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Physical and rheological characteristics of liquid natural rubber modified bitumen
Author(s) -
Nair N. Radhakrishnan,
Mathew N. M.,
Thomas Sabu,
Chatterjee Prabha,
Siddiqui M. A.
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19980404)68:1<53::aid-app6>3.0.co;2-m
Subject(s) - asphalt , rheology , materials science , natural rubber , ductility (earth science) , composite material , polymer , viscosity , shear viscosity , creep
Polymer modification of commercially available bitumen has been attempted by the incorporation of liquid natural rubber (LNR) of medium viscosity. Both soft and blown bitumens have been studied. Physical and rheological characteristics of the samples were investigated. Improvement in physical properties such as shear strength and ductility in the case of blown bitumen and resistance to flow in the case of soft bitumen were observed. It was also found that as a result of addition of LNR, the activation energy of flow increases in the case of soft bitumen and decreases in blown bitumen. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 68:53–61, 1998