Assessment of the Deterioration Model for Asphalt Concrete Pavement

Saad Issa Sarsam ()

Journal of Asian Scientific Research, 2019, vol. 9, issue 7, 71-80

Abstract: Rutting is one type of major distress, it exhibits a negative impact to the serviceability characteristics of the flexible pavement, to the residual life of pavement structure and to the safety and ride quality for traffic. Monitoring the accumulation of pavement distress is beneficial in obtaining the deterioration model which can be implemented in the decision of maintenance. Moreover, such model can focus on the properties of materials with sustainable behavior. Simple empirical relationship between the elastic strain and the long-term plastic behavior of pavement materials was established. The aim of this work is to study the in-service behavior of pavement material and relates the pavement layers composition to pavement age. The -expired life since construction- of Asphalt concrete pavement of Mosul-Baji highway was related to gradation variables, Asphalt and voids content and structural properties variables (Marshall properties, and Stiffness). An Asphalt Concrete deterioration model was developed by combining the data from laboratory testing on core and slab specimens obtained from the various layers of the pavement and performing a regression analysis. The model describes the structural deterioration of Asphalt Concrete pavement. It was concluded that such modeling may give a correct basis for treatment planning, project evaluation, management and funding.

Keywords: Asphalt concrete; Deterioration; Model; Pavement age; Stiffness; Deformation; Rutting; Stiffness; Pavement. (search for similar items in EconPapers)
Date: 2019
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