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Traffic and Transportation Engineering
Published in P.K. Jayasree, K Balan, V Rani, Practical Civil Engineering, 2021
P.K. Jayasree, K Balan, V Rani
Pavement engineering is a branch of civil engineering that utilizes designing methods to design and maintain flexible (asphalt) and rigid (concrete) pavements. This incorporates roads and highways and includes learning of soils, hydraulics, and material properties. Pavement engineering includes new construction as well as rehabilitation and maintenance of existing pavements. Maintenance frequently includes utilizing designing judgment to make upkeep repairs with the highest long-term advantage and least expense.
Nondestructive Tests
Published in Rajib B. Mallick, Tahar El-Korchi, Pavement Engineering, 2017
Rajib B. Mallick, Tahar El-Korchi
Nondestructive tests used in pavement engineering can be broadly divided into several categories: nuclear equipment, deflection based, electromagnetic, and seismic equipment. Examples of such equipment are discussed in the following sections.
A parameter identification technique for traffic speed deflectometer tests of pavements
Published in Road Materials and Pavement Design, 2023
Zhaojie Sun, Cor Kasbergen, Karel N. van Dalen, Kumar Anupam, Athanasios Skarpas, Sandra M. J. G. Erkens
Non-destructive testing methods are widely used for pavement structural evaluation because they are time-saving and structure-friendly (Maser, 2003). The most commonly used non-destructive testing method in the field of pavement engineering is the Falling Weight Deflectometer (FWD) test, which measures the time-dependent pavement response caused by an impact load (Kutay et al., 2011). The FWD test of pavements can be properly simulated by a theoretical model considering wave propagation, which can be further combined with a nonlinear minimisation algorithm to achieve parameter identification based on FWD measurements. However, the low mobility of the FWD test makes it not that suitable for pavement structural evaluation at network level (Sun et al., 2020b). To solve this issue, some non-destructive testing methods with high mobility have been developed, such as the Traffic Speed Deflectometer (TSD) test.
Incorporating phase change materials in asphalt pavements to melt snow and ice
Published in International Journal of Pavement Engineering, 2022
Miguel A. Montoya, Reyhaneh Rahbar-Rastegar, John E. Haddock
Over the years, asphalt pavements have been designed and constructed to withstand the interacting damage effects of traffic and environment. Traffic loads, primarily those from heavy trucks, cause stresses and strains in pavement structures, whose effects accumulate over time, resulting in pavement deterioration. Additionally, pavement performance is significantly impacted by two main environmental factors: water and ice in the pavement layer and subgrade, and temperature variation throughout diurnal and seasonal cycles (Papagiannakis and Masad 2008). Therefore, pavement engineering encompasses both pavement materials characterisation and the pavement layer structural design to satisfy anticipated traffic and environmental demands.