چکیده مقاله
The increasing demand for sustainable pavement materials has intensified interest in bio‑based additives for bitumen modification Among these, lignosulphonate LS , a byproduct of the pulp and paper industry, has emerged as a promising, cost effective, and environmentally friendly modifier for asphalt binders This review synthesizes current research on the effects of incorporating three dosage levels of LS low, medium, and high on the physicochemical, rheological, and mechanical properties of bitumen and asphalt mixtures Studies consistently report that low to medium LS contents improve binder viscosity, reduce temperature susceptibility, and enhance workability during mixing and compaction Medium dosages often demonstrate optimal performance, contributing to increased softening point, improved rutting resistance, and better moisture sensitivity resistance in asphalt mixtures Conversely, excessive LS addition may lead to reduced stiffness and increased moisture susceptibility due to its hydrophilic nature The review highlights key mechanisms governing LS bitumen interaction, including hydrogen bonding, dispersion effects, and biopolymer reinforcement Overall, the literature confirms that lignosulphonate is a viable green additive for improving asphalt performance when used within an optimal dosage range, supporting its broader adoption in sustainable pavement engineering
کلیدواژهها
نویسندگان
Armin Hatami Rad
M Sc Student in Civil Engineering, Department of Civil Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran
Mohammad Hossein Kamrani
Master's student in Construction Management Engineering, Department of Civil Engineering, Sajjad University, Mashhad, Iran
Afshin Tavasoli Farsheh
Department of Agriculture, Mashhad Branch, Islamic Azad University, Mashhad, Iran
Reza Taghizadeh Khaje Ghiyasi
Master in Civil Engineering, Islamic Azad University, Gorgan Branch, Nore, Iran
شیوه ارجاع
Hatami Rad, Armin and Kamrani, Mohammad Hossein and Tavasoli Farsheh, Afshin and Taghizadeh Khaje Ghiyasi, Reza,1404,Lignosulphonate as a Sustainable Asphalt Modifier: A Review,Third International Conference on applied researches in civil engineering, architecture and urban planning
ارائهشده در
مجموعه مقالات سومین کنفرانس بین المللی پژوهش های کاربردی در مهندسی عمران، معماری و شهرسازی30 آبان 1404