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Home >> Spray Foam Insulation
DURATHERM® OS Spray foam system
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| The Client: |
GWESPA ( Alfred McAlpine / Network Rail Western Territory
Framework Arrangement for the Maintenance & Renewal of
Earthworks & Structures )
Designer - Tony Gee & Partners. Sub-contractor - Cosy Home
Site - Howard Street, Shrewsbury. Project - Bridge Infill: Infilling of
approximately 30 redundant structures ( where there is no longer a
right of way or need for the structure ) to reduce maintenance liability. |
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| The Problem: |
Redundant structures ( eg; the railway that ran below was removed
some time ago ) that support roads / footpaths / car parks. Cannot
demolish as the roads provide access or structure is in use as car
parking. These structures require regular inspection & maintenance
unless they can be infilled from below. But how to ensure the brick
arches that give the intrinsic strength, and other voids, are fully filled? |
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| The Solution: |
DurathermŽ spray applied high strength foam is applied to the brick
jack arches. The first 2-3 metres of the space are filled in with 6N fill,
allowing the spray contractor in to a convenient sized space to apply
the foam where needed. Then the remaining void in the middle is
filled with expanding concrete. |
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| The Outcome: |
- All works can be carried out from below with no disruption to roads, footpaths or car parks
- No need to demolish the bridge
- No requirement for future inspection or maintenance
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