Laboratory Evaluation of Mechanical Properties of Asphalt Mixtures Exposed to Sodium Chloride

Spreading sodium chloride salt is one of the most effective operations to tackle ice formation on surface a road pavement during cold seasons, thus ensuring safer driving conditions. However, in addition negative environmental impact, solution could influence properties and durability asphalt mixtures. Based these premises, this laboratory study aims characterize mechanical different mixtures exposed solution. Four types were immersed 10 wt% for four cycles. The macroscopic surface, moisture absorption, Marshall stability, quotient, dynamic modulus, resilient modulus evaluated. behavior was severely deteriorated by exposure immersion cycles, resulting damaged loose structure, degraded stiffness. mixture with polymer modified binder showed best overall performance. Traditional neat bitumen better performance resist compared stone mastic because their dense whereas traditional had sensitivity similar that bitumen. findings study, using recommended when maintenance entailing use are envisaged.