Comportamento de misturas em concreto asfáltico tendo lodo da eta da Cidade de Manaus como Fíller.

Abstract

This paper has the objective of generating alternatives for the local paving, with the utilization of regional and non-conventional material in the asphaltic mixture, replacing the traditional elements. In order to do so, the sludge, which is a residue generated in the Estação de Tratamento de Água-ETA (Water Treatment Station WTS), at Ismael s Creek (Ponta do Isamel), in Manaus City, the responsible for the water treatment from the Negro River, which provides water for Manaus City. Nowadays, these residues are casted in the Franco s Igarapé (Franco s River), entailing losses to the environment. The ETA residue was utilized as a filler in the heated-machined asphaltic concrete CBUQ, replacing the region s traditionally used material, the Portland cement. A comparative analysis between the bituminous, conventional and alternative mixtures was made, with the two kinds of fillets, utilizing the same tenor of CAP-50/70. CBUQ bodies were molded and analyzed the results concerning the Marshall stability, flow at 60 0C static uniaxial and diametral compression, resilient modulus and fatigue life of all at 25 0C. The test results show adequate performance of the mixture made with mud as fillers, compared to the conventional mix, made with Portland cement.