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Ingeniare. Revista chilena de ingeniería

versão On-line ISSN 0718-3305

Resumo

RONDON QUINTANA, Hugo Alexander; REYES LIZCANO, Fredy Alberto  e  URAZAN BONELLS, Carlos Felipe. Effect of reducing traffic speed on the durability of a road asphalt layer. Ingeniare. Rev. chil. ing. [online]. 2013, vol.21, n.1, pp.139-146. ISSN 0718-3305.  http://dx.doi.org/10.4067/S0718-33052013000100012.

Due to increased congestion on its main routes, the cities of Latin American, have been experiencing a reduction in traffic speed. This article presents the results of research conducted to establish the changes of the mechanical properties under repeated loads that occur in a MDC-2 hot mix asphalt (HMA) when the vehicular speed decreases. The studies were carried out using asphalt mixtures produced in the city of Bogotá, Colombia. As a general conclusion, it has been found that by reducing the speed of traffic, the asphalt concrete mixture reduces its stiffness and resistance to fatigue. For example, a reduction of the speed from 60 km/h to 30 km/h results in a reduction of approximately 15.6% in the stiffness of the asphalt mixture and 39.5% in its fatigue life.

Palavras-chave : Resilient modulus; fatigue resistance; dense hot mix asphalt; urban mobility; traffic speed in urban areas.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )

 

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