Stress growth coefficient in polymer modified asphalt

Title: Stress growth coefficient in polymer modified asphalt
Author(s): C. Wekumbura, J. Stastna, L. Zanzotto
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 38
Issue: 282
Issue date: 2005-10-01
Publication year: 2005
Pages: 755 - 760
Total Pages: 6
Nb references: 22
Language: English

Abstract: Startup flow of asphalt modified by styrene-butadiene-styrene and ethylene-vinyl acetate copolymer is studied at temperature T=60°C.
It is shown that the base asphalt and blends with a low content of polymer (2% by weight) behave as linear viscoelastic materials.
With increasing concentrations of polymer, the behaviour of the studied blends is nonlinear and can be described by the generalized rubber-like constitutive equation with separable memory function.
The startup flow test seems to be ideal for the characterization of polymer modified asphalts in large deformation.

Online publication: 2005-02-15
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14231