Chaouki Sadik - Academia.edu (original) (raw)

Papers by Chaouki Sadik

Research paper thumbnail of Effects of Lizardite Addition on Technological Properties of Forsterite-Monticellite Rich White Ceramics Prepared From Natural Magnesite and Dolomite

Lizardite rich peridotite has never been used to prepare ceramic specimens, especially in Morocco... more Lizardite rich peridotite has never been used to prepare ceramic specimens, especially in Morocco. For this raison, potential use of naturally abundant lazirditic material from the Rif domain (NW morocco), as a supply for ceramic industry, has been evaluated. The effects of lizardite addition to magnesite and dolomite mixtures on the thermomechanical properties of the calcined ceramics were also detailed. To achieve this target, natural lizardite, magnesite and dolomite samples were collected in ultrabasic Beni Bousra massif. Those raw samples were used for the synthesis of a forsterite-monticellite rich ceramics. Both raw and sintered samples were characterized by x-ray diffraction (XRD), scanning electron microscope (SEM) and fourier transform infrared (FTIR). Main physical and mechanical properties were assessed and correlated to their respective microstructural changes. The obtained results showed that both magnesite and dolomite were mainly composed of MgCO3 and CaCO3. In contr...

Research paper thumbnail of Effects of Lizardite addition on technological properties of forsterite-monticellite rich ceramics prepared from natural magnesite and dolomite

Journal of Construction Research

Lizardite rich peridotite has never been used to prepare ceramic specimens, especially in Morocco... more Lizardite rich peridotite has never been used to prepare ceramic specimens, especially in Morocco. For this raison, potential use of naturally abundant lazirditic material from the Rif domain, as a supply for ceramic industry, has been evaluated. The effects of lizardite addition to magnesite and dolomite mixtures on the thermomechanical properties of the calcined ceramics were also detailed. To achieve this target, natural lizardite, magnesite and dolomite samples were collected in ultrabasic Beni Bousra massif. Those raw samples were used for the synthesis of a forsterite-monticellite rich ceramics. Both raw and sintered samples were characterized by x-ray diffraction, scanning electron microscope and fourier transform infrared. The obtained results showed that both magnesite and dolomite were mainly composed of MgCO3 and CaCO3. In contrast, lizardite sample showed high amounts of SiO2, MgO and Fe2O3. An increased amount of lizardite in the initial mixtures enhanced mechanical and...

Research paper thumbnail of Potentiality of new dark clay-rich materials for porous ceramic applications in Ouled Sidi Ali Ben Youssef Area (Coastal Meseta, Morocco)

Boletín de la Sociedad Española de Cerámica y Vidrio

Research paper thumbnail of Valorization of coffee waste with Moroccan clay to produce a porous red ceramics (class BIII)

Boletín de la Sociedad Española de Cerámica y Vidrio

Research paper thumbnail of Preparation and characterization of possible basic ceramics from Moroccan magnesite

Journal of the Australian Ceramic Society

Research paper thumbnail of Elaboration of a high mechanical performance refractory from halloysite and recycled alumina

Boletín de la Sociedad Española de Cerámica y Vidrio

b o l e t í n d e l a s o c i e d a d e s p a ñ o l a d e c e r á m i c a y v i d r i o x x x (2 ... more b o l e t í n d e l a s o c i e d a d e s p a ñ o l a d e c e r á m i c a y v i d r i o x x x (2 0 1 9) xxx-xxx (P) = 21.75%; densidad (d) = 1.94 g/cm 3 ; contracción térmica (R) = 2.7% y resistencia a la flexión (Rf) = 29.05 MPa. La adición a la mezcla (M6) del 25% de la alúmina reciclada «Rec-Al», obtenida a partir de residuos de ladrillos refractarios sillico-aluminosos, ha fortalecido sustancialmente el rendimiento mecánico del producto refractario «M6» (Rf = 45.08 MPa).

Research paper thumbnail of Effect of slaked lime on the geopolymers synthesis of natural pozzolan from Moroccan Middle Atlas

Journal of the Australian Ceramic Society

Research paper thumbnail of Complete characterization of Berrechid clays (Morocco) and manufacturing of new ceramic using minimal amounts of feldspars: Economic implication

Case Studies in Construction Materials

Research paper thumbnail of Review on the elaboration and characterization of ceramics refractories based on magnesite and dolomite

Journal of Asian Ceramic Societies, 2016

One of the most important elements of furnaces, boilers and other heating units is the structure ... more One of the most important elements of furnaces, boilers and other heating units is the structure (lining), usually made of silica-alumina, basic or special refractories. The basic refractories are materials that are increasingly in demand and whose manufacturing involves necessarily the use of MgO and CaO. In this article, the description and characterization of magnesite (MgCO 3) and dolomite (Mg,Ca(CO 3) 2) and their contribution in industrial ceramics-refractories have been reviewed.

Research paper thumbnail of Silica-Alumina Refractory Synthesis based on Moroccan Granitic Geo-Materials

Andalusite rich schist until now has not been utilized to produce refractory. In this work, refra... more Andalusite rich schist until now has not been utilized to produce refractory. In this work, refractory materials were elaborated from alumina-silica geomaterials related to granitoids and their direct surrounding rocks (kaolin clay and andalusite riche schist). Characterization evolution on heating was investigated in a composition (80% kaolinitic clay, 20% andalusite rich schist). The evolution of mullite was examined by SEM (scanning electron microscopy) and XRD (X-ray diffraction). The thermal shock test showed that the refractory sample has a good thermal shock resistance.

Research paper thumbnail of Effect of andalusite rich schist grain size and the addition of metallic aluminum powder on the properties of silica–alumina refractory

Journal of Asian Ceramic Societies, Dec 1, 2013

Refractory materials were elaborated from silica-alumina geomaterials related to granitoids and t... more Refractory materials were elaborated from silica-alumina geomaterials related to granitoids and their direct surrounding rocks (kaolin clay and andalusite rich schist). The use of andalusite rich schist as aggregates (mean grain size: 1000-2000 m) could improve the mechanical properties of synthesized refractory. The flexural strength increased from 39.10 to 54.16 MPa. The pyroscopic temperature increased from 1400 to 1450 • C. Thermal conductivity of the porous brick produced in this study (1.11 W/m K) showed 39% of reduction compared to initial brick of the same composition (1.83 W/m K). The thermal shock tests showed that the refractory samples have a good thermal shock resistance.

Research paper thumbnail of Composition and Refractory Properties of Mixtures of Moroccan Silica-Alumina Geomaterials and Alumina

New Journal of Glass and Ceramics, 2013

Five mixtures (M1 to M5) of silica-alumina geomaterials and two varieties of alumina (A P and A R... more Five mixtures (M1 to M5) of silica-alumina geomaterials and two varieties of alumina (A P and A R) were used for the elaboration of mullite refractory materials between 1500˚C and 1600˚C. An X-ray diffraction (XRD) analysis showed that the refractory samples are composed of mullite, corundum and silica. The length of the mullite crystals was measured by a method of image analysis of scanning electron microscopy (SEM). Chemical and mechanical properties of these materials were investigated and correlated with their microstructure. Resistance towards Acid Attack test showed that the refractory samples present good resistance, as well as, the alumina powder A R obtained from waste of silica-alumina bricks proves to be efficient for an eventual use.

Research paper thumbnail of Effects of Lizardite Addition on Technological Properties of Forsterite-Monticellite Rich White Ceramics Prepared From Natural Magnesite and Dolomite

Lizardite rich peridotite has never been used to prepare ceramic specimens, especially in Morocco... more Lizardite rich peridotite has never been used to prepare ceramic specimens, especially in Morocco. For this raison, potential use of naturally abundant lazirditic material from the Rif domain (NW morocco), as a supply for ceramic industry, has been evaluated. The effects of lizardite addition to magnesite and dolomite mixtures on the thermomechanical properties of the calcined ceramics were also detailed. To achieve this target, natural lizardite, magnesite and dolomite samples were collected in ultrabasic Beni Bousra massif. Those raw samples were used for the synthesis of a forsterite-monticellite rich ceramics. Both raw and sintered samples were characterized by x-ray diffraction (XRD), scanning electron microscope (SEM) and fourier transform infrared (FTIR). Main physical and mechanical properties were assessed and correlated to their respective microstructural changes. The obtained results showed that both magnesite and dolomite were mainly composed of MgCO3 and CaCO3. In contr...

Research paper thumbnail of Effects of Lizardite addition on technological properties of forsterite-monticellite rich ceramics prepared from natural magnesite and dolomite

Journal of Construction Research

Lizardite rich peridotite has never been used to prepare ceramic specimens, especially in Morocco... more Lizardite rich peridotite has never been used to prepare ceramic specimens, especially in Morocco. For this raison, potential use of naturally abundant lazirditic material from the Rif domain, as a supply for ceramic industry, has been evaluated. The effects of lizardite addition to magnesite and dolomite mixtures on the thermomechanical properties of the calcined ceramics were also detailed. To achieve this target, natural lizardite, magnesite and dolomite samples were collected in ultrabasic Beni Bousra massif. Those raw samples were used for the synthesis of a forsterite-monticellite rich ceramics. Both raw and sintered samples were characterized by x-ray diffraction, scanning electron microscope and fourier transform infrared. The obtained results showed that both magnesite and dolomite were mainly composed of MgCO3 and CaCO3. In contrast, lizardite sample showed high amounts of SiO2, MgO and Fe2O3. An increased amount of lizardite in the initial mixtures enhanced mechanical and...

Research paper thumbnail of Potentiality of new dark clay-rich materials for porous ceramic applications in Ouled Sidi Ali Ben Youssef Area (Coastal Meseta, Morocco)

Boletín de la Sociedad Española de Cerámica y Vidrio

Research paper thumbnail of Valorization of coffee waste with Moroccan clay to produce a porous red ceramics (class BIII)

Boletín de la Sociedad Española de Cerámica y Vidrio

Research paper thumbnail of Preparation and characterization of possible basic ceramics from Moroccan magnesite

Journal of the Australian Ceramic Society

Research paper thumbnail of Elaboration of a high mechanical performance refractory from halloysite and recycled alumina

Boletín de la Sociedad Española de Cerámica y Vidrio

b o l e t í n d e l a s o c i e d a d e s p a ñ o l a d e c e r á m i c a y v i d r i o x x x (2 ... more b o l e t í n d e l a s o c i e d a d e s p a ñ o l a d e c e r á m i c a y v i d r i o x x x (2 0 1 9) xxx-xxx (P) = 21.75%; densidad (d) = 1.94 g/cm 3 ; contracción térmica (R) = 2.7% y resistencia a la flexión (Rf) = 29.05 MPa. La adición a la mezcla (M6) del 25% de la alúmina reciclada «Rec-Al», obtenida a partir de residuos de ladrillos refractarios sillico-aluminosos, ha fortalecido sustancialmente el rendimiento mecánico del producto refractario «M6» (Rf = 45.08 MPa).

Research paper thumbnail of Effect of slaked lime on the geopolymers synthesis of natural pozzolan from Moroccan Middle Atlas

Journal of the Australian Ceramic Society

Research paper thumbnail of Complete characterization of Berrechid clays (Morocco) and manufacturing of new ceramic using minimal amounts of feldspars: Economic implication

Case Studies in Construction Materials

Research paper thumbnail of Review on the elaboration and characterization of ceramics refractories based on magnesite and dolomite

Journal of Asian Ceramic Societies, 2016

One of the most important elements of furnaces, boilers and other heating units is the structure ... more One of the most important elements of furnaces, boilers and other heating units is the structure (lining), usually made of silica-alumina, basic or special refractories. The basic refractories are materials that are increasingly in demand and whose manufacturing involves necessarily the use of MgO and CaO. In this article, the description and characterization of magnesite (MgCO 3) and dolomite (Mg,Ca(CO 3) 2) and their contribution in industrial ceramics-refractories have been reviewed.

Research paper thumbnail of Silica-Alumina Refractory Synthesis based on Moroccan Granitic Geo-Materials

Andalusite rich schist until now has not been utilized to produce refractory. In this work, refra... more Andalusite rich schist until now has not been utilized to produce refractory. In this work, refractory materials were elaborated from alumina-silica geomaterials related to granitoids and their direct surrounding rocks (kaolin clay and andalusite riche schist). Characterization evolution on heating was investigated in a composition (80% kaolinitic clay, 20% andalusite rich schist). The evolution of mullite was examined by SEM (scanning electron microscopy) and XRD (X-ray diffraction). The thermal shock test showed that the refractory sample has a good thermal shock resistance.

Research paper thumbnail of Effect of andalusite rich schist grain size and the addition of metallic aluminum powder on the properties of silica–alumina refractory

Journal of Asian Ceramic Societies, Dec 1, 2013

Refractory materials were elaborated from silica-alumina geomaterials related to granitoids and t... more Refractory materials were elaborated from silica-alumina geomaterials related to granitoids and their direct surrounding rocks (kaolin clay and andalusite rich schist). The use of andalusite rich schist as aggregates (mean grain size: 1000-2000 m) could improve the mechanical properties of synthesized refractory. The flexural strength increased from 39.10 to 54.16 MPa. The pyroscopic temperature increased from 1400 to 1450 • C. Thermal conductivity of the porous brick produced in this study (1.11 W/m K) showed 39% of reduction compared to initial brick of the same composition (1.83 W/m K). The thermal shock tests showed that the refractory samples have a good thermal shock resistance.

Research paper thumbnail of Composition and Refractory Properties of Mixtures of Moroccan Silica-Alumina Geomaterials and Alumina

New Journal of Glass and Ceramics, 2013

Five mixtures (M1 to M5) of silica-alumina geomaterials and two varieties of alumina (A P and A R... more Five mixtures (M1 to M5) of silica-alumina geomaterials and two varieties of alumina (A P and A R) were used for the elaboration of mullite refractory materials between 1500˚C and 1600˚C. An X-ray diffraction (XRD) analysis showed that the refractory samples are composed of mullite, corundum and silica. The length of the mullite crystals was measured by a method of image analysis of scanning electron microscopy (SEM). Chemical and mechanical properties of these materials were investigated and correlated with their microstructure. Resistance towards Acid Attack test showed that the refractory samples present good resistance, as well as, the alumina powder A R obtained from waste of silica-alumina bricks proves to be efficient for an eventual use.