Rebar for Harbour & Port Structures
High-durability marine reinforcement — B500B bar, mesh, lattice girders and couplers to DIN 488 / EN 10080, designed to Eurocode 2 for aggressive exposure classes.
Why Marine Structures Set the Highest Bar for Reinforcement Quality
Harbour quay walls, jetty decks, dolphin structures, dry docks and port retaining walls operate in some of the most aggressive environments that reinforced concrete must endure. Eurocode 2 classifies the tidal and splash zone as exposure class XS3 — the highest corrosion exposure class for chloride-induced attack — and the submerged zone as XS2. These classifications directly drive minimum concrete cover, w/c ratio limits and bar spacing requirements.
The reinforcement itself must be dimensionally accurate and free from surface defects that would reduce cover effectiveness. B500B to DIN 488 / EN 10080 provides the strength, ductility and weldability that marine port structures require, while a traceable EN 10204 3.1 Mill Test Certificate enables the project QA system to verify every heat of steel against the design specification.
Structural Elements and Product Requirements
Harbour and port construction encompasses a range of structural elements, each with distinct reinforcement needs:
- Quay wall copings and piles — heavily reinforced sections, typically Ø20–32 mm main bars with closely spaced Ø10–16 mm links to resist combined bending and shear under vessel berthing loads
- Jetty decks and pile caps — large pile cap footprints with dense Ø16–25 mm bar grids; mesh used for deck slabs (B500A welded mesh, Q/R type to DIN 488-4)
- Sheet pile capping beams — continuous beams integrating anchor tendons and rebar cages, Ø16–25 mm longitudinal bars
- Breakwater cores and crown walls — mass concrete with nominal reinforcement; mesh layers in crown wall slabs
- Dry dock walls and floors — highly loaded retaining walls with Ø20–32 mm vertical bars and Ø12–16 mm horizontal reinforcement at close centres
Key Diameters for Marine Construction
| Diameter (mm) | Weight (kg/m) | Section (mm²) | Typical marine application |
|---|---|---|---|
| 10 | 0.617 | 78.5 | Distribution bars, mesh secondary direction |
| 12 | 0.888 | 113 | Links in piles, deck slab reinforcement |
| 16 | 1.58 | 201 | Deck slab main bars, quay wall horizontal bars |
| 20 | 2.47 | 314 | Pile cap main bars, capping beam longitudinal bars |
| 25 | 3.85 | 491 | Primary quay wall and dolphin reinforcement |
| 32 | 6.31 | 804 | Heavily loaded pile caps, dry dock walls |
Corrosion Mitigation: What the Steel Specification Covers
Standard B500B Carbon Steel
Suitable for XS1/XS2 zones (permanently submerged or airborne salt) when combined with adequate cover concrete (typically 50–60 mm in XS2 per EN 1992-1-1) and low w/c ratio mixes.
Epoxy-Coated or Stainless Options
For XS3 splash/tidal zones or thin-section elements, project engineers may specify epoxy-coated or stainless-clad rebar. Consult your structural engineer and contact us for available options.
Documentation for Marine QA
Mill Test Certificate EN 10204 3.1, Certificate of Origin and CE DoP — the full traceability chain required by marine project QA systems and international port authority specifications.
Certification details →Export Logistics for Port Construction Projects
Port construction projects are by definition adjacent to water — making seaborne delivery a natural fit for bulk rebar supply. We export to ports globally, with experience in supplying rebar for marine projects in Europe, the Middle East and Africa. Our logistics package includes:
- Seaworthy bundling in approximately 2-tonne lifts, suitable for crane discharge at quayside
- Container loading (typically 20-tonne per 20ft container) or break-bulk vessel for larger volumes
- Packing list with individual bundle weights, tag numbers and diameter breakdown for simple stockyard management on site
- Full customs documentation including Certificate of Origin and commercial invoice
Frequently Asked Questions
What exposure class applies to harbour structures under Eurocode 2?
Is B500B suitable for marine reinforced concrete in the tidal zone?
Can you supply to remote port locations or island projects?
What mesh types are suitable for jetty and quay deck slabs?
Do you supply rebar couplers for marine precast connections?
Source German-standard rebar with full export documentation
Tell us your harbour or port structure specification and destination port — we’ll respond with a detailed quotation.
