Publications Internationales
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Item Utilization of Hydrophilic/Hydrophobic hyperbranched poly(amidoamine)s as additives for melamine urea formaldehyde adhesives(Wiley, 2015) Amirou, Siham; Zhang, Jizhi; Essawy, H. A.; Pizzi, A.; Zerizer, A.; Li, J.; Delmotte, L.Item Use of wood waste (Aleppo pine) as a superplasticiser in self-compacting mortars(2014) Daoui, Abdelhakim; Safi, Brahim; Rezak, M.; Zerizer, A.Item Influence de l'angle d'inclinaison des cannelures sur le comportement à l'usure des cylindres broyeurs de blé(European Journal of Scientific Research, 2008) Aknouche, Hamid; Zerizer, A.; Chemani, B.Le suivi du comportement des équipements de l’industrie alimentaire, lors de leur exploitation est l’une des préoccupations majeures pour le maintien de la meilleure qualité des produits céréaliers. a perte des performances des mécanismes des machines alimentaires est due dans la plupart des cas à une dégradation importante causée par l’usure. Ce travail a pour finalité de répondre à des préoccupations liées à l’exploitation optimale des broyeurs à cylindres dans les entreprises algériennes de transformation des céréales. Les constructeurs de ces machines utilisent des caractéristiques de cannelures (les angles des cannelures) influençant leur blé local, ce qui déséquilibre leur exploitation dans les semouleries algériennes utilisant d’autres blés. Des relevés en milieu industriel ont été réalisés pour déterminer leurs durées de services. Une étude expérimentale faite sur un banc d’essai réalisé dans notre laboratoire, nous a permis de comparer le comportement à l’usure des cannelures de différentes pentesItem Characterization of algerians oak wood by x-Ray tomographic scanner and free software image-J(Statny Drevarsky Vyskumny Ustav, 2014) Zerizer, A.; Sitouah, N.; Aknouche, A.; Mothe, F.; Kennouche, S.Item Tool wear effect on cutting forces : in routing process of aleppo pine wood(2009) Aknouche, Hamid; Outahyon, A.; Nouveau, C.; Marchal, R.; Zerizer, A.; Butaud, J.C.This paper uses the cutting forces in a routing process of Aleppo pine wood to estimate the tool wear effect. The aim is to obtain further information about the tool wear effect by monitoring the variation in the cutting forces. A Kistler 9257A 3 axes Dynamometer was positioned under the workpiece to measure the cutting forces at frequencies up to 10,000 Hz. The experiments were carried out on a CNC routing machine RECORD1 of SCM. A carbide tool was used and the cutting parameters were fixed. The cutting speed was approximately 25 m/s. Dasylab software was used to capture the data. The results show a correlation between the tool wear and the computed angle ( ), between the tangential and cutting forces. In fact, the variation of ( ) is unstable in the running period and stable in the linear wear zone, included in the interval [−1.11◦; −1.10◦]. This study was performed as part of a development program for the Algerian wood industry, hence the selection Aleppo pine wood as the working materialItem Thermal behaviour of five different date palm residues of algeria by thermogravimetric analysis(PRO LIGNO, 2013) Amirou, Siham; Haddadou, Imane; Zerizer, A.Renewable energy has become more important globally especially with the current fuel and economic crisis. Date palm biomasses are highly potential materials for energy resources. The fact that they are renewable and abundantly available are amongst the attractive reasons of employing them as the major source for renewable energy. The purpose of this research was to investigate the thermal behavior of date palm biomass in order to evaluate their usefulness for energy production. In microparticular scale, the thermogravimetric analysis (TGA) is one of the techniques used to determine the thermal properties of five different date palm residues that were studied: (date palm rachis (DPR), date palm trunk (DPT), leaf base (Petiole) (LB), fruitstalk prunings (FP) and liff (LP)). The TGA technique consists to record the lost weight during the increase in temperature from 20°C until 600°C with a 10°C/min heating rate. The thermograms presented a departure phase of free water (from room temperature to 110°C) before the degradation process of the lignocellulosic constituents. The lignin and hemicellulose play an important role on the degradation of lignocellulosic materials at the temperature under 250°C. The degradation of cellulose begins at 250°C and overlaps to that of lignin until 450°CItem Resistance to crack propagation of Algerian wood(2011) Kennouche, S.; Zerizer, A.; Aknouche, A.; Daoui, AbdelhakimWood is the most building materials widely used since prehistory for the construction of houses, tools, weapons. Accidents occurring during the use of materials caused by different defaults, as: knots, resin pockets, cracks. These various defaults and others are the starting point of the principle of crack mechanics. Our present work focuses on determining the resistance to crack propagation of three types of Algerians wood, (Aleppo pine, eucalyptus and oak), by calculating the energy release rate G (mode I). The estimation of factor G allows the possibility of fracture propagationItem Particleboards production from date palm biomass(Springer Berlin Heidelberg, 2013) Amirou, Siham; Zerizer, A.; Pizzi, A.; Haddadou, Imane; Zhou, X.Date palm biomass is a renewable natural resource that has not widely been utilized in industry. The objective of this study was to examine some chemical properties of date palm trunk and rachis (holocellulose, cellulose, lignin and extractives) and to evaluate their suitability to produce composite panels. Particleboards were produced using trunk and rachis as an alternative raw material for forest products industry in the presence of two types of polycondensation resins (phenol–formaldehyde and melamine urea–formaldehyde) which were selected as binding agents. The panels were tested for their physical (water absorption and thickness swelling) and mechanical (modulus of rupture, modulus of elasticity and internal bond strength) properties. The internal bond strength of date palm trunk and date palm rachis based boards met the requirements of the general purpose product standards (EN 312) at 0.70 g/cm3 density. The panels made with phenol–formaldehyde resin showed better performance with respect to the panels made with melamine urea–formaldehyde. In addition, the particleboard made with date palm trunk particles had better quality compared to the particleboard made from date palm rachis particles. Based on preliminary results of this work, raw materials from date palm trunks and rachis can have a promising potential in the manufacture of particleboards and as a substitute for wood in board productionItem Modeling rot in wood by replacement of wood with sand : an experimental study(2006) Zerizer, A.; Ouis, D.Rot is known to affect the strength properties of wood. At the same time, the damping properties of the attacked material have also been shown to change. This article presents the results of an experimental study in which rot in wood was modeled by the replacement of wood with sand. The procedure entailed the drilling of holes in the body of a wooden beam, filling the holes with sand, and monitoring the changes induced by the sand-filled holes on the values of the modulus of elasticity (MOE) and of the loss factor. The MOE was calculated from the resonance frequency of the first longitudinal mode of vibration, and the loss factor was obtained indirectly from the impulse response by means of a room acoustical technique. The results show that the MOE value, and hence the strength characteristic of the wood specimen, decreases at the same time as the loss factor increasesItem Liaisons entre efforts de coupe, densité et états de surface de quelques composites à base de bois(2012) Zerizer, A.; Martin, P.Divers échantillons de composites à base de bois ont été étudiés du point de vue de leur comportement à l'usinage, de la qualité des surfaces produites et de leurs caractéristiques densitométriques. On a mis en évidence, l'influence de la densité et des conditions de coupe à travers Em (épaisseur moyenne du copeau) de ces panneaux sur les puissances et efforts de coupe, mais aussi la liaison de ces efforts avec la variation de la rugosité de surface de chants usinés, représentée par l'écart moyen Ra qui tient compte de la moyenne arithmétique des rugosités détectées le long d'un profil mesuré