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Rheological properties of SEBS, EVA and EBA polymer modified bitumens

Lu, X. / Isacsson, U. / Ekblad, J.

Abstract The rheological properties of various polymer modified bitumens were studied. Three bitumens from two different sources were mixed with styrene-ethylenbutylene-styrene (SEBS), ethylene vinyl acetate (EVA) and ethylene butyl acrylate (EBA) copolymers at different polymer contents. The rheological properties of the modified binders were investigated by means of dynamic mechanical analysis and creep test (bending beam rheometer). The results indicated that polymer modification increased binder elastic responses and dynamic moduli at intermediate and high temperatures, and reduced binder complex and stiffness moduli at low temperatures. Polymer modification also reduced temperature susceptibility, glass transition temperature as well as limiting stiffness temperature. The degree of the improvement generally increased with polymer content, but varied with bitumen source/grade and polymer type.

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Rheological properties of SEBS, EVA and EBA polymer modified bitumens

Lu, X. / Isacsson, U. / Ekblad, J.

Abstract The rheological properties of various polymer modified bitumens were studied. Three bitumens from two different sources were mixed with styrene-ethylenbutylene-styrene (SEBS), ethylene vinyl acetate (EVA) and ethylene butyl acrylate (EBA) copolymers at different polymer contents. The rheological properties of the modified binders were investigated by means of dynamic mechanical analysis and creep test (bending beam rheometer). The results indicated that polymer modification increased binder elastic responses and dynamic moduli at intermediate and high temperatures, and reduced binder complex and stiffness moduli at low temperatures. Polymer modification also reduced temperature susceptibility, glass transition temperature as well as limiting stiffness temperature. The degree of the improvement generally increased with polymer content, but varied with bitumen source/grade and polymer type.

Rheological properties of SEBS, EVA and EBA polymer modified bitumens

Lu, X. / Isacsson, U. / Ekblad, J.

Abstract The rheological properties of various polymer modified bitumens were studied. Three bitumens from two different sources were mixed with styrene-ethylenbutylene-styrene (SEBS), ethylene vinyl acetate (EVA) and ethylene butyl acrylate (EBA) copolymers at different polymer contents. The rheological properties of the modified binders were investigated by means of dynamic mechanical analysis and creep test (bending beam rheometer). The results indicated that polymer modification increased binder elastic responses and dynamic moduli at intermediate and high temperatures, and reduced binder complex and stiffness moduli at low temperatures. Polymer modification also reduced temperature susceptibility, glass transition temperature as well as limiting stiffness temperature. The degree of the improvement generally increased with polymer content, but varied with bitumen source/grade and polymer type.

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Title:

Rheological properties of SEBS, EVA and EBA polymer modified bitumens

Contributors:

Lu, X. (author) / Isacsson, U. (author) / Ekblad, J. (author)

Published in:

Materials and Structures ; 32

Publication date:

1999

ISSN:

DOI:

https://doi.org/10.1007/BF02479440

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Bitumen , Asphalt , Dynamic Mechanical Analysis , Creep Test , Asphalt Binder

Classification:

BKL: 56.45 Baustoffkunde / 51.30 Werkstoffprüfung, Werkstoffuntersuchung
Local classification TIB: 275/6500 / 250/6500

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