Application of White-topping Technology in a Section of the Road: South Circuit - Topes De Collantes

The objective of this work is to transmit the experience acquired during the rehabilitation of the road: South Circuit - Topes de Collantes, from 9.0 to 10.5 km, in the province of Sancti Spíritus, through the use of white topping. This rural road is located in a mountainous terrain, there are large slopes and steep slopes, presenting in some sections the need for reconstruction using technologies that extend the useful life and decrease the total construction and conservation costs. The work consisted of the construction of a concrete slab made with Portland Cement P-35 on the existing deteriorated asphalt pavement. It was designed considering the elastic modulus of the old pavement and ensuring a strong bond between the two layers, to minimize the thickness of the slab, in this case executed in "alternate cloths". The application of white-topping technology has allowed extending the life of the pavement, improving the safety of road traffic and the total costs of these tasks, as it has been seen during the commissioning of the section of rehabilitated road.