Influence of aging on the evolution of structure, morphology and rheology of base and SBS modified bitumen

被引：402

作者：

Wu, Shao-peng ^{[1
]}

Pang, Ling ^{[1
]}

Mo, Lian-tong ^{[1
,2
]}

Chen, Yong-chun ^{[1
]}

Zhu, Guo-jun ^{[1
]}

机构：

[1] Wuhan Univ Technol, Key Lab Silicate Mat Sci & Engn, Minist Educ, Wuhan 430070, Peoples R China

[2] Delft Univ Technol, NL-2600 GA Delft, Netherlands

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2009年 / 23卷 / 02期

关键词：

PAV aging; SBS; Bitumen; Structure; Morphology; Rheology; MODIFIED ASPHALT; DEGRADATION; OXIDATION;

D O I：

10.1016/j.conbuildmat.2008.05.004

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The influence of aging on the evolution of structure, morphology and rheology of base bitumen and SBS modified binders was investigated by Fourier transform infrared (FTIR), atomic force microscopy (AFM) and dynamic shear rheometer (DSR), respectively. Two laboratory simulation aging methods, named standard rolling thin film oven (RTFO) test and pressure aging vessel (PAV) test were applied in this study. The aging temperature of PAV was selected at 60 degrees C, which is considered to be consistent with the real high temperature within an asphalt pavement in the field. After aging, it was found that more carbonyl and sulphoxide groups but less chain segments of butadiene were available. With the oxidation of base bitumen and the degradation of SBS segments, obvious asphaltene micelles appeared in both binders, consistent with the changes of softening point and rheology of base bitumen and SBS modified binders. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1005 / 1010

页数：6

共 23 条

[1] Rheological properties of styrene butadiene styrene polymer modified road bitumens [J].

Airey, GD .

FUEL, 2003, 82 (14) :1709-1719

[2]

Airey GD, 1998, JOURNAL OF THE ASSOCIATION OF ASPHALT PAVING TECHNOLOGISTS, VOL 67, P66

[3] Effect of the thermal degradation of SBS copolymers during the ageing of modified asphalts [J].

Cortizo, MS ;

Larsen, DO ;

Bianchetto, H ;

Alessandrini, JL .

POLYMER DEGRADATION AND STABILITY, 2004, 86 (02) :275-282

[4]

Goodrich J.L., 1988, ASS ASPHALT PAVING T, P116

[5] Direct and continuous methodological approach to study the ageing of fossil organic material by infrared microspectrometry imaging: application to polymer modified bitumen [J].

Lamontagne, J ;

Durrieu, F ;

Planche, JP ;

Mouillet, V ;

Kister, J .

ANALYTICA CHIMICA ACTA, 2001, 444 (02) :241-250

[6] Comparison by Fourier transform infrared (FTIR) spectroscopy of different ageing techniques: application to road bitumens [J].

Lamontagne, J ;

Dumas, P ;

Mouillet, V ;

Kister, J .

FUEL, 2001, 80 (04) :483-488

[7] New direct observations of asphalts and asphalt binders by scanning electron microscopy and atomic force microscopy [J].

Loeber, L ;

Sutton, O ;

Morel, J ;

Valleton, JM ;

Muller, G .

JOURNAL OF MICROSCOPY-OXFORD, 1996, 182 (01) :32-39

[8] Rheological characterization of styrene-butadiene-styrene copolymer modified bitumens [J].

Lu, X ;

Isacsson, U .

CONSTRUCTION AND BUILDING MATERIALS, 1997, 11 (01) :23-32

[9] Chemical and rheological evaluation of ageing properties of SBS polymer modified bitumens [J].

Lu, XH ;

Isacsson, U .

FUEL, 1998, 77 (9-10) :961-972

[10] Low-temperature properties of styrene-butadiene-styrene polymer modified bitumens [J].

Lu, XH ;

Isacsson, U ;

Ekblad, J .

CONSTRUCTION AND BUILDING MATERIALS, 1998, 12 (08) :405-414

← 1 2 3 →