Jean-Claude Carret

École de Technologie Supérieure · Département de génie de la construction

The use of cold recycled asphalt mixtures (CRM) has been soaring during recent years. Reclaimed Asphalt Pavement (RAP) is the main component of CRM, and despite the numerous studies on CRM, the impact of different RAP types has not been deeply studied. This study compares the volumetric and several mechanical properties of CRM prepared with RAP fro...

Impregnated geotextiles are commonly used in road construction or rehabilitation to minimize water infiltration into the pavement structure. However, the effects of such waterproofing membranes on the mechanical behavior of the pavement structure are difficult to predict. In this paper, Falling Weight Deflectometer (FWD) measurements were used to h...

In this paper, the effects of pre-cracking on the early-age mechanical properties of a cement-treated base material (CTBM) were studied. To do so, CTBM with 4% cement by mass of dry granular material were mixed in laboratory in order to make cylindrical specimens. Half of the specimens were pre-cracked (PC) with a mechanical impact hammer after a t...

Modal analysis is an economic and repeatable test method to characterize the complex modulus of asphalt concrete specimens. The method have shown good agreement to conventional tension-compression cyclic loading and to non-destructive in-situ stiffness measurements of pavements. The testing is performed by applying impacts to a specimen using a sma...

In the small strain domain, asphalt mixes (AM) have a linear viscoelastic (LVE) behavior that is strongly dependent on frequency and temperature. The maximum ratio of modulus values can be up to 1000, and traditional elastic analyses are not pertinent. The possibility to characterize AM from frequency response functions (FRFs) was studied. A new op...

Modal analysis is an economic and efficient test method to characterise the complex modulus of asphalt concrete. In this paper, the precision of modal analysis was evaluated by performing testing at several laboratories on two cylindrical asphalt concrete specimens. In addition, the complex moduli characterised by modal analysis were compared to cy...

In the presented research, conventional cyclic tension–compression complex modulus tests and dynamic tests were performed on an asphalt mix (AM) specimen. For the tension–compression tests, the complex modulus was calculated from the measurements of the axial strain and axial stress. For the dynamic tests, an automated impact hammer equipped with a...

In the presented research, conventional cyclic tension–compression tests and dynamic tests were performed on two types of asphalt mixes (AM). For the tension–compression tests, the complex modulus was obtained from the measurements of the axial stress and axial strain. For the dynamic tests, an automated impact hammer equipped with a load cell and...

In this paper, an investigation was performed to determine the accuracy of a simplified viscoelastic back analysis to interpret dynamic loading tests on asphalt mixes (AM). First, quasi-static cyclic tension–compression lab tests were performed on different AM to fit the 3 dimensional 2S2P1D linear viscoelastic (LVE) model. Considering these tests...

In this paper, an investigation was performed to determine if the complex modulus obtained from frequency sweeps performed with the dynamic shear rheometer (DSR) can be used to accurately predict the creep compliance obtained experimentally using the bending beam rheometer (BBR). Two sets of asphalt binders were tested at low, intermediate, and hig...