Solventless fingerprinting of bituminous materials: a high-resolution thermogravimetric method

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DOIResolve DOI: http://doi.org/10.1016/j.tca.2005.06.025
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TypeArticle
Journal titleThermochimica Acta
Volume436
IssueOctober
Pages3542; # of pages: 8
Subjectasphalt cement, bitumen, chemistry, analysis, quality control, thermogravimetric analysis, TGA; Pavements; Roads/Pavement
AbstractThe thermogravimetric analysis (TGA) of bituminous materials by means of a constant heat rate is often plagued by low resolution and poor reproducibility of the degradation or mass loss temperatures. The TGA curve, or the associated differential TGA (DTGA) signal, is thus an unreliable quality control or quality assurance (QC/QA) method. A 2- and 3-step high-resolution TGA/DTGA method was developed for these materials for analysis between 150°C and 800°C. The DTGA results, obtained within 2h, show about ten discrete mass peaks, the profile being material dependant. The reproducibility of the results indicate that the methods may be used for rapid QC/QA and material fingerprinting. The development of the method is detailed and its application is illustrated with the analysis of several bitumens and polymer-modified bituminous sealants.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number47735
17028
NPARC number20377774
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Record identifier1c3ef008-8345-480b-978b-3dcb9d850263
Record created2012-07-24
Record modified2016-05-09
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