الفهرس 
Introduction and Aim of the workOnly 14 pages are availabe for public view
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Abstract
Usage of antistripping additives to improve hot mix asphalt resistance to moisture damage has been studied by many researchers and found to be an effective solution to the design and construction of asphalt pavement susceptible to stripping. The objective of this study is to investigate the moisture resistance of asphalt mixtures modified with liquid antistripping agents in comparison to traditional solid antistripping additives, and to evaluate their cost effectiveness. Bitumen penetration 80-100, aggregate gradation type 4C (according to Egyptian specification), two types of liquid antistripping agents, and two types of traditional solid antistripping agent were used. The liquid agents were Fatty Acid Polyamine (FAP) and Phosphoric Acid-Based anti-stripping agent (PAB). Solid agents were Portland cement and lime. Agents were added at different dosages to evaluate asphalt moisture damage resistance. Marshall Mix design was conducted to design Hot Mix Asphalt (HMA), the designed HMA mixed with the above-mentioned antistripping agents were evaluated by conducting Boiling water test, Immersion compression test and modified Lottman test. Observation and quantification results showed that the liquid antistripping additives had better performance when compared to the solid agents and the control samples. FAP showed an improvement of 30.48% Tensile Strength Ratio (TSR) and 27.2% of retained coated area as compared to the conventional bitumen. The economic analysis also showed that FAP is the most cost effective.