Effect of service temperature on the shear creep response of rigid polyurethane foam used in composite sandwich floor panels

This paper presents an experimental and analytical study about the effect of temperature on the shear creep response of a rigid polyurethane (PUR) foam within the scope of sandwich panel application in building floors. Shear creep tests were carried out on a foam (87.4 kg/m3) subjected to shear stress levels of 11%, 22% and 44% of its shear strength at temperatures of 20 °C, 24 °C and 28 °C – a range likely to be found in the envisaged...