avaliaÇÃo do custo de construÇÃo de uma estrutura de pavimento empregando agregado reciclado de rcd (doi:10.5216/reec.v10i1.31557)
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2015
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Abstract
RESUMO: O uso de agregados reciclados provenientes de resíduos de construções e demolições (RCD) tem sido vistos como uma alternativa de reduzir a disposição inadequada destes materiais no meio ambiente, como também reduzir os custos de pavimentação. Neste contexto, o presente artigo tem como objetivo dimensionar, para as vias de tráfego intenso da cidade de Joinville-SC, uma estrutura de pavimento usando em sua composição misturas de solo e agregado reciclado e avaliar o seu custo de construção. Para isso, foram realizados ensaios de caracterização física do agregado reciclado e do solo. A partir daí foram dosadas duas misturas com teores diferentes de materiais e avaliado as suas respectivas resistências mecânicas. Com os resultados obtidos constatou-se que as misturas avaliadas podem ser empregadas na construção de camadas de sub-base. Verificou-se que houve uma redução de 8,8% nos custos de construção de pavimentos usando a mistura de solo-agregado reciclado. Por fim, o estudo apresenta que o uso do agregado reciclado pode ser uma alternativa econômica e tecnicamente viável para a área rodoviária, pois o dimensionamento mostrou que esse material pode ser utilizado para compor as camadas nobres de um pavimento.
ABSTRACT: The use of recycled aggregate from construction and demolition waste has been seen as an alternative to reduce the improper disposal of these materials in the environment, and also reduce the cost of pavements construction. In this context, the present paper aims to pavement designer to the urban roads of the city of Joinville-SC, a structure of pavement that in its composition is used mixtures of soil and recycled aggregate and evaluation it costs of construction. For this, were made physical characterization tests for the recycled aggregate and the soil. Thereafter two mixtures were measured with different levels of materials and analyzed their respective mechanical behaviors. With the results it was verified that mixtures may be employed only in the construction of sub-base layer. It was noted that there was a reduction in the costs of pavements construction using the mixture of soil- recycled aggregate. Finally, the study present that the use of recycled aggregate can be a cost-effective alternative and technically feasible for the road area, because the pavement designer showed that this material can be used to compose the noble layers of a pavement.
| Reference Key |
santos2015reec:avaliao
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| Authors | ;Adriana Goulart Santos;Ricardo Wiese Teixeira;Eduardo Almeida de Mello;Jaime Teixeira |
| Journal | journal of economic perspectives |
| Year | 2015 |
| DOI |
10.5216/reec.v10i1.31557
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