2019 CSCE Annual Conference - Laval (Greater Montreal) Conference
Dr. Ahmed Soliman, Concordia University
Using phase change materials (PCMs) in cement mixtures has become an interesting area of research in the recent decade. PCMs have that abilities to enhance cement mixtures properties like thermal capacity and thermal resistance. In this study, microencapsulated PCMs were incorporated in mortar mixtures at a rate of 3%, 6%, and 12% as a replacement of sand at exposed to a standard heat curing profile. Fresh and mechanical properties including flow table, setting time, heat of hydration, compressive and tensile strengths, were evaluated for all mixtures. Moreover, representative samples from optimal mixtures were examined using differential scanning calorimetry (DSC), scanning electron microscope (SEM) and X-ray diffraction (XRD). Results indicated that the addition of PCMs will affect the development for different tested mixtures. The higher the added dosage, the great the effect.
Key Words: phase change materials, mortar, Compressive Strength