Evaluation of the life shortening of flexible pavements

Abstract

One of the reasons of life shortening of pavements operation is designing regardless of their administrative facts. The amount of transferred load between the layers depends on various factors such as the degree of adhesion and internal friction between the layers. If these layers limit by using proper bonding and sufficient density between the layers, they act integrated. In this study we evaluate the various pavement failures due to the possibility of friction under various loadings. Flexible pavement failure criteria are intended the vertical strain on the subsoil and analytically calculate the strain tolerance and pavement life of this strain were compared. According to these studies, shortening the life of pavements with limited layers and without internal friction has been determined compared to the pavement with internal friction.

Framework for Design of Sustainable Flexible Pavement

“…Design can influence the sustainability of the pavement in terms of life cycle costs, performance, and the materials used. Thus, the need to minimize the use of scarce primary resources is becoming urgent in the pavement industry [27]. Considering sustainability into pavement design provides various criteria for assessing pavement investment decisions, against environmental, social, and economic impacts [34].…”

“…Similarly, sustainable pavement can be defined as a pavement that pleased long-life engineering reliability, with a minimum acceptable life cycle economics and environmental impacts. The need to minimize the use of scarce primary resources is becoming more urgent in the pavement industry [27]. Thus, sustainable pavement design is based on some criteria, such as minimizing reliance on natural resources, reducing energy consumption and GHG emissions, limiting air, water, and noise pollution, and improving health, safety, risk prevention, and user comfort [28].…”