The Use of DMA to Characterize the Aging of Asphalt Binders

Released on by Ioan I. Negulescu
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  • The Use of DMA to Characterize the Aging of Asphalt Binders Book Detail

  • Author : Ioan I. Negulescu
  • Release Date : 2010
  • Publisher :
  • Genre : Asphalt
  • Pages : 72
  • ISBN 13 :
  • File Size : 10,10 MB
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The Use of DMA to Characterize the Aging of Asphalt Binders by Ioan I. Negulescu PDF Summary

Book Description: This report presents issues associated with long-term aging of polymer modified asphalt cements (PMACs) as reflected by dynamic mechanical analysis (DMA) data. In this study a standard SBS (styrene-butadiene-styrene block copolymer) polymer modified asphalt cement containing 3% copolymer (PMAC) meeting LADOTD specifications for PAC-40HG and PG 76-22M was selected and subjected to accelerated laboratory aging. Procedures were developed for simulation of long term aging of asphalt binders using multiple pressure aging vessel (PAV) operations in the absence and in the presence of water. Three, five and seven year old field aged asphalt samples originally of similar PMAC composition as that of PG 76-22 listed above were recovered from a wearing course mixture located on interstate I-55 near Granada, MS. All binders were characterized with respect to their composition and rheological properties.

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