AMAR Guettouche

KHELIFI Amdjed, abd elmoumun , BENCHORA, Djamel

Comportement des briques de terre utilisées dans la construction en terre dans la zone de Boussaâda sous chargements monotone et cyclique

SAADAOUI benaceur , OUAHAB Yamina

Caractérisation des briques de terre utilisées dans les anciennes constructions dans la zone de Bou-Saâda

This article presents a study on earth bricks (adobe) used in ancient earth constructions in the region of Boussaâda, located in the southeast of northern Algeria. The objective is to evaluate the physical and mechanical properties, including compressive and shear strength, as well as the thermal characteristics of these bricks, with the aim of promoting their use on a large scale. The results of the physical and identification analyses showed that the bricks studied are silty sands. The compression tests gave an average compressive strength of 0.2 MPa. The shear tests gave an average cohesion of 172.22 kPa and an average internal friction angle of 63.92°. The average thermal conductivity is 0.7291 W/m.K. The results obtained show that Boussaâda earth bricks have satisfactory physical and mechanical characteristics. The compressive strength is low, but it is sufficient for the construction of one or two storey buildings. Cohesion and internal friction angle are satisfactory for the stability of brick walls. The thermal conductivity is low, which makes Boussaâda earth bricks good thermal insulators. The results obtained reveal that the composition of these adobes can be used to make quality bricks.

Citation

Amar Guettouche , , (2024-02-12), Characterization Study of the Earth Bricks Used in the Old Constructions of the Boussaâda Area, Annales de Chimie - Science des Matériaux, Vol:48, Issue:3, pages:323-329, IIETA

Solid waste management is one of the world's major environmental concerns. Cement Kiln Dust (CKD) is a by-product of cement manufacturing. It is a fine-grained, solid and highly alkaline particulate material. Environmental concerns related to Portland cement production, CO2 emissions and CKD disposal are becoming increasingly important. Replacing some of the cement with CKDs will significantly reduce the amount of clinker to be produced, which will then reduce CO2 emissions into the atmosphere and transform the CKDs into useful products while allowing sustainable concrete/mortar to be produced in an environmentally friendly way. This work is part of the recovery of machining waste from the manufacture of cements produced from a local Algerian cement plant, in particular CKD. Study of the use of CKD influence in mortar and concrete reveals that the percentage increase in CKD accelerates setting time. From the obtained results (simple compression and bending tension) we can conclude that the use of CKD in mortar can be favorable for substitution and/or addition up to 10%.

Citation

Amar Guettouche , , (2023-03-13), Valorization of Cement Kiln Dust (CKD) from the Ain-Al-Kebira Cement Plant (Algeria) in Building Materials, Annales de Chimie - Science des Matériaux, Vol:47, Issue:2, pages:57-66, IIETA

Unlike other traditional materials; cement, concrete, wood and steel, earth in its natural state can be used in construction without much energy expenditure. It also has many environmental, social, cultural and economic advantages. It also has good thermal insulation performance once stabilized under ideal conditions. This work, which focuses on the study of earth bricks used in the old earthen constructions of the Boussaâda area in the south-east of northern Algeria, aims to assess the physical and mechanical characteristics in compression and shear as well as the thermal characteristics of these bricks, with a view to popularizing their use on a large scale. The synthesis of the results of the physical and identification characteristics shows that the adobes taken are Loamy Sand (SL), according to the LPC classification. All bricks were tested for compression as well as box shear. The results obtained give a compressive strength of 0.2 MPa. However, the cohesion and internal friction angle (C, Ф) are 172.22kPa and 63.92° respectively. The average value of thermal conductivity is 0.7291 W/m.K, which corresponds to the right thermal insulator. The results obtained reveal that the composition of these adobes can be used for the manufacture of quality bricks. Keywords: Soil; Adobe; Boussaâda; Compression; Shear; Thermal insulation.

Citation

Amar Guettouche , Naoui TALLAH , ,(2022-12-13), Characterization study of earthen bricks used in the old buildings of the city of Boussaâda,MatScience-2022,khenchela, Algérie.

Shrinking-swelling soil are a serious problem for infrastructure in many parts of Algeria. Therefore, the primary objective of this research is to produce the shrink-ing-swelling soil Hazard Map for Berhoum area (Algeria) so that appropriate shrinking-swelling soil disaster risk reduction strategies can be developed. In this research, Geographic Information System based Multi-Criteria Decision Analysis method — Weighted Sum Method (WSM) — were applied to scientifi-cally assess the shrinking-swelling soil Hazard areas in Berhoum. The methodol-ogy is to create thematic maps by combining in GIS, determining factors (soil types, depth of ground water table, rain) in triggering phenomenon, using the method of Weighted Sum Model (WSM). These maps are then combined to pro-vide a hazard map of shrinking-swelling soil. The application of this method allows the spatial distribution of different criteria and phenomena in Berhoum area (eastern Algeria). As a result, the study area has been divided into three different areas: (1) areas with no shrinking-swelling soil hazard, (2) areas with low to medium shrinking-swelling soil hazard, and (3) are-as with high shrinking-swelling soil hazard.

Citation

Amar Guettouche , ,(2020-11-02), Shrinking-Swelling soil Hazard mapping using multi-criteria evaluation techniques in Berhoum Area, Algeria.,3rd Conference of the Arabain Journal of Geosciences,Sousse, Tunis

Résumé. La gestion des déchets solides est l'une des principales préoccupations environnementales dans le monde. La poussière de four à ciment (CKD) est un sous-produit de la fabrication du ciment. C’est un matériau particulaire à grains fins, solide et hautement alcalin. Les préoccupations environnementales liées à la production de ciment Portland aux émissions de CO2 et à l'élimination du CKD deviennent de plus en plus importantes. Le remplacement d’une partie du ciment par des CKD réduira de façon significative la quantité de clinker à produire qui diminuera, par la suite, l’émission de CO2 dans l’atmosphère et transformera les CKD en produits utiles tout en permettant de fabriquer des bétons/mortier durables en respectant l’environnement. Le présent travail s’inscrit dans le cadre de la valorisation des déchets d’usinage provenant de la fabrication des ciments notamment la poussière de four à ciment CKD. L’étude de l’influence de l’utilisation des CKD dans le mortier, révèle que l’augmentation en pourcentage des CKD accélère le temps de prise. A partir des résultats obtenus (compression simple et traction par flexion) nous pouvons conclure que l’utilisation des CKD dans le mortier peut être favorable pour une substitution et/ou addition jusqu’à 10 %. Mots clé : CKD ; Ciment ; Substitution ; Valorisation ; Temps de prise ; Mortiers.

Citation

Amar Guettouche , ,(2019-11-26), Valorisation des déchets de four à ciment (CKD) de la cimenterie de Ain-Al-Kebira (Algérie) dans le Mortier.,JETMC'19,Sétif - Algerie

This study dealt with the followed methodology and the obtained results of a geotechnical valorization test for the Berhoum zone geological map (ex-Souk Ouled Nedjaa) in order to prepare a geotechnical map for construction using a geographical information system (GIS). The basic document was the existing geological map. The geological units have been characterized from a geotechnical view point. From the existing data, each geological unit was as much as possible represented by a number of average physical and geomechanical parameters. The homogeneity of the response made it possible to highlight the geotechnical units and establish a geotechnical classification of the different terrains. The geotechnical map for construction was the ultimate result of this study.

Citation

Amar Guettouche , ,(2019-10-10), Geotechnical valorization of the Berhoum area (Algeria) geological map for preparing a geotechnical map for construction,2nd Euro-Mediterranean Conference for Environmental Integration,Sousse, Tunis

Modeling land movements hazard by multi-criteria approach is a line of research to provide a methodological framework for risk mapping. This work is intended to establish a model for mapping “land movements hazard” by GIS approach based on multi-criteria analysis. The methodology is to create thematic maps by combining in GIS, determining factors (slope, lithology, water, …) in triggering landslides phenomena and shrinking-swelling soil, using the method of Weighted Sum Model (WSM). These maps are then combined to provide a hazard map of land movements. The application of this method allows the spatial distribution of different criteria and phenomena in Berhoum area, region of Hodna Basin, eastern Algeria. As a result, the study area has been divided into four different areas: 1) areas with no land movements hazard, 2) areas with a medium land movements hazard, 3) areas with a high land movements hazard, and 4) areas with very high land movements hazard.

Citation

Amar Guettouche , , (2019-04-16), Using a GIS to Assess the Land Movements Hazard: Application on Berhoum Area, Hodna Basin, Algeria, Journal of Geographic Information System, Vol:11, Issue:2, pages:166-184, Scientific Research Publishing

The subject of this study is setting in the preservation of the environment. It focuses on the study of the pollution of soil and water resources by infiltration. The controlled landfill is a geotechnical process considered a waste disposal method. For these active and passive water barriers, the permeability of which is less than 10-9 m/s, the landfill is limited disorders that can cause water circulation, and completely block its waters. This study aims to identify and evaluate the degree of toxicity of a pollutant (sludge pressing) on the ground, to arrive at a sound management by adequate technical and economically sustainable. In order to achieve an optimum blend, ensuring a good performance in terms of the hydraulic conductivity, mixtures of sand with different concentrations of bentonite, to the compact state, are prepared and studied. This study showed that a low permeability of mixture (sand/bentonite) can be obtained with the introduction of 8% of bentonite. Therefore, it represents an optimum blend for sealing systems, because of its economic and ecological advantages. Comparison of laboratory results, after treatment and analysis, to norms in vigor’s will determine that, for a coefficient of permeability of the order of 10-10 m/s, the contaminant infiltrates into the soil and water becomes polluted. It is not recommended to throw it kind of pollutant in controlled landfill; but it is best to think of appropriate collections of operations and treatment in specialized factories.

Citation

Amar Guettouche , ,(2016-09-21), Study of the effectiveness of waterproof barriers against the risk of infiltration of sludge pressings in landfills,Advances in Civil Engineering (ACE 2016),Istanbul, Türkiye.

The concept of load-carrying capacity of the soil can be evaluated by two main components: permissible stress and permissible depth; and therefore, running it begins its assessment that allows an outline of exploitation. Nevertheless, the assessment of the load-carrying capacity made the object of several works of research and many models, based on the multi-criteria analysis, have been established. This work examines the contribution of GIS approach to assessment load-carrying capacity of the soil. This one has been finished in two practicums: 1) Assessment of the capacity of soil by a multi-criteria approach, using the Weighted Sum Model (WSM); 2) It brought to use the GIS approach to evaluate and spatialize degree of soil bearing stresses resulting from the buildings, as well as load distribution. The method has been applied to the Berhoum area of Hodna Basin, in eastern Algeria, where each is characterized by its various natural properties and density of equipment. Final results are better in the classification of the degree of load-carrying capacity possible in each site. This results in allowing exploiters to program their optimal designs for the rational management of the area.

Citation

Amar Guettouche , , (2013-10-23), Using a GIS to Assessment the Load-Carrying Capacity of Soil Case of Berhoum Area, Hodna Basin, (Eastern Algeria), Journal of Geographic Information System, Vol:5, Issue:5, pages:492-497, Scientific Research Publishing