Estabilização granulométrica e mecânica de um solo da região norte de Mato Grosso

Abstract

The characteristics of a region's infrastructure directly influence the development and quality of life. Transport is an extremely important infrastructure service, once it allows the traffic of consumer goods from the producing areas to consumers. In Brazil, road transport is the most used, therefore the quality of roadways impacts directly on the price of products and on the satisfaction of its users. Since the construction of a highway can become expensive, the study of materials and improvement techniques for a better use of local materials or even for reduction of cost, become interesting. This work aimed to evaluate the carrying capacity of Sinop-MT, granulometrically and mechanically stabilized. For granulometric stabilization, was evaluated the incorporation of quarry tailings (stone dust) into the soil at the levels of 5%, 15% and 30%. To evaluate the mechanical stabilization, the soil and the mixtures were compacted at normal, intermediate and modified energies. Soil, tailing and mixture characterization tests were carried out, in addition to obtaining the compression parameters and their appropriate California Bearing Ratio (CBR). The results presented demonstrated the impossibility of using tailings for granulometric stabilization of the studied soil, since the incorporation of this material reduced the soil CBR up to 61.4% when compared to the natural soil in the modified energy.