are collaborating to evaluate the performances of three flexible pavement designs, including two perpetual/long-life (with and without the rich bottom mix (RBM) layer) and one conventional pavement designs. The three flexible pavement designs are being monitored by strain, pressure, temperature and moisture sensors, which are installed in the asphalt, granular and sub-base layers. Two types of ...

Modern roadways provide road users with a comfortable and safe ride to their destinations. Due increasing traffic demands maximum allowable loads, authorities should also pay attention the structural soundness of pavements while seeking cost-effective timely maintenance or minor rehabilitation activities. This means that sustainable pavement preservation strategy is needed includes an optimal c...

In this paper, we propose a new method of optimization based on genetic algorithms using the MATLAB toolbox “Global Optimization”. The algorithm finds layers moduli flexible pavement through measurement surface deflections under assigned load conditions. First, for forward calculation is validated, then back-calculation proposed, and results are compared, in case airport pavements, with other s...

Over four decades, researchers have extensively focused on bonding flexible pavement layers. Scholars concentrated the partial or complete lack of interlayer between asphalt layers, which is primary cause premature failures, such as cracking, rutting, slippage wearing courses, and decline in life. These defects are observed within high horizontal force areas owing to increased speed, braking, s...

Usability of scoria waste as subbase stabilization material was investigated. Initially, the physical properties were examined. The usage in layer pavement In study, experimental researches such stability to freeze, solidity, strength, Atterberg limits and California Bearing Ratio tests carried out on samples prepared by using waste. Scoria natural quarry materials blended different amounts pro...

Lateritic gravels are the most abundant road materials used in pavement foundations. With scarcity of good quality materials, recourse to lateritic having weak technical characteristics, like quarry Avlamè Benin, is felt with high price stabilizers cement, other methods must be explored cooperation order reduce cost stabilization and, consequently, construction and risks related environmental p...

This study used a cradle-to-cradle Life Cycle Assessment (LCA) approach to evaluate the environmental potentials of urban pavements. For this purpose, road network City Münster (Germany) was selected as case study, and comprehensive data for several phases were collected. The entire is composed flexible pavements designed according specific traffic loads consists main roads (MRs), access (MARs)...

Spending costs in construction of road pavements has turned this subject into one of the significant points in transportation infrastructure of countries. Concrete slabs consider as a paving method with ability of reducing the rehabilitation needs. Therefore, to manage costs and optimize the thickness of concrete pavements, recognizing the amount of determinative factors’ influence will be requ...