High temperature behaviour of various natural building stones

The aim of this study is to investigate the effect high temperature and identify important changes that occur when selected building stones (six french limestones a sandstone) are laboratory-heated. Tests under such as thermogravimetric analysis, differential scanning calorimetry measurements but also thermal linear expansion tests were conducted in order establish thermo-chemical–mechanical behaviour these materials subjected temperature. Furthermore, exposed four different heating–cooling cycles (200, 400, 600, 800 °C). Then, mechanical performed determine evolution compressive strength, tensile strength dynamic elastic modulus.