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STRUCTURAL CRACK REPAIRS IN CONCRETE

STRUCTURAL CRACK REPAIRS IN CONCRETE Regardless of the care taken in placement concrete can often crack.  The reasons can be attributed to poor reinforcement design, premature loading or simple shrinkage cracking that has occurred during the concrete curing phase. MC Building Chemicals are world leading experts in structural crack repair and have solutions for both dry and water-bearing cracks. …

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WHAT IS A BRIDGE DECK?

A bridge deck is a superstructure between two abutment walls that is often supported by central piers where the span extends a significant distance. Bridge decks can be supported by a traditional brick or stone barrel arch construction or pre-tensioned precast concrete units. Traditional construction techniques involve waterproofing of the decks by spray applied liquid membranes such as Stirling Lloyd…

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Under Protective Concrete Coatings

Under Protective Concrete Coatings: Scunthorpe Sewage Holding Tank A 1980s concrete structure within Severn Trent’s network was suffering some degradation above the waterline due to H₂S gas attack resulting in some degradation to the host concrete. The repair solution involved ultra high pressure water jetting to all surfaces followed by grit blasting the host concrete back to a sound alkaline…

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Under Protective Concrete Coatings

Under Protective Concrete Coatings Section A flood water outfall culvert in Great Harwood, Lancashire, was being slightly contaminated with benzene, coal tar and other light and heavy fuels.  Initially, it was considered a bit of a mystery until historic records showed a disused gas works site was above one location with historic ground contamination being the only possible cause. The…

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Under Protective Concrete Coatings

Under Protective Concrete Coatings Section Anglian Water/ Lowestoft Wet Well A wet well located to the sea front in Lowestoft was suffering from water ingress and H₂S gas degradation. This was causing problems downstream with the sea water making its way to the local Anglian Water treatment plant. The repair involved cleaning of all substrates followed by leak sealing injection…

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