Theoretical definitions of mixed behavior of PE panel and concrete should have preceded to cause a mixed behavior of concrete and polyethylene which have different elastic module, one-line expansion coefficients, poison ratios, compressive strengths and tensile strengths. Consequently, changes are analyzed through experiment process to identify the effects on interpretation of mixed behavior on the basis of temperature change of structures, temperature rise of concrete other than PE panel due to hydration heat, temperature rise of concrete other than PE panel due to drying and contraction, working of hydrostatic pressure by storage and temperature gradient. From the results of interpretation of the analysis, it is concluded that PE panel have slight influences on the change of stress of structures and maintains stability with compared with concrete structures without PE panel.