首页   按字顺浏览 期刊浏览 卷期浏览 CHARACTERIZATION OF PAVING ASPHALTS BY DIFFERENTIAL SCANNING CALORIMETRY
CHARACTERIZATION OF PAVING ASPHALTS BY DIFFERENTIAL SCANNING CALORIMETRY

 

作者: P. CLAUDY,   J.M. LETOFFE,   G.N. KING,   J.P. PLANCHE,   B. BRULE,  

 

期刊: Fuel Science and Technology International  (Taylor Available online 1991)
卷期: Volume 9, issue 1  

页码: 71-92

 

ISSN:0884-3759

 

年代: 1991

 

DOI:10.1080/08843759108942254

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Differential Scanning Calorimetry (D.S.C.) has been used to characterize the thermal behavior of various paving asphalts and their chromatographic fractions. In a single determination, several parameters, such as the glass transition temperature of the hydrocarbon matrix and the crystallized fractions, may be determined with good reproducibility. The glass transition is attributed to the aromatic and one part of the saturated fractions. The rest of the satured fraction has been found responsible for the endoihermal effect observed on warming which corresponds to the dissolution into the matrix. A method of determination of the crystallized fractions is described, and a comparison with the L.C.P.C. (Laboratoire Central des Ponts et Chaussdes - French Highway Administration Laboratory) method is made. The L.C.P.C. method was found to underestimate the real percentage of the crystallized fractions.

 

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