A5049150737- Concrete and Cement Materials Research
- Innovations in Concrete and Construction Materials
- Innovative concrete reinforcement materials
- Grouting, Rheology, and Soil Mechanics
- Microstructure and Mechanical Properties of Steels
- Tunneling and Rock Mechanics
- Aluminum Alloy Microstructure Properties
- Fatigue and fracture mechanics
- Water management and technologies
- High-Velocity Impact and Material Behavior
- High Temperature Alloys and Creep
- Environmental Chemistry and Analysis
- Welding Techniques and Residual Stresses
- Recycling and utilization of industrial and municipal waste in materials production
- Concrete Corrosion and Durability
- Infrastructure Maintenance and Monitoring
- Recycled Aggregate Concrete Performance
- Mechanical Behavior of Composites
- Adsorption and biosorption for pollutant removal
- Dam Engineering and Safety
- Drilling and Well Engineering
- Microbial Applications in Construction Materials
École Nationale Supérieure d'Hydraulique
2014-2025
University of Blida
2010-2023
Université de Mostaganem
2011-2018
École Normale Supérieure - PSL
2012
ABSTRACT This study explores the impact of incorporating recycled brick sand as a partial replacement for natural on mechanical and transport properties roller-compacted concrete (RCC) dam construction. RCC mixtures were prepared with varying levels two different water/cement (W/C) ratios cement dosages. Workability was assessed using Vebe apparatus, while compressive tensile strengths evaluated at ages. Additionally, porosity, water permeability, capillary absorption, thermal conductivity...
This study focus on the optimization of operating conditions for activated carbons preparation starting from synthetic waste (tires) and agricultural (date pits) by chemical activation. The experimental design was used in order to determinate optimal a precursor with high properties. results show that temperature 550°C particle diameter 800 um are interesting. specific surface area reached 770 1030m2/g respectively active obtained tires date pits. In evaluate efficiency these adsorbents, we...
Abstract In this paper, the mechanical properties and microstructures of AISI4140 low alloy steel under different tempering conditions are investigated. The samples quenched, tempered to a martensite structure loaded fracture by means Charpy machine according standard test. Fractography analysis showed that morphology surface was changed increasing temperature. variation energy impact as function temperature exhibits minimum values at 300 °C, which suggests occurrence temper embrittlement.
Le présent travail, propose une méthodologie simplifiée, s’appuyant sur des méthodes de formulation béton connues dans la littérature et essais d’optimisations au laboratoire, permettant détermination d’une composition d’un à haute performance « BHP » fibre BFHP ». Pour ce faire, large caractérisation (physique mécanique) matériaux utilisés a été conduite. Suivie étude préliminaire, ayant pour objectif d’optimiser le dosage en Superplastifiant (0,65-1%) du ciment (500-700) kg/m3 se basant...
La durabilité des bétons au laitier de haut fourneau dépend fortement l’activité hydraulique du laitier. Dans cette étude, un algérien, caractérisé par une faible hydraulicité, est utilisé dans la fabrication mortiers comme substituant ciment à taux 0, 30 et 50%. En plus d’une caractérisation mécanique, l’effet sur évalué essais perméabilité l’oxygène, diffusion chlorures en régime permanent ainsi que conduction ions chlore (essai accéléré ASTM). Les résultats montrent, malgré réactivité...