The present work is developed in an investigative context, through which it is intended to evaluate the behavior and / or physical-mechanical properties of a dense hot asphalt mix modified with biosolid ash by dry means. Compliance with the scope of the investigation occurs in the first instance, through the collection of the raw material "Biosolids", in order to carry out the respective modification and design of the asphalt mix. For which the area for obtaining and supplying the material is established, the WWTP (Wastewater Treatment Plant) of Acacias, Meta. In the city of Villavicencio and its neighboring municipalities, the population and the domestic water supply have been increasing, likewise the use of said water resource is limited by the availability of the water tributaries that provide water for the population's consumption. The increase in demand has as a consequence an exponential growth in the volume of solid waste, whose discharge, without a doubt, is the nearby water tributaries that facilitate its deposition, the inappropriate disposal, evacuation and treatment of the resource damages the quality of the water which will later be treated for human consumption. That said, previously, the municipalities of the Department are obliged to create projects that involve the design and construction of new WWTPs for the treatment of wastewater; Laws that preserve and maintain the environment cannot allow organic waste to be deposited in water tributaries and to alter the molecular composition of water