Characterization of Asphalts Cements by Thermomicroscopy and Differential Scanning Calorimetry: Correlation to Classic Physical Properties

Claudy, P.; Létoffé, J. M.; King, Gayle; Plancke, J.P.

doi:10.1080/08843759208916019

Cited by 68 publications

(43 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the increase of asphaltenes content, the value of VTS becomes smaller, which indicates that the temperature susceptibility of bitumen is improved. The result matches well with the previous studies that the asphaltenes display the lowest temperature susceptibility among the four generic bitumen fractions and do not exhibit any thermal transition in the normally investigated temperature range (up to 200 ℃) [7,14] .…”

Section: The Effect Of Chemical Compositions On Temperature Susceptibsupporting

confidence: 93%

“…A negative correlation is revealed between the value of VTS and the content of aromatics and the correlation coefficient is 0.82056. Consequently, a certain relationship exists in bitumens that the temperature susceptibility may be improved with the increasing content of aromatics with lightly condensed aromatic rings which are more viscous than the saturates at the same temperature [14] and thus provide a "protection" from the temperature changes.…”

Section: The Effect Of Chemical Compositions On Temperature Susceptibmentioning

confidence: 99%

See 1 more Smart Citation

Effect of chemical compositions on temperature susceptibility of bitumens

Liang

Feng

2010

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

View full text Add to dashboard Cite

The viscosity of five bitumens was measured at different temperatures and the viscosity-temperature relationship was developed to evaluate the temperature susceptibility of different bitumens. The generic fractions (i e, saturates, aromatics, resins and asphaltenes) of the bitumens were separated and tested by thin-layer chromatography with flame ionization detection (TLC-FID) and the effect of chemical compositions on temperature susceptibility of bitumens was analyzed using the linear regression method. The experimental results show that the four generic fractions play an inconsistent role in the temperature susceptibility of bitumens and the correlation degree of each fraction is somewhat different. The existence of aromatics and asphaltenes can lower the sensitivity to temperature changes whereas saturates and resins may have an adverse impact on the temperature susceptibility of bitumens. As for the correlation degrees, resins show the closest correlation with the temperature susceptibility of bitumens, then asphaltenes and aromatics, and the correlation between temperature susceptibility and saturates is relatively weak.

show abstract

Section: The Effect Of Chemical Compositions On Temperature Susceptibsupporting

confidence: 93%

Section: The Effect Of Chemical Compositions On Temperature Susceptibmentioning

confidence: 99%

Effect of chemical compositions on temperature susceptibility of bitumens

Liang

Feng

2010

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

View full text Add to dashboard Cite

show abstract

“…Bitumen exhibits a glass transition around −20°C, although it varies in a very wide range from +5°C down to −40°C depending essentially on the crude origin and somewhat less on the process [19][20][21][22][23]. The transition range typically spans 30 to 45°C and − 20°C corresponds to the typical midpoint value [23].…”

Section: Bitumen Overall Physical and Chemical Propertiesmentioning

confidence: 99%

The colloidal structure of bitumen: Consequences on the rheology and on the mechanisms of bitumen modification

Lesueur¹

2009

Advances in Colloid and Interface Science

1,329

710

View full text Add to dashboard Cite

“…Aromatics contain aromatic rings and associated side chains. Their carbon skeletons are slightly aliphatic with lightly condensed aromatic rings [24].…”

Section: Molecular Weight Analysismentioning

confidence: 99%

Physicochemical and pyrolysis properties of SARA fractions separated from asphalt binder

Zhang

Shi

et al. 2015

J Therm Anal Calorim

View full text Add to dashboard Cite

To further understand thermal properties of asphalt binder, four fractions, namely saturates, aromatics, resins and asphaltenes (SARA), were first separated from asphalt binder. Then, physicochemical and pyrolysis properties of SARA fractions were characterized. The results indicate that the contents of aromatics and resins in asphalt binder are higher than that of saturates and asphaltenes. The number-average molecular weights show a successive increase trend from saturates to asphaltenes. Saturates and aromatics contain similar bonds or functional groups, and aromatics contain a smaller number of saturated hydrocarbons than saturates. Also, resins and asphaltenes show several similar transmittance peaks in Fourier transform infrared spectroscopy (FTIR) spectra. Saturates, aromatics and asphaltenes contain more saturated hydrocarbons than that of resins. Further, FTIR spectra of saturates and aromatics are more similar to that of asphalt binder. Some chemical compositions, bonds and functional groups are only shown in FTIR spectra of SARA fractions through which asphalt components can be further understood. Furthermore, differential thermogravimetry curves of asphalt binder and its SARA fractions exhibit obvious unimodal characteristics, indicating that their pyrolysis processes are one-step reaction. The residue yield ratios, the temperatures corresponding to initial decomposition temperature, the main decomposition range and the maximum mass loss rate successively increase from saturates to asphaltenes. It is concluded that the thermal stability of each SARA fraction is successively increased from saturates to asphaltenes.

show abstract

Characterization of Asphalts Cements by Thermomicroscopy and Differential Scanning Calorimetry: Correlation to Classic Physical Properties

Cited by 68 publications

References 1 publication

Effect of chemical compositions on temperature susceptibility of bitumens

Effect of chemical compositions on temperature susceptibility of bitumens

The colloidal structure of bitumen: Consequences on the rheology and on the mechanisms of bitumen modification

Physicochemical and pyrolysis properties of SARA fractions separated from asphalt binder

Contact Info

Product

Resources

About