In North-Western Germany, there is a town called Wuppertal. There lives the oldest electric elevated railway with hanging cars in the world known as the Wuppertal Suspension Railway.
Unfortunately, corrosion damage to the structural steel bridge girders were identified at the central station. This article explains how these were repaired quickly and efficiently using Weicon Plastic Metal HB300 Epoxy Steel.
First, Preparation and Cleaning.
The corroded and warped steel sheets were disassembled and the corrosion on the girder was removed through sanding.
Next, the bonding surfaces were thoroughly cleaned with Weicon Cleaner S. This cleaning is always an important step before the application of any Plastic Metal.
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| Railway Bridge Girder Repair Site Preparation in Wuppertal |
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| Site Inspection and Works Beginnging on Repairs |
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| Fast Pipe Repairs with Plastic Metal SF Steel Filled Epoxy |
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| Buckled Structural Supports Before Repair |
Application of Weicon HB 300.
HB300 Plastic Metal is an epoxy resin characterised by its’ excellent wear resistance and high tensile strength.
To repair these steel components, this epoxy resin system was applied to new steel sheets generously in a V-shape.
The sheets were then mounted and secured. This process forced excess HB 300 to flow (it was done before it began to cure) and automatically fill any surrounding gaps with epoxy.
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| Weicon Plastic Metal HB 300 Being Applied to Replacement Girder. |
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| Excess Plastic Metal Being Spread Spread to Ensure Coverage and Seal. |
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| Replacement Steel Girders Bonded and Sealed with Plastic Metal HB300. |
Results.
Thanks to the use of HB 300, a complete force closure is achieved. This way, moisture penetration and thus, further corrosion, is prevented. HB 300 is wear-resistant and perfect for bridging gaps.
Plastic Metal HB 300 Key Feature Summary.
| Type | Steel Filled Epoxy Resin | |
| Mix Ratio | 1 to 1 | |
| Nature | Pasty, Can Be Applied to Vertical Surfaces. |
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| Temperature Resistance |
High. Withstands up to 200°C (280°C Short-Term) |
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