Mechanical and Hygrothermal Properties of Cement Mortars Including Both Phase Change Materials and Miscanthus Fibers

This work investigates the mechanical and hygrothermal properties of hybrid cement mortar including both microencapsulated phase change materials micronized miscanthus fibers. An experimental protocol was first developed for preparing mix, which allows to maintain same workability as that reference mortar, ensure homogeneous distribution two types inclusions within matrix. then characterized at age 28 days, in terms strength, thermophysical (determination thermal conductivity/diffusivity by Hot-Disk method), hygric (evaluation Moisture Buffer Value – MBV, according NordTest method). Overall, showed a significant decrease conductivity compared (−68%), suggesting it is good insulation material. Conversely, MBV only slightly improved remained much below filled with amount fibers but without Furthermore, large drop observed respect (−91%). Hence, interest solution questionable, presence seems hinder beneficial effect vegetal on hygroscopic behavior. In present case, introduction single best option improving performance moisture regulation capacity material scale.