Michel Vaillancourt

• PhD
• Professor at École de Technologie Supérieure

The full-depth reclamation with no stabilization (FDR-NS) is widely used as a pavement rehabilitation technique. It is important to evaluate the on-site characteristics of FDR-NS materials to avoid short-term underperformance. The need for performance-based testing could then be supported by in situ and non-destructive testing, such as dynamic cone...

Waste glass accounts for huge quantities throughout the world. Although some part of this waste material is recycled, a considerable part of waste glass cannot be reused and recycled due to the glass remanufacturing strict limitations. Hence, reusing waste glass in construction projects can be a cost-effective and environmentally friendly method to...

This study investigated the use of recycled glass aggregate (RG) as unbound base/subbase material. The experimental tests included compaction, Los Angeles, Micro-Deval, and California bearing ratio (CBR) tests. In this regard, a fine proportion of course limestone aggregate (MG20) was replaced by RG with size ranging from 0 to 5 mm based on the vol...

As part of the RILEM Technical Committee TC 279-WMR on valorisation of waste and secondary materials for roads, Task Group 3 used various waste aggregates as a replacement for natural aggregates in asphalt mixtures, namely, construction and demolition waste, recycled concrete aggregates and steel slag. For this interlaboratory exchange program, the...

RILEM TC-279 WMR task group TG 1 studied the performance of waste Polyethylene (PE) in bituminous binders and bituminous mixtures. Several laboratories participated in this study following a common protocol. Locally sources aggregates and bituminous binder and same source of waste PE were utilized. The binder experiments showed that at high tempera...

One of the most commonly observed distress in asphalt pavement is shrinkage cracking, which has a significant negative impact on the service life of asphalt pavement. The primary purpose of this study is to evaluate the effects of shrinkage or transverse cracking of asphalt pavement on the load transfer efficiency (LTE) by using data obtained from...

Construction and demolition waste (CDW) materials account for a considerable part of waste materials throughout the world. As these materials are not usually recycled, reusing them in construction projects is of major significance. In this study, recycled concrete, bricks, and glass were used as 100% aggregates of chip seal, which is a corrective o...

Using interlayers made of geosynthetic materials has proved its effectiveness with respect to postponing the appearance of reflective cracking on the surface. In this regard, in a reinforced bituminous interface, the crack first propagates from its origin upward until it reaches the interlayer. When the interlayer has higher stiffness than its surr...

The objective of this research is to study the impact of the use of construction, renovation and demolition (CRD) fillers on the linear viscoelastic behavior (LVE) of bituminous mastics. Forty-two (42) mastics, composed of a PG 64H-28 bitumen and 4 different contents of various types of filler, were created: concrete (Co), hydrated lime (HL), glass...

In this study, the experimental and numerical effects of using waste glass as aggregates of asphalt pavement are evaluated. The main reason for using this waste material as aggregates of hot mix asphalt (HMA) is to alleviate an environmental problem associated with asphalt pavements called urban heat islands. This phenomenon can increase the temper...

Rutting, fatigue and thermal cracking are the most prominent pavement degradation observed in Canada. The presence of cracks on the surface allows water to seep into the pavement structure and accelerate its degradation. One of the options to remove cracks is to mill a thin layer and replace it with a new layer. Unfortunately, reflective cracking r...

Heat transfer in the asphalt pavement is significant because it affects asphalt pavement performance and the surrounding environment. This importance is attributed to summertime when the pavement's surface is hot. This hot surface can cause asphalt pavement distresses such as rutting and exacerbate cities' urban heat islands (UHI). Therefore, under...

This research aims to determine if the observed improvements using polyethylene (PE) waste in asphalt binder translate into better performance at the asphalt mixture scale in the laboratory environment while overcoming the stability and homogeneity issues experienced at the binder level. This is accomplished through a round-robin multinational expe...

In this study, the experimental and numerical effects of using waste glass as aggregates of asphalt pavement are evaluated. The main reason for using this waste material as aggregates of hot mix asphalt (HMA) was to alleviate an environmental problem associated with asphalt pavements called urban heat islands (UHI). This phenomenon can increase the...

Although the mechanism of thermal cracking and the factors affecting the occurrence of this type of cracks are already well documented, the influence of this phenomenon on the structural capacity and the freezing behavior of the roadway near the cracks, as well as the consequence for the pavement of these localized effects is still poorly documente...

This paper studies the effect of recycled glass (RG) filler on the shear stiffness of mastics (mixture of bitumen and filler) in the linear viscoelastic domain (LVE). The research project was carried out at the Laboratory of Roads and Bituminous Materials (LCMB) of the École de technologie supérieure (ÉTS) using a new experimental device called the...

Rutting, fatigue and thermal cracking are the most prominent pavement degradation observed in Canada. The presence of cracks on the surface allows water to seep into the pavement structure and accelerate its degradation. One of the options to remove cracks is to mill a thin layer and replace it with a new layer. Unfortunately, reflective cracking r...

In view of increasing social and environmental consciousness, a circular approach in waste materials management in order to convert them into new secondary resources is becoming more necessary. Given this context, an interlaboratory testing program (ILTP) focusing on maximizing the use of waste aggregates replacing conventional virgin ones has been...

The mechanical evaluation in the laboratory of the impact of the reinforcement of bituminous layers deteriorated by a geosynthetic layer, in order to obtain rational inputs in the methods of dimensioning of the pavements based on the performance, represents a real challenge. This complexity has two main origins. On the one hand, the preparation of...

In this paper, the results of a research project examining the effect of glass aggregate and hydrated lime content on linear viscoelastic (LVE) properties are presented. Three glass aggregate contents (0%, 20% and 60%) and two hydrated lime contents (0%, 2%) were studied for a total of six different asphalt mixtures. All mixtures were fabricated in...

In order to study the mechanical behavior of asphalt overlay reinforced with paving fabrics (a system composed of non-woven geotextile and asphalt cement) a new methodology was developed based on three new pieces of laboratory equipment including 3-point bending test (3-PBT) method on cylindrical specimens, crack widening device (CWD) and water-vac...

The focus of this study is on thermally induced reflective cracking, which has been recognized as a prevalent issue in North America. It first initiates by excessive tensile stress from expansion, contraction or bending from horizontal movement of the layers due to significant drop or high daily fluctuation in temperature (Mode I). Then, the crack...

The use of alternative materials in the construction industry is gaining popularity, amongst other to reduce the various environmental impacts of standard construction materials. Recycled glass (RG) is used as an aggregate in pavement structures, but the widespread usage is impeded by insufficient knowledge on the geotechnical characteristics. This...

In this paper, the moisture susceptibility of different bituminous binders with two substrates (glass and limestone) was investigated. To that end, the tensile strength of different combinations of bituminous binder-substrate bond was measured using a pull-off test. This test was adapted from the PATTI test in order to improve repeatability. Sample...

Full-depth reclamation (FDR) materials are a type of cold-recycled bituminous mixes that are composed of reclaimed asphalt pavement (RAP) and virgin aggregates. FDR is often treated with a binder in order to obtain cohesion. It is common to use bitumen emulsion, foam asphalt, and cement. In many parts of the world, when bitumen emulsion or foamed a...

In recent times, recycling using cold bituminous mixtures has become one of the most interesting techniques in pavement engineering from sustainability aspect. This study focuses on the clarification of the steps concerned with the cold mixture mix design to determine the initial aggregate gradation of the mixture. The study has been developed invo...

In cold regions such as Canada, asphalt pavements are exposed to water and to numerous freeze-thaw cycles (FT). To evaluate the degradation of materials used in cold regions, we must consider two specific states: 1) high temperatures, 2) low temperatures. To do so, a methodology has been developed at Laboratoire des Chaussées et Matériaux Bitumineu...

This paper focuses on the effect of hydrated lime on the linear viscoelastic (LVE) properties of asphalt mixtures with glass aggregates subjected to conditioning: 1) 14 days in hot water and 2) repeated freeze-thaw cycles. Complex modulus test was used to evaluate LVE properties. Three glass aggregates (0 %, 20 %, 60 %) and two hydrated lime (0 %,...

With the increased knowledge of sustain-able pavement construction, recycled materials moreand more are being used in roadw ork applications,especially as base materials. Among various recycledmaterials, recycled glass aggre gate is of the specialattraction in the present study. The main goal of thisinvestigation is evaluating the behavior of base...

The study has been developed involving different sources of material, which gradation has been modified according three reference grading curves: Maximum Density curve (Fuller-Thompson), MTQ Specifications (Ministère du Transport du Québec) and HPAC curve (High Performance Asphalt Concrete). The effect conferred by the gradation type has been studi...

Evaluation of the moisture damage of HMA is normally conducted on loose aggregate coated with binder or on HMA compacted samples; both methods having their respective disadvantages. Those tests are empirical and are susceptible to give misinterpretation of moisture damage. The complex modulus test for asphalt mixtures, also known as the dynamic mod...

The increasing need to recycle more wastes and reduce the use of landfills is forcing reconsideration of potential uses of recycled glass aggregates in pavement construction. In addition, in cold region, adequate thermal design of pavement relies on a good prediction of the thermal regime in the road structure. While the mechanical and hydraulic pe...

A major research project is on going at the Laboratoire des Chaussées et Matériaux Bitumineux (LCMB) of École de Technologie Supérieure (ÉTS) regarding the use of glass aggregates in asphalt mixtures. This paper focuses on the use of glass aggregates in an ESG10 asphalt mixture used as wearing course. The objective of this study was to select the...

The evaluation of the performance of recycled asphalt mixtures is a priority for the asphalt materials community. The results of the investigation dealing with the linear viscoelastic properties and fatigue resistance on RAP mixtures are presented. Complex modulus and fatigue properties of recycled asphalt mixtures are investigated on tension-compr...

In Quebec Province, a large quantity of mixed colors glass can’t be used to make new glass products. The idea of using mixed glass in hot mix asphalt (HMA) is currently being studied at the Laboratoire des Chaussées et Matériaux Bitumineux (LCMB) of the École de Technologie Supérieure (ÉTS). In this study, two asphalt mixtures were tested: ESG14...

Controlled low strength materials (CLSM) are increasingly used in urban areas to fill the trenches that constitute the technical urban underground network. CLSM replaces compacted rock stone; it is delivered with a concrete mixer and self-compacts due to its high water content. Few quality control requirements are listed in its specifications, none...

To highlight the impact of subgrade soil variability on the pseudo-profile and roughness at the end of road construction, a research program has been carried out at the Laboratoire sur les chaussées et matériaux bitumineux at École de technologie supérieure (ÉTS). The analysis is intended to highlight the variability of materials’ characteristics a...

The ever increasing volume of waste materials, the shortage of landfill space and the limitation of natural resources motivate researchers to find innovative ways for recycling and reusing materials like waste glass. Using glass as an aggregate in the pavement structure is an innovative method of recycling, and helps to reduce landfill. However, in...

The goal of this research was to verify the possibility of using recycled glass particles in an asphalt mixture while maintaining equivalent properties and performance in lieu of a conventional mixture. First, one type of asphalt mixture (ESG14) with different glass contents was tested according to the Ministère des transports du Québec’s mix desig...

Glass recycling is problematic because the glass that breaks during the collection process can’t be used to make new glass products. The idea of using glass in asphalt mixes was recently studied at the Laboratoire des Chaussées et Matériaux Bitumineux (LCMB) of the École de Technologie Supérieure (ÉTS). The study was separated in two parts. The opt...

Glass recycling is problematic because the glass that breaks during the collection process can’t be used to make new glass products. The idea of using glass in asphalt mixes was recently studied at the Laboratoire des Chaussées et Matériaux Bitumineux (LCMB) of the École de Technologie Supérieure (ÉTS). The study was separated in two parts. The opt...

This project aims to evaluate the effects of changes in the correlation length of the rigidity of the subgrade flexible pavement roughness expressed in terms of the International Roughness Index (IRI). The correlation length, which defines the structure of the dispersion of soil rigidity, has a direct effect on the wavelength of the induced deforma...

In an attempt to apply the concepts developed by Carman and Klinkenberg for the measurement of permeability of a porous media using a gas, a permeameter for the in-situ measurement of intrinsic permeability of skin concrete has been developed. The established technique allows concentration of gas percolation through a well-defined zone in the super...

In order to get the most out data from a pseudo-profile and to further develop an international roughness index (IRI) concept, a new interpretation approach of the IRI is presented. It is based on the breakdown of the initial pseudo-profile of a pavement into elementary pseudo-profiles based on various well-defined wavelengths. The underlying hypot...

Dimensionnement des chaussées au Québec, l'avenir est dans l'exploitations des méthodes disponibles Michel Vaillancourt ing, Ph.D. Inspec-Sol Inc. Daniel Perraton ing., D. Sc. A. École de Technologie Supérieure 1.0 PLUSIEURS CHANTIERS DE CONSTRUCTION ET RÉHABILITATION D’INFRASTRUCTURES ROUTIÈRES À VENIR Le réseau routier québécois est constitué...