|
Rahul Khanna
Deepak Mathur
Keywords:
Stone Matrix Asphalt, stone to stone contact, drain down, fiber additives, modified bitumen, Shredded Waste Plastic
Abstract:
Stone Matrix Asphalt (SMA) is a bituminous mixture with enhanced rut resistance and durability due to its gap-graded structure with higher coarse aggregate and binder content. Stone-on-stone contact is crucial for SMA, but drain down at high temperatures can be managed with stabilizing additives. In a study, Stone Mastic Asphalt (SMA) blends were created using different aggregate sizes, binders like VG 40 bitumen and PMB grade 40, Cellulose Fiber (CF), and Stone Wool Powder (SWP). Drain down was controlled by adjusting fiber and SWP content. Mixtures were evaluated for various properties using Marshall mix design and Superpave Gyratory Compactor. PMB 40 and CF mixtures showed superior performance, with 8% and 12% SWP content performing well. SMA 1 gradation generally outperformed SMA 2, except in moisture susceptibility. Cost analysis revealed PMB 40 and CF mixtures were both effective and cost-efficient for road construction.
|
|
International Journal of Recent Research and Review
ISSN: 2277-8322
Vol. XVII, Issue 2
June 2024
|
PDF View
PUBLISHED
June 2024
ISSUE
Vol. XVII, Issue 2
SECTION
Articles
|
