Mechanical properties of date palm fibres and concrete reinforced with date palm fibres in hot-dry climate |
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| Affiliation: | 1. E.V.R.N.Z.A. Laboratory, University of Ouargla Algeria, BP 511, Ouargla 30000, Algeria;2. CRSTRA, BP 1682, RP Biskra, Algeria;3. URGC INSA of Lyon, 34 Av. des Arts 69621, Villeurbanne Cedex, France;4. Laboratoire L.C.E. Ecole Nationale Polytechnique, BP 182, El-Harrah 16200, Algérie;1. University of São Paulo, Brazil;2. CSIRO Forestry and Forest Products, Australia;1. Laboratoire de Mécanique Appliquée des Nouveaux Matériaux (LMANM), Université 8 Mai 1945, Guelma, Algeria;2. Université de M’sila, B.P 166 ICHBELIA, M′sila 28000, Algeria;3. Advanced Composites Centre for Innovation and Science (ACCIS), University of Bristol, BS8 1TR Bristol, UK;4. Bristol Centre for Nanoscience and Quantum Information (NSQI), University of Bristol, BS8 1FD Bristol, UK;5. Laboratoirede Mécanique de Lille, Université Lille1, CitéScientifique, Avenue Paul Langevin, 59655 Villeneuve d’AscqCedex, France;1. Univ. Ouargla, Fac. des Sciences Appliquées, Lab. Dynamique, Interaction et Réactivité des Systèmes, Ouargla 30000, Algeria;2. Laboratoire d’énergétique appliquée et pollution, Université de Constantine I, Algeria;3. Groupe de Recherche en Sciences pour l’Ingénieur, SFR Condorcet FR CNRS 3417, Université de Reims Champagne-Ardenne, France;1. Batna 1 University, LPEA Laboratory, 05000 Batna, Algeria;2. Université Paris Est Creteil (UPEC)/CERTES, 61 Av. du General de Gaulle, 94010 Créteil cedex, France;3. Université Paris-Est, Laboratoire Navier, UMR 8205, IFSTTAR, F-77447 Marne-la-Vallée cedex, France;1. Civil Engineering Research Laboratory, University of Biskra, 07000 Biskra, Algeria;2. Civil Engineering Department, University of Djelfa, 17000 Djelfa, Algeria;3. E.V.R.N.Z.A Laboratory, University of Ouargla, 30000 Ouargla, Algeria |
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| Abstract: | The study examines four types of date palm surface fibres and determines their mechanical and physical properties. In addition, the properties of date palm fibre-reinforced concrete, such as strength, continuity index, toughness and microstructure, are given as a function of curing in water and in a hot-dry climate. The volume fraction and the length of fibres reinforcement were 2–3% and 15–60 mm respectively. Increasing the length and percentage of fibre-reinforcement in both water and hot dry curing, was found to improve the post-crack flexural strength and the toughness coefficients, but decreased the first crack and compressive strengths. In hot-dry climate a decrease of first crack strength with ageing was observed for each concrete type. Water curing decreased the global degree of the voids and cracks with time for each concrete type, but increased it in hot-dry climate. |
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