Semirigid pavement performance constructons techniques for the semiarid areas

This article explains a field study about the service properties of semi-rigid pavements attained in a climatic area that can be considered semiarid/arid, located in the west of Spain. A semirigid pavement includes a soil-cement (SC) base (or subbase) and a stabilised subgrade. Taking as a reference the works in two motorways of recent construction such as the A-66 and A-58, the criteria are presented that favoured the choice of the semi-rigid solution for its pavement and the specific techniques used for its building as well as its performance after having been opened to the traffic for 7–8 years