In situ determination of layer thickness and elastic moduli of asphalt pavement systems by Spectral Analysis of Surface Waves (SASW) method

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Spectral Analysis of Surface Waves (SASW) is a non-destructive method for determining the stiffness profile of pavement sites. The method consists of generation, measurement, and processing of dispersive elastic waves in layered systems. The test is performed on the pavement surface at low strain level, where the elastic properties are considered independent of strain amplitude. During an SASW test, an impact source was used to generate energy at various frequencies. Two vertical acceleration transducers are set up to detect the energy transmitted through the testing media. By recording signals in digitised form using a data acquisition system and processing them, surface wave velocities can be determined by constructing a dispersion curve. Through forward modeling, the shear wave velocities can be obtained, which can be related to the variation of stiffness with depth. This paper presents the results of two case studies for near-surface profiling of two different asphalt pavement sites. Copyright ASCE 2009.

Original languageEnglish
Title of host publicationGeotechnical Special Publication
Pages70-76
Number of pages7
Edition192
DOIs
Publication statusPublished - 2009
Event2009 GeoHunan International Conference - Recent Advancement in Soil Behavior, In Situ Test Methods, Pile Foundations, and Tunneling - Changsha, Hunan
Duration: 3 Aug 20096 Aug 2009

Other

Other2009 GeoHunan International Conference - Recent Advancement in Soil Behavior, In Situ Test Methods, Pile Foundations, and Tunneling
CityChangsha, Hunan
Period3/8/096/8/09

Fingerprint

Asphalt pavements
elastic modulus
asphalt
pavement
Surface waves
Spectrum analysis
spectral analysis
surface wave
Elastic moduli
Pavements
wave velocity
stiffness
Stiffness
Shear waves
Elastic waves
elastic property
elastic wave
forward modeling
transducer
Processing

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering

Cite this

In situ determination of layer thickness and elastic moduli of asphalt pavement systems by Spectral Analysis of Surface Waves (SASW) method. / Ismail, M. A.; Samsudin, Abdul Rahim; Rafek, A. G.; Mohd Nayan, Khairul Anuar.

Geotechnical Special Publication. 192. ed. 2009. p. 70-76.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ismail, MA, Samsudin, AR, Rafek, AG & Mohd Nayan, KA 2009, In situ determination of layer thickness and elastic moduli of asphalt pavement systems by Spectral Analysis of Surface Waves (SASW) method. in Geotechnical Special Publication. 192 edn, pp. 70-76, 2009 GeoHunan International Conference - Recent Advancement in Soil Behavior, In Situ Test Methods, Pile Foundations, and Tunneling, Changsha, Hunan, 3/8/09. https://doi.org/10.1061/41044(351)11
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