Nowadays environmental sustainability is one of the main issues which developed countries have to deal with. The aim of this study was to evaluate the possibility of adding crumb rubber coming from reclaimed tires as a dry ingredient in cold micro-surfacing mixes. In fact, these innovative cold bituminous mixtures could allow the recycling of waste tires and reduce tire/road noise. In this paper, the mechanical performance of cold microsurfacing mixes prepared with crumb rubber added in different dosages and sizes was investigated in the laboratory by means of the cohesion test, the modified British wheel tracking test and an innovative test method, expressly designed for thin cold mixes. Moreover, a cold micro-surfacing with the dry addition of crumb rubber was also laid down on a very busy urban road. Acoustic and skid measurements were carried out both in situ and in the laboratory in order to evaluate the functional properties of this new road material.

Experimental study on cold micro-surfacing with crumb rubber

CANESTRARI, FRANCESCO;PASQUINI, EMILIANO;FERROTTI, Gilda;
2009

Abstract

Nowadays environmental sustainability is one of the main issues which developed countries have to deal with. The aim of this study was to evaluate the possibility of adding crumb rubber coming from reclaimed tires as a dry ingredient in cold micro-surfacing mixes. In fact, these innovative cold bituminous mixtures could allow the recycling of waste tires and reduce tire/road noise. In this paper, the mechanical performance of cold microsurfacing mixes prepared with crumb rubber added in different dosages and sizes was investigated in the laboratory by means of the cohesion test, the modified British wheel tracking test and an innovative test method, expressly designed for thin cold mixes. Moreover, a cold micro-surfacing with the dry addition of crumb rubber was also laid down on a very busy urban road. Acoustic and skid measurements were carried out both in situ and in the laboratory in order to evaluate the functional properties of this new road material.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11566/42345
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