-Viscosity Epoxy Pressure Injection for Structural Crack Sealing
RIGOROUS EXECUTION

5-Step Turn-Key Project Delivery Lifecycle

From finite-element design analysis to on-site deck jacking, our end-to-end process guarantees zero site failure.

01

Structural Analysis & Movement Criteria

Evaluating bridge thermal expansions, braking thrusts, seismic rotations, and skew angles to calculate precise stroke limits.

02

Custom CAD & Component Modeling

Creating comprehensive shop drawings, anchor rebar layouts, and recess pocket dimensions for structural engineer approval.

03

Precision Plant Fabrication

Automated CNC steel beam milling, anti-corrosion blasting, multi-layer painting, and continuous chloroprene rubber vulcanization.

04

Hydrostatic QA & Movement Testing

Every joint is factory tested under hydrostatic water heads to guarantee 100% watertightness under heavy live deck deflections.

05

Site Jacking & Final Installation

Deployment of our specialized installation crew, synchronized hydraulic jacks, rapid-setting concrete grouting, and joint commissioning.

CONTRACTOR ADVISORY

Frequently Asked Technical Inquiries

Critical parameters and compliance considerations for EPC project directors and bridge consultants.

Importing bridge joints from Europe or East Asia typically entails 16 to 24 weeks of shipping, customs clearance, and potential transit damage. KIAN's Khilgaon manufacturing plant cuts lead times to as few as 2 to 4 weeks, with rapid replacement parts readily stocked in Dhaka, minimizing project delays and demurrage penalties.
Our products are engineered and tested in strict accordance with AASHTO M297 (Elastomeric Joint Seals), ASTM D5973 (Elastomeric Strip Seals), BS 5400 (Steel, Concrete and Composite Bridges), and IRC 82. Independent laboratory metallurgical and tensile test certificates from BUET and regional test labs are provided with every batch.
Yes. Our engineering division designs multi-cell modular joints ranging from 80mm up to 1,200mm+ total movement. These systems incorporate welded steel transverse support bars, urethane control springs, and equalizing mechanisms to distribute longitudinal movement evenly across all cells.
Yes. We provide computer-controlled multi-cylinder hydraulic jacking stations capable of lifting several thousand metric tons simultaneously with millimeter synchronization. This permits safe, live-traffic bearing inspection, refurbishment, and replacement without closing critical highway or rail corridors.