A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Smoke corrosivity used to be associated only with acid, mainly halogenated, gas emission. It was shown recently that all smoke is corrosive, even if it is not acid. Acid gas emission from burning materials does not correlate with smoke corrosive potential. Moreover, halogen free smoke can be more corrosive to metal surfaces than halogenated smoke. Corrosion effects are reduced by applying treatments soon after a fire. Many factors govern corrosion, e.g. smoke amount and composition, humidity and temperature. Smoke composition is a function of how the material is combusted. In particular as the fire air fuel ratio decreases, combustion is less complete and smoke corrosivity increases greatly. Thus, tests for regulation based on the corrosive potential of smoke need to address many parameters, and a set of 10 criteria have been developed for such tests. The effect of temperature on corrosion means that good fire properties (mainly low heat release) are essential to contain fire atmosphere corrosiveness, by keeping fires cooler and decreasing their propagation rate. The best way to manage smoke corrosivity is to avoid fires.
Smoke corrosivity used to be associated only with acid, mainly halogenated, gas emission. It was shown recently that all smoke is corrosive, even if it is not acid. Acid gas emission from burning materials does not correlate with smoke corrosive potential. Moreover, halogen free smoke can be more corrosive to metal surfaces than halogenated smoke. Corrosion effects are reduced by applying treatments soon after a fire. Many factors govern corrosion, e.g. smoke amount and composition, humidity and temperature. Smoke composition is a function of how the material is combusted. In particular as the fire air fuel ratio decreases, combustion is less complete and smoke corrosivity increases greatly. Thus, tests for regulation based on the corrosive potential of smoke need to address many parameters, and a set of 10 criteria have been developed for such tests. The effect of temperature on corrosion means that good fire properties (mainly low heat release) are essential to contain fire atmosphere corrosiveness, by keeping fires cooler and decreasing their propagation rate. The best way to manage smoke corrosivity is to avoid fires.
Update on smoke corrosivity
Unterlagen zum Problem der Korrosion auf Grund von Rand-/Feuerentwicklung
Hirschler, M.M. (author)
1990
12 Seiten, 13 Bilder, 6 Tabellen, 23 Quellen
Conference paper
English
Corrosivity Test of Smoke from C1-contained Materials
| British Library Conference Proceedings | 1992
Testing for corrosivity of smoke in materials and products
| British Library Conference Proceedings | 1992
Testing for corrosivity of smoke in materials and products
| British Library Conference Proceedings | 1992
Analysis of Test Results from a Variety of Smoke Corrosivity Test Methods
| British Library Conference Proceedings | 1993