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http://dx.doi.org/10.5345/JKIBC.2018.18.5.455

Linear Regression Analysis of Tensile Performance for the Polyurethane Coating Waterproofing Material Periodically Exposed to Chemical Degradation  

Ju, Hee-Jeong (Graduate School, Tongmyong University)
Lim, Nam-Gi (Department of Architectural Engineering, Tongmyong University)
Publication Information
Journal of the Korea Institute of Building Construction / v.18, no.5, 2018 , pp. 455-461 More about this Journal
Abstract
The purpose of this study is to evaluate the tensile strength performance of the polyurethane coating material used as the waterproofing material in concrete structures. A linear regression equation is proposed to establish a correlation on the tensile strength of polyurethane coating membrane against periodic exposure to chemical degradation. The polyurethane film membrane showed a minimum strength of 23% to a maximum of 38% when subjected to chemical degradation. The elongation rate showed a relation with the tensile strength deterioration rate of at least 15% to 22% at maximum, and the proposed regression equation could be used to predict the degree of performance change of the polyurethane coating membrane under chemical degradation condition.
Keywords
polyurethane; chemical degradation; tensile performance;
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