Product category:
Waterproofing, Sealants and Adhesives
News Release from: Sika | Subject: Sika CarboDur
Edited by the Buildingtalk Editorial
Team on 11 April 2006
Bridge strengthened with Sika Carbon
Fibre Plates
Sika CarboDur carbon fibre strengthening system is currently being used at Highams Lane Bridge on the M3 near Windlesham, Surrey.
Sika CarboDur carbon fibre strengthening system is currently being used at Highams Lane Bridge, east of Junction 3 on the M3 near Windlesham, Surrey, as part of a scheme to increase the load capacity of the bridge deck in line with current code requirements The £750,000, four month project involves reinforcing the soffit of the single span R/C deck with Sika Carbodur plates
This article was originally published on Buildingtalk on 8 Dec 2003 at 8.00am (UK)
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Sika CarboDur is part of a structural strengthening system comprising of pultruded carbon fibre plates and SikaDur 30, a specially formulated two-part epoxy adhesive.
Over 1,300 metres of CarboDur plate has been bonded to the bridge.
This has been overcoated with SikaGard 550W, an elastic water based protective coating.
SikaGard 550W has excellent crack bridging and anti-carbonation properties, and is suitable for protecting any concrete structure that may be subject to cracking or cyclic movement.
Mott MacDonald, Area Managers for the Highways Agency, produced the design for the strengthening works.
They chose to use carbon fibre plates because of their durability, ease of application and light weight.
Interserve are the main contractors for the project.
Specialist contractors, Laser Special Projects, were sub-contracted to apply the Sika systems.
With a small workforce, Laser fitted the CarboDur plates quickly and efficiently, with no requirement for extra propping or fittings.
The light weight of the CarboDur plates was also a major advantage for access requirements to the working platform under the bridge.
By employing this system of using Sika CarboDur carbon fibre plates, the M3 was able to remain open throughout the strengthening, with no lane closures or speed restrictions.
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