A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Linear Viscoelastic Behaviour and Anisotropy of Bituminous Mixture Compacted with a French Wheel Compactor
Bituminous mixture is generally considered as isotropic. Nevertheless, its compaction on roads or in laboratory induces anisotropic properties. Anisotropic properties of bituminous mixtures compacted with a French LPC wheel compactor are highlighted in this paper, in the linear viscoelastic domain. Tension-compression complex modulus tests have been performed on parallelepipedic specimens in two directions, i) direction of compactor wheel movement (direction I) and ii) direction of compaction (direction II). These tests consist in measuring sinusoidal axial and lateral strains as well as sinusoidal axial stress, when sinusoidal axial loading is applied on the specimen. Two parameters are investigated, loading frequency and temperature. Two complex moduli, EI* and EII*, and four Poisson's ratios, νII I*, νIII I*, νI II* and νIII II*, can be obtained. The vertical direction appears softer than the other one for the highest frequencies. There are few differences between the two directions I and II for parameters concerning viscous effects (phases angles φ(EI) and φ(EII), and shift factors). The four Poisson's ratios reveal anisotropic properties. In addition modeling using anisotropic version of the "2S2P1D" model developed in our laboratory at ENTPE fits well the data.
Linear Viscoelastic Behaviour and Anisotropy of Bituminous Mixture Compacted with a French Wheel Compactor
Bituminous mixture is generally considered as isotropic. Nevertheless, its compaction on roads or in laboratory induces anisotropic properties. Anisotropic properties of bituminous mixtures compacted with a French LPC wheel compactor are highlighted in this paper, in the linear viscoelastic domain. Tension-compression complex modulus tests have been performed on parallelepipedic specimens in two directions, i) direction of compactor wheel movement (direction I) and ii) direction of compaction (direction II). These tests consist in measuring sinusoidal axial and lateral strains as well as sinusoidal axial stress, when sinusoidal axial loading is applied on the specimen. Two parameters are investigated, loading frequency and temperature. Two complex moduli, EI* and EII*, and four Poisson's ratios, νII I*, νIII I*, νI II* and νIII II*, can be obtained. The vertical direction appears softer than the other one for the highest frequencies. There are few differences between the two directions I and II for parameters concerning viscous effects (phases angles φ(EI) and φ(EII), and shift factors). The four Poisson's ratios reveal anisotropic properties. In addition modeling using anisotropic version of the "2S2P1D" model developed in our laboratory at ENTPE fits well the data.
Linear Viscoelastic Behaviour and Anisotropy of Bituminous Mixture Compacted with a French Wheel Compactor
Clec'h, Pauline (author) / Sauzéat, Cédric (author) / Di Benedetto, Hervé (author)
GeoShanghai International Conference 2010 ; 2010 ; Shanghai, China
Paving Materials and Pavement Analysis ; 103-115
2010-05-14
Conference paper
Electronic Resource
English
| British Library Conference Proceedings | 2010
Linear and nonlinear viscoelastic behaviour of bituminous mixtures
| Online Contents | 2015
Linear and nonlinear viscoelastic behaviour of bituminous mixtures
| British Library Online Contents | 2015