Publications Scientifiques

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Subject: search.filters.subject.Cement mortar

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    Physico-mechanical characterization of an ecological marble based- mortar
    (STEF92 Technology, 2023) Chahour, Kahina; Safi, Brahim
    Disposal of waste generated by the industries remains one of the major challenges to preserve the environment. Indeed, the use of industrial waste and by-products in construction is an important advantage to conserve natural resources. For this reason, several studies have focused on the use of marble waste in construction as recycled aggregate or fine powder. The work aim is to investigate the physical properties and mechanical behavior of eco-friendly mortar made with marble powder. The experimental study consists in studying the effect of cement substitution by marble powder (0%, 5% 10% and 20% wt.) on the fluidity and mechanical properties (Flexural strength, compressive strength and mechanical behavior) of elaborated mortars. The results show that it is possible to manufacture an ecological mortar having the good mechanical characteristics with marble powder and with local materials with the same basic components as a normal mortar and thus obtaining the same characteristics as those known internationally. The content amount of the marble powder as an addition to the cement is satisfactory to produce an ecological mortar with good resistance and better cement economy.
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    An experimental study on damaged cementitious mortars repaired by glass/epoxy composite materials
    (Sciendo, 2020) Aribi, Chouaib; Bouaissi, Aissa; Safi, Brahim; Saidi, Mohammed
    This paper presents an experimental investigation on the post-repair flexural response of mortars with and without damage. In order to improve the mechanical properties of the damaged mortars, which were subjected to different loads ranging between 40 % and 90 %, the mortars specimens were reinforced and repaired using two different composite materials, the first with only epoxy resin, while the second consisted of a mixture of epoxy resin and glass fiber. The results show a significant improvement in the stiffness damaged. Therefore, the reinforced specimens by a layer of resin on the lower side surface increased the bending strength by 58 %, when compared to those control samples. The reinforcement using composite resin-fiber of glass exhibited considerable increases in the safety of constructions. The SEM images of damaged samples with and without repair, revealed the impact of reinforced glass fibers-mortar on the matrix-mortar by improving theirs mechanical performances
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    Granulated foam glass based on mineral wastes used for building materials
    (SAGE, 2017) Chahour, Kahina; Aboutaleb, Djamila; Safi, Brahim; Mazari, Tassadit; Zeghad, Mohamed
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    Improved behaviour of mortars at a high temperature by using refractory brick wastes
    (Indersciences Publishers, 2015) Saidi, Mohammed; Safi, Brahim; Bouali, Khaled; Samar, Madjid; Benmounah, Abdelbaki
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    Effectiveness of cement and plaster layers in protection of FRP confined concrete exposed to high temperatures
    (Taylor and Francis, 2015) Mostefa, Adda Hadj; Ghernouti, Youcef; Sebaibi, Yahia