Time behaviour to water action of asphalt mixtures made with bituminous sand

Abstract

Given that nowadays in our country bitumen is only imported, for efficient use of this material, bituminous sands can be incorporated into the mix in order to produce asphalt mixtures. These types of sands represent a particularly advantageous solution, mainly at the local level, due to the percentage of natural bitumen in their mineral phase, through their use resulting in significant hard paving grade bitumen savings. The purpose of this paper is to emphasize the behavior in time of asphalt mixtures made with bituminous sand according to the CD 42-85 standard for the direct use of bituminous sands with and without adding hard paving grade bitumen for the execution of hot mix bituminous road pavements.