A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Characterization of bitumen by differential scanning calorimetry
The behaviour of bitumen during thermal treatment was investigated by d.s.c. (differential scanning calorimetry) to provide a better understanding of the interactions between the paraffinic and aromatic fractions. It was shown that two glass transitions take place after cooling at constant rate. The magnitude and temperature of these transitions were found to depend on the cooling rate. At low cooling rate (< 1 K.min-1) the glass transition at the higher temperature vanishes and an endothermic peak is obtained. From these observations a segregation mechanism was proposed to explain the behaviour of bitumen during cooling. With high cooling rates segregation of the paraffinic fraction results in the formation of two interactive glass-like fractions. With very slow cooling paraffins separate and crystallize, giving rise to an endothermic peak in the d.s.c., and the glass transition of the remaining bitumen fraction is consequently hindered.
Characterization of bitumen by differential scanning calorimetry
The behaviour of bitumen during thermal treatment was investigated by d.s.c. (differential scanning calorimetry) to provide a better understanding of the interactions between the paraffinic and aromatic fractions. It was shown that two glass transitions take place after cooling at constant rate. The magnitude and temperature of these transitions were found to depend on the cooling rate. At low cooling rate (< 1 K.min-1) the glass transition at the higher temperature vanishes and an endothermic peak is obtained. From these observations a segregation mechanism was proposed to explain the behaviour of bitumen during cooling. With high cooling rates segregation of the paraffinic fraction results in the formation of two interactive glass-like fractions. With very slow cooling paraffins separate and crystallize, giving rise to an endothermic peak in the d.s.c., and the glass transition of the remaining bitumen fraction is consequently hindered.
Characterization of bitumen by differential scanning calorimetry
Charakterisierung von Bitumen mit Differentialscanningkalorimetrie
Chambrion, P. (author) / Bertau, R. (author) / Ehrburger, P. (author)
Fuel ; 75 ; 144-148
1996
5 Seiten, 5 Bilder, 1 Tabelle, 13 Quellen
Article (Journal)
English
Differential Scanning Calorimetry Applied to Bitumen: Results of the RILEM NBM TG1 Round Robin Test
| Springer Verlag | 2013
| British Library Online Contents | 2013