B diseño del hormigón asfáltico con materiales provenientes de la planta asfáltica de la Municipalidad de Machala utilizando el método Marshall b

Abstract

The purpose of this practical work is to design the Asphalt Concrete with materiasl from the Asphalt Plant of the Municipality of Machala, using the Marshall Method. For the desing, the characteristics of coarse and fine aggregates were determined, as well as asphalt cement through tests carried out in the Pavement Laboratory of the School of Civil Engineering. With the characteristics of the aggregates, a procedure is carried out to carry out the remaining dosage as follows 40 of 3 4 agregate, 30 of 3 8 aggregate and 30 fine aggregate sand thus fulfilling each of the technical specifications of the Asphalt Institute. The consistency test of asphalt cement determines its degree of consistency of 85-100. The asphalt mixture was prepared with asphalt cement percentages from 5 to 8 with an increase of 0.5; in order to determine the optimal percentage of asphalt that requires a rolling binder to support the requested traffic loads. The results obtained in the Marshall test, determine the optimum percentage of the Asphalt Cement, being this 6.7 with a Stability of 3800 Lb, value that is within the mínimum range of 1000 Lb, a Flow of 13.3 100 in, a value that is found in the range of 8 100 to 16 100 in, voids in mineral aggregates equal to 14.4 , with a mínimum of 14 and 4.9 of voids with air, a value that must be between 3 and 5 .