eng Science and Education Publishing Journal of Materials Physics and Chemistry 2333-4444 2022-07-17 10 1 27 35 10.12691/jmpc-10-1-5 JMPC20221015 article Ange Christine DJOHORE drdjohore@gmail.com 1 Conand Honore KOUAKOU 2 Koffi Clement KOUADIO 2 Aka Alexandre ASSANDE 2 Edjikeme EMERUWA 2 Laboratoire de Politique ¨¦nerg¨¦tique et Environnemental, Institut de Recherche sur les Energies Nouvelle, NANGUI ABROGOUA University, 02 BP 801 Abidjan 02, C?te d¡¯Ivoire Laboratoire des Sciences du Sol, de l¡¯Eau et des G¨¦omat¨¦riaux, F¨¦lix HOUPHOU?T BOIGNY University, 22 BP 582 Abidjan 22, C?te d¡¯Ivoire In recent years, the trend in the construction industry has been to gradually replace conventional materials by composite materials. In the same vein, this study suggests the addition of fibers in a mineral matrix in order to change the brittle behavior of a material in ductile behavior. It can be said, from the stress-strain curves of mortars in bending and compression tests made during this study that mortar strength increases with the fiber content up to 0.8%. The strength decreases beyond this rate. Likewise, the flexural strength of mortars containing treated fibers with potassium solution increases as the pH of the solution increases. But mortars containing treated fibers with high pH solutions (> 10) break faster than those containing treated fibers with lower pH solutions. Compared to mortars without fibers, the properties of mortars containing fibers treated with banana tree solution are excellent. http://pubs.sciepub.com/jmpc/10/1/5/jmpc-10-1-5.pdf vegetable fibers rice straw mortar kapok wood ash banana tree juice elastic modulus ductile distortion