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Abstract
An evaluation has been made of the corrosiveness of selected wet residential building thermal insulation materials in contact with low carbon steel. Investigations were conducted both in wet insulations and in filtered leachates from insulations derived from thirteen cellulosic, three mineral fiber and four foam products. Potentiodynamic polarization measurements are reported from which the overall corrosion response was assessed and then the techniques of Tafel and polarization resistance analysis appled to estimate corrosion rates. Corrosion rates were also estimated electochemically using a direct reading instrument which performs the rate of calculation based on the polarization resistance principle. Direct determinations of corrosion rate were based on weight loss measurement.
An evaluation has been made of the corrosiveness of selected wet residential building thermal insulation materials in contact with low carbon steel. Investigations were conducted both in wet insulations and in filtered leachates from insulations derived from thirteen cellulosic, three mineral fiber and four foam products. Potentiodynamic polarization measurements are reported from which the overall corrosion response was assessed and then the techniques of Tafel and polarization resistance analysis appled to estimate corrosion rates. Corrosion rates were also estimated electochemically using a direct reading instrument which performs the rate of calculation based on the polarization resistance principle. Direct determinations of corrosion rate were based on weight loss measurement.
Date
10/1991
10/1991
Author(s)
E Stansbury
E Stansbury
Page(s)
Source
Oak Ridge National Lab
Oak Ridge National Lab
Keyword(s)
thermal insulation; corrosion; electrochemical
thermal insulation; corrosion; electrochemical