Laboratory Evaluation of Fiber-Modified Asphalt Mixtures Incorporating Steel Slag Aggregates

Vigorous and continued efforts by researchers engineers have contributed towards maintaining environmental sustainability through the utilization of waste materials in civil engineering applications as an alternative to natural sources. In this study, granite aggregates asphaltic mixes were replaced electric arc furnace (EAF) steel slag with different proportions identify best combination terms superior performance. Asphalt mixtures showing performance further reinforced polyvinyl alcohol (PVA), acrylic, polyester fibers at dosages 0.05%, 0.15%, 0.3% weight aggregates. The tests study resilient modulus, moisture susceptibility, indirect tensile fatigue cracking test. findings revealed that asphalt containing coarse aggregate exhibited comparison other substitutions. Moreover, synthetic content 0.05% almost comparable unreinforced mixtures. Modifying PVA, proportion 0.15% improved resistance 41.13%, 29.87%, 18.97%, respectively. Also, fiber-modified enhanced about 57%, 44%, 39%, results modulus demonstrated fiber increase, decreases. Therefore, introducing has slightly decreased On hand, mechanistic-empirical pavement design showed a high shown lower service life than control due low modulus. contrary, based on laboratory results, incorporating potential reduce thickness layer 14.9%, 11.80%, 8.70%,