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Determination of the frequency dependent dynamic modulus for asphalt concrete beams using resonant acoustic spectroscopy
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.ORCID iD: 0000-0003-0889-6078
2012 (English)In: Nondestructive Testing of Materials and Structures, Springer Netherlands, 2012, 199-204 p.Chapter in book (Refereed)
Abstract [en]

The objective of this paper is to study the application of resonant acoustic spectroscopy (RAS) to beam shaped asphalt concrete samples. Natural modes of vibration are generated by a small load impulse at different temperatures and an accelerom-eter measures the resulting acceleration through the specimen. By using the Fast Fourier Transform the obtained information is transformed to frequency domain from which the solid's damped natural frequencies can be determined. For each frequency and temperature the corresponding complex modulus is calculated using the approach of RAS. Results of the dynamic modulus from RAS are presented and compared with results of the dynamic modulus calculated according to ASTM E 1876-99 [1]. By using ASTM E 1876-99 only the fundamental frequency of each type of vibrational mode can be used. However, using RAS several resonance frequencies from the same temperature can be used in the evaluation. This opens the possibility of determining the high frequency (or the low temperature) part of the dynamic modulus mastercurve directly from RAS.

Place, publisher, year, edition, pages
Springer Netherlands, 2012. 199-204 p.
Series
RILEM Bookseries, ISSN 2211-0844 ; 6
Keyword [en]
Dynamic modulus, Mastercurve, RAS, Rayleigh-ritz, Resonance frequencies
National Category
Other Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-119886DOI: 10.1007/978-94-007-0723-8_29Scopus ID: 2-s2.0-84874352793ISBN: 978-940070722-1 OAI: oai:DiVA.org:kth-119886DiVA: diva2:614006
Note

QC 20130403

Available from: 2013-04-03 Created: 2013-03-25 Last updated: 2013-04-03Bibliographically approved

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Birgisson, Björn

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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