TITLE:
Experimental Study of the Evolution of Temperatures in Pavement Structures and Influence of Traffic on the RN1 in Burkina Faso in a Hot and Dry Climate
AUTHORS:
Paul Ilboudo, Boubacar Soro, Dieudonné Dabilgou, Boureima Kaboré, Jean Marie Compaoré, Sié Kam, Dieudonné Joseph Bathiebo
KEYWORDS:
Temperature, Pavement, Traffic, Climate, Bituminous Concrete
JOURNAL NAME:
Open Journal of Civil Engineering,
Vol.13 No.2,
June
14,
2023
ABSTRACT: Asphalt
concrete pavements in hot and dry climates deteriorate prematurely some time
after their construction. This degradation is accelerated under the effect of
heavy vehicle traffic pressure and high temperatures after the bitumen has
softened. A study was conducted on the RN1 in Burkina Faso in order to analyze
the evolution of temperature and traffic in the process of degradation of
asphalt concrete pavements. It consisted on the one hand in recording the
temperatures at different points inside the layers of asphalt concrete
pavements and the layer of laterite. These results were compared with the
values of the
softening temperatures of the bitumen obtained in the laboratory. On the other
hand, this study is supplemented by the daily counting of heavy goods vehicles
passing through the RN1 during the month of April in order to
study the influence of the evolution of heavy goods vehicle traffic on the
degradation of pavements in hot and dry climatic conditions. The results
obtained for temperatures and the frequency of heavy goods vehicle traffic
favor pavement deterioration under certain conditions.