Measurements of the Stiffness and Thickness of the Pavement Asphalt Layer Using the Enhanced Resonance Search MethodReportar como inadecuado




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The Scientific World Journal - Volume 2014 2014, Article ID 594797, 8 pages -

Research Article

Department of Civil and Structural Engineering, Universiti Kebangsaan Malaysia, 43600 Selangor, Malaysia

Department of Civil Engineering, Universitas Muhammadiyah, Yogyakarta 55183, Indonesia

Received 22 May 2014; Accepted 21 July 2014; Published 3 September 2014

Academic Editor: Ching-Tai Ng

Copyright © 2014 Nur Mustakiza Zakaria et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Enhanced resonance search ERS is a nondestructive testing method that has been created to evaluate the quality of a pavement by means of a special instrument called the pavement integrity scanner PiScanner. This technique can be used to assess the thickness of the road pavement structure and the profile of shear wave velocity by using the principle of surface wave and body wave propagation. In this study, the ERS technique was used to determine the actual thickness of the asphaltic pavement surface layer, while the shear wave velocities obtained were used to determine its dynamic elastic modulus. A total of fifteen locations were identified and the results were then compared with the specifications of the Malaysian PWD, MDD UKM, and IKRAM. It was found that the value of the elastic modulus of materials is between 3929 MPa and 17726 MPa. A comparison of the average thickness of the samples with the design thickness of MDD UKM showed a difference of 20 to 60%. Thickness of the asphalt surface layer followed the specifications of Malaysian PWD and MDD UKM, while some of the values of stiffness obtained are higher than the standard.





Autor: Nur Mustakiza Zakaria, Nur Izzi Md. Yusoff, Sentot Hardwiyono, Khairul Anuar Mohd Nayan, and Ahmed El-Shafie

Fuente: https://www.hindawi.com/



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