The objective of this research is to provide a thermophysical characterization of a new ecological mortar. This material is characterized by the partial replacement of cement by recycled glass. Cement was partially substituted (20.40, 60% by weight) by glass powder with a water/cement ratio of 0.4. The glass powder and the samples were analyzed using a scanning electron microscope. Thermophysical properties, such as thermal conductivity and volumetric specific heat, were measured experimentally in the dry and wet (water-saturated) state. These properties were determined as a function of the percentage of glass powder using a CT-Meter at different temperatures from 20 ◦C to 50 ◦C in a temperature controlled box. The results show that the thermophysical parameters decreased linearly when 60% glass powder was added to the cement mortar The use of waste glass powder in place of cement affects the thermophysical properties of the cement mortar due to its porosity compared to the control mortar. The results indicate that thermal conductivity and volumetric specific heat increase with increasing temperature and/ or decreasing substitution rate. Therefore, the addition of waste glass powder can significantly affect the thermophysical properties of cement mortar.
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