Study of the Freeze–Thaw Weathering’s Influence on Thermal Properties of Stone Artifacts

A study of the weathering process three types stones, sandstone, marble, and granite, which are commonly found in artifacts worldwide, is presented. Freeze–thaw cycles used to accelerate changes stone’s physical properties, such as surface morphology, mass, porosity. Pulsed infrared thermography, an situ non-destructive testing method, adopted measure thermal diffusivity, effusivity, conductivity. These parameters influence natural process, turn can change with decay stone materials. Preliminary experimental results show that all experience a mass loss porosity increase after freeze–thaw cycles, their properties differently depending on types. Since effusivity be obtained non-destructively by reflectance we propose for first time use characterize indicator aging degree artifacts.