Study of the Thermomechanical Performances of Bio-Sourced Materials: Influence of the Proportion of Sugar Cane Fiber and the Cement Content

In a context of global warming and scarcity of natural resources, this study analyzes the impact of the proportion of sugarcane fibers and the binder (cement) content on the thermal and mechanical performances of bio based adobes.The experiments conducted include fiber proportions ranging from 2.5% to 10% and cement contents of 5% and 10%. The properties measured nclude thermal conductivity,effusivity,heat capacity and mechanical strength.The results indicate that the addition of 2.5% fibers and 10% cement optimizes thermal conductivity (0.4 W/m.K) and effusivity(705.065 J/m.K.s1/2)while maintaining sufficient mechanical strength (0.59 MPa in bending and 1.15 MPa in compression at 28 days),making these materials suitable for lightweight green constructions. This research contributes to the development of sustainable building materials,offering a viable alternative to conventional materials,particularly in regions where resource management and thermal comfort are crucial.