Influence of hydrated lime on linear viscoelastic properties of bituminous mastics

The influence of hydrated lime (HL) on linear viscoelastic (LVE) behavior of mastic is investigated. One bitumen and five mastics with different HL content are investigated. The same 35/50 penetration grade bitumen was tested and used for mastics preparation. The LVE properties were obtained by mean...

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Bibliographic Details
Published in:Mechanics of time-dependent materials 2020-02, Vol.24 (1), p.25-40
Main Authors: Phan, Cong Viet, Di Benedetto, Hervé, Sauzéat, Cédric, Lesueur, Didier, Pouget, Simon
Format: Article
Language:English
Subjects:
Bitumens
Characterization and Evaluation of Materials
Civil Engineering
Classical Mechanics
Engineering
Engineering Sciences
Limestone
Polymer Sciences
Shear modulus
Solid Mechanics
Stiffening
Superposition (mathematics)
Viscoelasticity
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Summary:The influence of hydrated lime (HL) on linear viscoelastic (LVE) behavior of mastic is investigated. One bitumen and five mastics with different HL content are investigated. The same 35/50 penetration grade bitumen was tested and used for mastics preparation. The LVE properties were obtained by means of complex shear modulus tests using a dynamic shear rheometer (DSR) on a wide range of temperatures and frequencies. The time–temperature superposition principle in the LVE domain was applicable. Experimental results were modeled using the 2S2P1D model previously developed at the University of Lyon/ENTPE. The reinforcement effect of HL on LVE behavior of mastics was observed and quantified. Results show that the volume of filler increase when limestone is replaced by HL at constant mass, may explain a large part of the observed stiffening effect.
ISSN:1385-2000
1573-2738
DOI:10.1007/s11043-018-09404-x