Avaliação da relação entre macrotextura e drenabilidade em duas pistas de pouso na região do Vale do Araguaia

Abstract

In the last years brazilian air transportation have increased, and as result concern about aeroplanes accidents has increased either. In this context skid resistance is an property that allows evaluate airport pavements safety conditions, and that can be measure and express by surface texture conditions. Surface texture condition helps in braking process and consequently in aeroplanes landing. Connected with texture, surface drainage capability is a important parameter of safety conditions too, because it is associated with aquaplaning phenomenon occurence risk. In this work were done sand patch and outflow meter tests, that allowed evaluate texture parameters and surface drainage capability of two Araguaia valley region airstrips, comparing obtained results with specific standards. Based on the data collected, it was possible to verify that the two airstrips satisfy the minimum limit required by ANAC and DNIT concerning macrotexture conditions. Through the results obtained with outflow meter test was noted that the draining capacity of the airstrip at Aragarças-GO is greater than Barra do Garças-MT's one. Correlating data obtained with the two tests realisation in both airstrips was obtained a satisfactory relationship with regard to explanatory power.