Hygrothermal characterization of a new bio-based construction material: Concrete reinforced with date palm fibers

Nawal Chennouf (1, 2, 3) , Boudjemma Agoudjil (2) , Abderrahim Boudenne (1) , Karim Benzarti (4) , Fathi Bouras (3)

1 CERTES EA 3481 - Centre d'Etudes et Recherches en Thermique, Environnement et Systèmes [Créteil]
2 Université Hadj Lakhdar Batna 1
3 Université d'El-Oued
4 navier umr 8205 - Laboratoire Navier

Hygrothermal behavior of a new building material, composed of cement, sand and date palm fibers was investigated in the present work. In a first part, the sorption-desorption isotherms and the hysteresis effect were characterized under static conditions, and collected results revealed a high hydric capacity of this Date Palm Cement (DPC) mortar. In addition, the GAB model (Guggenheim-Anderson-de Boer) was successfully applied to describe the experimental sorption isotherm curve. In a second step, the moisture buffer value and the effect of temperature on successive adsorption/desorption cycles were assessed under dynamical conditions. It was found that the sorption process is highly affected by temperature. Finally, this bio-based mortar was classified as hygroscopic and breathable material with excellent moisture buffering capacity.

Mots clés: Date palm fibers; concrete; moisture buffer value; effect of temperature; adsorption desorption curve

Domaines: Matériaux composites et construction; Thermique [physics.class-ph]

Nawal Chennouf, Boudjemma Agoudjil, Abderrahim Boudenne, Karim Benzarti, Fathi Bouras. Hygrothermal characterization of a new bio-based construction material: Concrete reinforced with date palm fibers. Construction and Building Materials, 2018, 192, pp.348-356. ⟨10.1016/j.conbuildmat.2018.10.089⟩. ⟨hal-03088983⟩