Miguel Angel del Val Melus
Catedrático de Universidad
ETS of Civil Engineering, Channels and Ports
Polytechnic University of Madrid

ABSTRACT

an analysis of state regulation of road pavements, which was last updated in December 2003 appeared presented in this article. This analysis focuses on the base layers, which form the structural core of the firm. graded aggregates, soil cement, gravacemento, lean concrete and asphalt mixes: In addition to general design considerations, others on the characteristics of the different usable materials are included.

KEYWORDS
Firm, sizing, standard, base layer, sub-base layer