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Saturday, 21 September 2019
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Raw materials & technologies, Applications, Protective & Marine coatings

Looking at thermal protection of structural steel

Friday, 6 September 2013

Overview discusses three strategies for thermal protection of structural steel: a reactive constant volume coating, a sacrificial variable volume coating, and a reactive variable volume coating.

There are several strategies for thermal protection of structural steel

Source: Karelin Dmitri - Fotolia.com

There are several strategies for thermal protection of structural steel

Source: Karelin Dmitri - Fotolia.com

Typically in furnace test conditions and real fire environments steel is exposed to both radiative and convective heating. This means that thermal protection strategies based on surface properties alone will be ineffective. There are two obvious strategies to minimise heat transfer to the steel: to minimise the thermal conduction coefficient (the ratio of thermal conductivity to coating thickness) or to maximise the heat sink potential.

At the European Coatings Conference "Protective Coatings” on 12 and 13 September, 2013 in Düsseldorf, Germany, Dr John E.J. Staggs, University of Leeds, will give an overview of three strategies for thermal protection: a reactive constant volume coating (heat sink), a sacrificial variable volume coating (ablative) and a reactive variable volume coating (intumescent). Important parameters for each class of coating are identified and discussed in relation to fire test and other experimental data.

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