Effect of Cement, Brick, and Marble Dust Fillers on the Moisture Sensitivity of Asphalt Mixtures under Extended Sewage and Fresh-Water Immersion | ||
| JES. Journal of Engineering Sciences | ||
| Articles in Press, Accepted Manuscript, Available Online from 01 November 2025 | ||
| Document Type: Research Paper | ||
| DOI: 10.21608/jesaun.2025.412002.1663 | ||
| Authors | ||
| Talaat Abdel-Wahed* 1; Ahmed Salama2; Ahmed Khaled Abdella Ahmed3 | ||
| 1civil department, Faculty of engineering, Sohag university, Sohag, Egypt. | ||
| 2Civil Engineering Department, Higher Institute of Engineering and Technology - Sohag, Egypt | ||
| 3Civil Engineering Department, Faculty of Engineering, Sohag University, Egypt | ||
| Abstract | ||
| The urban roads in Upper Egypt suffer from sewage-related issues due to the prolonged accumulation of wastewater—often exceeding 24 hours—on asphalt surfaces. Such exposure accelerates the deterioration of pavement layers, particularly in areas with limited drainage systems, high groundwater levels, and frequent leakage from aging sewage networks. Despite several studies addressing moisture damage in asphalt mixtures, limited evidence exists regarding the comparative effects of sewage and fresh water when using waste-derived fillers. This study investigates the performance of asphalt mixtures incorporating cement dust, brick dust, and marble dust as mineral fillers. These fillers were selected as locally available waste materials in Upper Egypt, providing both economic and environmental benefits by reducing disposal problems and replacing conventional fillers. A total 45 specimens were prepared using the Marshall mix design method to determine the optimum asphalt content for each filler type and were subsequently submerged in either sewage or fresh water for 28 days. It was hypothesized that sewage water, due to its organic matter, salts, and acidic content, would cause greater deterioration, while cement dust would provide higher resistance to moisture-induced damage compared to marble and brick dust. Marshall Stability and Indirect Tensile Strength tests were conducted under both dry and wet conditions. The results confirmed this hypothesis, demonstrating that mixtures with cement dust exhibited superior stability and retained strength, effectively mitigating the negative effects of sewage exposure. | ||
| Keywords | ||
| sewage, asphalt mixtures'; performance, Marshall Stability, Indirect Tensile Strength, cement dust | ||
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