This research integrates a global program, which is interested in the improvement of the performances of building materials in hot dry climate zones by the beneficiation of the local natural resources. The local resource used in this research is the male date palm surface fibre (MDPSF). This paper provides mechanical and physical properties of MDPSF, and flexural properties of MDPSF reinforced concrete. Regarding the mechanical performance of more common vegetable fibres, the MDPSF has average mechanical properties and a weak elasticity modulus. The volume fraction and the length of fibres reinforcement were 2-3% and 15-60 mm respectively. The study revealed that increasing the length and percentage of fibre in reinforced concrete improves the post-crack flexural strength, but decreases the first crack The durability of MDPSF reinforced concrete was investigated according to its flexural properties and some scanning electron micrographs at the fibre-matrix interface zones. Three curing types were used: 1- In water, 2- In hot-dry climates, 3- Initially 14 days in water then in hot-dry climates. As a result, the durability of the SDPF reinforced concrete loosed in the second cure, but an improvement of its first crack strength is obtained with the third cure.
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