The potential of beeswax colloidal emulsion/films for hydrophobization of natural fibers prior to NTRM manufacturing

Abstract

Despite all the advantages of applying natural fibers in structural composites, their expected short life span constitutes a challenge due to their hydrophilicity and deterioration in alkaline lime or cement matrices. The present paper proposes eco-friendly hydrophobic coatings to protect natural fibers in lime mortars resorting to polymers reinforced with hydrophobic beeswax micro colloids. The physical, mechanical and chemical characterization suggest the potential of the coated fibers for NTRM casting and further investigation of their interface and bond behavior with the mortar.