USO DA BORRACHA DE PNEUS INSERVÍVEIS COMO ADIÇÃO NO ASFALTO PARA MANUTENÇÃO DE ESTRADAS
Keywords:
Ensaios, Misturas asfálticas, BorrachaAbstract
O objetivo deste trabalho foi caracterizar o comportamento estrutural e mecânico das misturas asfálticas empregadas na manutenção das vias pavimentadas com a incorporação de borracha reciclada de pneus usados. A metodologia empregada resultou em significativa melhoria do desempenho estrutural da mistura asfáltica com borracha quando comparada com uma mistura de referência (sem borracha). Observaram-se as alterações no desempenho das misturas variando-se as quantidades de cimento asfáltico e borracha para uma mesma composição granulométrica de agregados. As misturas foram avaliadas com base no Método Marshall e resistência à tração por compressão diametral. Encontrando o traço adequado para que se tenha uma economia de ligantes e um aproveitamento considerado da borracha extraída de pneus inservíveis, que na sua maioria acabam poluindo o meio ambiente. Todos os resultados dos ensaios são apresentados.
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