SAAD Baali

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SAAD Baali

سعد بعلي

saad.baali@univ-msila.dz

0697011966

  • CIVIL ENGINEERING
  • Faculty of Technology
  • Grade PHd
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About Me

Education

Mastre en Matériaux en génie civil. in Université de M'sila

Domain

Science et Technologies

Research Domains

matériaux en génie civil Valorisation et recyclage les boues d'épuration Matériaux composite Matériaux de construction

Filiere

Génie Civil

Materials

Location

Msila, Msila

Msila, ALGERIA

Code RFIDE

  • 2025-07-15
  • 2025-07-15

    Effects of incinerated sewage sludge in porous concrete

    Porous concrete, also called drainage or permeable concrete, is a type of concrete that allows water to pass through its structure. Unlike conventional concrete, it is designed to be highly permeable due to a specific structure that contains a large number of interconnected voids. Incinerated sewage sludge is solid waste resulting from wastewater treatment, which undergoes an incineration process to reduce its volume and destroy the pathogenic contaminants it contains. Mainly originating from wastewater treatment plants, this sludge consists of organic matter and bacteria, and their incineration treatment not only disinfects them but also recovers energy in the form of heat. The incorporation of incinerated sewage sludge into porous concrete presents several beneficial effects on the mechanical and environmental properties of this material. By reusing the ashes from the incineration of sludge, the amount of waste sent to landfills is reduced while improving the durability of the concrete. The ashes can act as a partial substitute for aggregates or cement, thereby promoting the creation of pores that increase the permeability of the concrete, essential for storm water management. Moreover, the use of these materials derived from sewage sludge contributes to reducing the carbon footprint of concrete by decreasing the need for extracting new raw materials. However, it is crucial to control the chemical composition of the incinerated sludge to avoid introducing contaminants into the concrete, thereby ensuring that the final material remains compliant with safety and durability standards.

    Citation

    Saad BAALI , ,(2025-07-15), Effects of incinerated sewage sludge in porous concrete,3rd International Conference on Modern and Advanced Research ICMAR 2025,Konya, Turkey

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  • 2025-04-15
  • 2025-04-15

    Use of sewage sludge in Concrete pavers

    The sewage sludge is the residue resulting from the treatment of wastewater in treatment plants. Composed mainly of organic matter, microorganisms, and minerals, they are formed during the processes of sedimentation and biological treatment of effluents. After treatment, the sludge can be stabilized, dehydrated, or incinerated to reduce its volume and environmental impact. They find various applications in the construction sector as a partial substitute for certain materials. Concrete pavers are prefabricated elements widely used in urban and landscape development due to their robustness, durability, and versatile aesthetics. Made from a mixture of cement, aggregates, water, and sometimes additives, they offer high resistance to compression and extreme weather conditions, such as freezing and thawing. Available in various shapes, sizes, colors, and finishes, concrete pavers allow for the creation of diverse patterns, ranging from simple designs to complex configurations. The valorization of wastewater treatment sludge in concrete pavers constitutes an innovative and sustainable solution to reduce the environmental impact of waste from treatment plants. After treatment, the sludge can be transformed into ash through incineration to be integrated into concrete as a partial substitute for cement or aggregates. This approach offers a double opportunity: to reduce the volumes of sludge destined for landfilling and to lower the carbon footprint of paving stone production, particularly by replacing part of the cement, whose manufacturing is energy-intensive. The pavers produced with CBE exhibit satisfactory mechanical and durable properties for non-structural applications, such as sidewalks or landscaping.

    Citation

    Saad BAALI , Mekki MAZA , ZINE EL ABIDINE Rahmouni , ,(2025-04-15), Use of sewage sludge in Concrete pavers,5th International Conference on Engineering, Natural and Social Sciences,Konya, Turkey

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  • 2024-12-24
  • 2024-12-24

    Valorization of glass waste in brick manufacturing

    Abstract : The integration of glass waste into the production of fired clay bricks is an innovative and sustainable approach to waste management. This method not only reduces the environmental impact associated with glass waste disposal but also enhances the efficiency and sustainability of clay brick manufacturing processes. Traditionally, brick making relies on materials such as clay. By integrating glass waste recovered from processing and recycling industries into the brick manufacturing process, it is possible to reduce dependence on natural resources while minimizing waste. Glass waste can be processed into fine powder and incorporated into the composition of raw material mixtures used for brick manufacturing. The percentage of glass waste that can be added in the manufacture of bricks may vary depending on several factors, including the specific characteristics of the materials used, the quality requirements of the final bricks, regulatory standards, and the manufacturing techniques used. However, generally, up to approximately 30% glass waste can be incorporated into raw material mixtures for brick production without significantly compromising their mechanical properties or durability. However, challenges remain, particularly regarding the efficient collection and sorting of glass waste, as well as the optimization of production processes to ensure uniform performance and quality of bricks.

    Citation

    Saad BAALI , Mekki MAZA , ZINE EL ABIDINE Rahmouni , ,(2024-12-24), Valorization of glass waste in brick manufacturing,5th International Conference on Scientific and Academic Research,Konya, Turkey

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  • 2024-11-23
  • 2024-11-23

    Valorization of plastic waste in the manufacture of terracotta bricks

    Abstract – Terracotta bricks are traditional building materials made from clay, molded and then fired at high temperatures, which gives them remarkable strength and durability. Known for their red-orange color, they are appreciated for their resistance to weathering, their thermal stability and their ability to provide good acoustic insulation. Plastic waste poses a major threat to the environment due to its long decomposition time and its ubiquity in ecosystems. Waste plastics can be crushed and replaced in percentage with clay used to make terracotta bricks, and the procedure for making terracotta bricks remains similar, but with adjustments to ensure that embedded plastics do not do not compromise the quality of the bricks. This method helps divert plastics from landfills and oceans, thereby reducing pollution, and plastics can improve certain properties of bricks, such as thermal insulation (thus reducing energy requirements for heating and cooling buildings) and lightness (Bricks containing plastic can be lighter than traditional bricks, making them easier to handle and reducing transport costs). Integrating plastic waste into clay bricks offers firstly an innovative solution to reduce plastic pollution, secondly reducing the demand for natural resources such as clay and sand, thirdly reducing energy consumption for brick manufacturing (lower temperature) while creating sustainable building materials.

    Citation

    Saad BAALI , Mekki MAZA , ZINE EL ABIDINE Rahmouni , ,(2024-11-23), Valorization of plastic waste in the manufacture of terracotta bricks,2nd International Conference on Trends in Advanced Research,Konya, Turkey

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  • 2024-11-19
  • 2024-11-19

    Valorisation des boues d’épuration en matériaux de construction

    La quantité croissante de boues d'épuration devenant un problème urgent et inévitable pour chaque pays, ses applications dans la production de matériaux de construction et de construction offrent une solution alternative pour l'élimination des boues et la récupération des ressources. Comme pour l'argile et le ciment Portland, les principaux oxydes dans les boues d'épuration sont SiO2 (10–25 %), Al2O3 (5–10 %) et CaO (10–30 %) qui sont augmentés dans les cendres des boues après incinération à 25–50 % , 10–20 % et 15–30 %. Par conséquent, ces déchets solides peuvent être utilisés non seulement comme matière première pour la production d'éco-ciment, de briques, de matériaux céramiques et d'agrégats légers par le processus de frittage, mais également comme adjuvants supplémentaires dans les matériaux cimentaires tels que les composants pouzzolaniques, les agrégats fins ou les matériaux de remplissage.

    Citation

    Mahmoud BOUSLAH , Mekki MAZA , ZINE EL ABIDINE Rahmouni , Saad BAALI , ,(2024-11-19), Valorisation des boues d’épuration en matériaux de construction,The Digitization of Waste Management, a Tool for Environmental Protection and Sustainable Development,Palais des Expositions – Pin Maritime (Pavilion Saoura) Alger, Algerie

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  • 2024-11-16
  • 2024-11-16

    VALORIZATION OF SEWAGE SLUDGE INTO CERAMIC MATERIALS

    Abstract : The valorization of sewage sludge into ceramic materials is an innovative method to recycle wastewater treatment residues into construction products, thus contributing to more sustainable waste management. This process begins with the dewatering of the sludge, reducing its water content to facilitate its handling. The sludge is then mixed with traditional raw materials, such as clay, to form a homogeneous mixture. This mixture is shaped into bricks, tiles or other ceramic shapes, then fired at high temperatures (usually between 900 and 1200°C). Firing stabilizes the potentially toxic components of the sludge, such as heavy metals, and gives the materials their mechanical, aesthetic and durability properties. The use of sewage sludge in the manufacture of ceramics has several advantages: it significantly reduces the volume of waste to be disposed of, reduces the consumption of natural raw materials, and produces materials with properties comparable to, or even superior to, those of traditional ceramics. However, challenges remain, including the variability of sludge composition depending on its origin, and the need to strictly control contaminants to ensure the safety of finished products. In short, this recovery is part of a circular economy approach, promoting the reduction of the ecological footprint of sewage sludge while contributing to the production of sustainable and environmentally responsible construction materials.

    Citation

    Saad BAALI , Mekki MAZA , ZINE EL ABIDINE Rahmouni , ,(2024-11-16), VALORIZATION OF SEWAGE SLUDGE INTO CERAMIC MATERIALS,INTERNATIONAL CERAMICS AND COMPOSITE MATERIALS SYMPOSIUM,,ISPARTA, TÜRKİYE

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  • 2024-04-19
  • 2024-04-19

    Use of fly ash in the manufacture of ceramics to improve several properties

    Fly ash is a fine residue that is produced during the combustion of coal in coal-fired power plants. They are transported by combustion gases and collected from the chimneys of power plants. Fly ash is mainly composed of fine particles of silica, alumina, iron and other metal oxides. The use of fly ash in the manufacture of ceramics can improve several properties, such as mechanical strength (they can act as reinforcing agents in ceramics, thus increasing their resistance to bending, compression), strength wear and abrasion (making them more durable in environments subject to heavy wear, this makes them suitable for applications such as flooring, refractory bricks), durability (The addition of ash Fly ash can help control the density and porosity of ceramics), thermal shock resistance and dimensional stability (Fly ash often contains refractory components such as silica and alumina, which improve the thermal stability of ceramics). By judiciously incorporating fly ash into ceramic manufacturing, it is possible to obtain more efficient, durable and economical materials for a variety of industrial and technical applications.

    Citation

    Saad BAALI , ,(2024-04-19), Use of fly ash in the manufacture of ceramics to improve several properties,2nd International Conference on Scientific and Innovative Studies ICSIS 2024,Konya/Turkey

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  • 2023-12-05
  • 2023-12-05

    L'intervention s'est déroulée sous forme de discussion et de pose de quelques questions.

    Un colloque doctoral sur les outils d’aide et d’accompagnement des doctorants, la méthodologie d’élaboration d’une thèse de doctorat et la publication d’un article scientifique dans une revue indexée

    Citation

    Saad BAALI , ,(2023-12-05), L'intervention s'est déroulée sous forme de discussion et de pose de quelques questions.,Un colloque doctoral sur les outils d’aide et d’accompagnement des doctorants, la méthodologie d’élaboration d’une thèse de doctorat et la publication d’un article scientifique dans une revue indexée,USTHB - Alger

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  • 2023-10-17
  • 2023-10-17

    The intervention was through discussion and asking some questions

    Day 01: Optimal/Custom Designs : - Recap of basic DOE: factorial, fractional factorial, RSM and DSD designs - A case study example of custom design - Introduction to optimality criteria (D, I, A, Alias) - Where to find additional resources. Day 02: Curve or Functional Responses : - Examples where time is a variable - Additional examples of curve responses, including spectra and chromatograms - Functional and nonlinear modelling solutions for curve responses. Day 03: Sequential Design of Experiments: - The efficiency of sequential experimentation - Scoping, screening, optimisation, robustness - Bayesian optimisation

    Citation

    Saad BAALI , ,(2023-10-17), The intervention was through discussion and asking some questions,Your guide to solving complex problems by mastering Design of Experiments,Londres / Angleterre

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  • 2023-09-26
  • 2023-09-26

    Improving sludge management and transforming waste into sustainable resources

    Sludge valorization, also called sludge management, is an important field in the treatment of wastewater and solid waste worldwide. Sludge is the solid byproduct generated during the treatment of wastewater in sewage treatment plants. They often contain organic matter, mineral elements and other contaminants, making them potentially harmful to the environment if not properly managed. However, there are many ways to value sludge and use it beneficially rather than simply disposing of it. Here are some of the sludge recovery methods: Composting, Agricultural use, Energy production, Biogas production and Production of construction materials. Using sludge to make bricks has many environmental benefits, including reducing waste, reducing demand for natural resources, decreasing greenhouse gas emissions, and creating sustainable building products. However, it is essential to comply with local and national environmental regulations and implement strict quality controls to ensure the safety and quality of bricks made from sludge.

    Citation

    Saad BAALI , ,(2023-09-26), Improving sludge management and transforming waste into sustainable resources,3rd International Conference on Innovative Academic Studies September 26 – 28 in 2023 at Konya/Turkey.,Konya/Turkey

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