Sidpouita Mathilde Koudougou
Polytechnic School of Ouagadougou
Title: Thermomechanical response of bituminous pavements to hot and dry tropical weather conditions
Biography
Biography: Sidpouita Mathilde Koudougou
Abstract
The main objective of this paper is to propose a two-dimensional (2D) model of temperature distribution and deformations of bituminous pavements under extreme climatic conditions in Burkina Faso (heat wave) using the COMSOL Multiphysics software. This model takes into account the geometry, the hourly weather conditions (solar radiation, air temperature, air humidity, dew point temperature, wind speed) as well as the temperature dependence of the mechanical parameters (modulus of elasticity, Poisson's ratio), thermo physical properties (thermal conductivity, diffusivity) of the materials. The results obtained show that it is possible to identify, for periods of the day, the existence of non-linear and permanent deformations in the surface layers of the pavements. The meteorological factor, namely temperature, was found to be very important in the choice of bitumen used for asphalt pavement construction in tropical areas.