Keywords: Rigid pavement; Flexible pavement; Pavement types; Concrete road; Asphalt road; Life cycle cost


Roads have become an essential measure and symbol of the development of societies. Road
construction projects are essential infrastructure facilities for any countries, and high amounts of the
budget allocated every financial year by decision-maker. The construction of road required researches,
good plan and design, and excellent builders to discover innovatively and cost-effective engineered
products to satisfy the increasing request that would economize the construction as well as increasing
durability. Despite the economic factor, this study will present a comparative review on the suitability of
using rigid and flexible pavements in road depending on traffic, climate, foundation, life cost, materials,
maintainability and safety consideration. The reviewed studies show that the design of concrete pavement
is based on flexural strength whereas in the asphalt pavement is based on load distributing characteristics
of the component layers. The concrete pavement life is slightly longer than asphalt pavement. The initial
cost of the flexible pavement less than the cost of rigid pavement but conversely, the cost of flexible
pavement is more than the rigid pavement with the long run because of the incurring costs of maintenance.
The rigid pavement has better ability and durability to hold a shape against traffic and difficult
environmental conditions than flexible pavement.


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How to Cite
TAHER, S. A., ALYOUSIFY, S., & HASSAN, H. J. A. (2021). COMPARATIVE STUDY OF USING FLEXIBLE AND RIGID PAVEMENTS FOR ROADS: A REVIEW STUDY. Journal of Duhok University, 23(2), 222-234. Retrieved from