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  <title>Survey of State Highway Authorities and Asphalt Modifier Manufacturers on Perfomance of Asphalt Modifiers</title>
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  <namePart>Romine,  Robert A.</namePart>
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  <publisher>TRB</publisher>
  <dateIssued>1991</dateIssued>
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  <languageTerm type="code">en</languageTerm>
  <languageTerm type="text">English</languageTerm>
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  <form authority="gmd">Computer Software</form>
  <extent>p 61-69 illus</extent>
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  <title>Trr No. 1323 Materials And Construction</title>
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 <note>Trr No. 1323 Materials And Construction, pp. 61-69&#13;
One of the key objectives in the first place of a Strategic Highway Research Program (SHRP) contract was to identify asphalt modifiers with farying levels of pavement performance. Key pavement distress categories identified by SHRP were fatigue cracking, low-temperature cracking, moisturesusceptibility, permanent deformation, and aging. These modifiers will be used in the second phase to evaluate laboratory binder and mixture tests suitable for development of performance-based specifications. Information on asphalt modifiers was obtained from state highway authorities  and asphalt modifiers manufacturers. The questionnaire results were analyzed, and modifiers  with varying levels of performance were identified. Performance ratings for the modifiers evaluated are presented for each pavement distress category.</note>
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  <topic>ASPHALT</topic>
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 <classification>006:656.021</classification>
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  <physicalLocation>Perpustakaan Direktorat Bina Teknik Jalan dan Jembatan Direktorat Jenderal Bina Marga - Kementerian Pekerjaan Umum (NPP: 3273244A00000001)</physicalLocation>
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