Elaboration et caractérisations d’un composite plâtre/fibre végétale

Abstract

Gypsum is considered the ideal material for use in homes. This is due to its rapid setting, light weight, fire resistance, recyclability and relatively low price. Its main weaknesses, however, are its brittleness, poor mechanical strength and sudden breakage. The addition of plant fibers to gypsum gives it very good mechanical strength, a high degree of toughness that eliminates catastrophic breakage, and above all, this incorporation does not affect its hygrothermal properties and supports its bio-degradability. The main objective of this study is to develop a gypsum matrix composite reinforced with sisal fibers. Consequently, to examine the impact of this incorporation on the behavior of the plaster. On the other hand, we will try to substitute this tropical fiber with one from a local plant, Diss (ampelodesmosmauritanicus). The aim is to add value to this fiber, which has never been used in this context. The results obtained are very encouraging.