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Cold recycling with foamed bitumen can be used as a sustainable and cost-effective rehabilitation technique. This paper focuses on the evaluation of the resistance to the water action in mixtures with reclaimed asphalt pavement (RAP) and foamed bitumen by means of indirect tensile test, comparing the effect of two active fillers: cement and hydrated lime. Additionally, mixtures recycled with RAP and asphalt emulsions were also tested in order to compare the response of both technologies. Results confirm the beneficial effect of lime and cement addition to increase the strength of mixtures subjected to wet condition. However, there is no clear trend observed in the results of the mixtures with foamed bitumen and additives with the aim of defining the optimum cement and lime content.
CitationNosetti, R., Perez, F., Martinez, A., Miro, R. Effect of hydrated lime and cement on moisture damage of recycled mixtures with foamed bitumen and emulsion. A: Transportation Research Board Annual Meeting. "Proceedings of the TRB 95th Annual Meeting". Washington D.C.: 2016, p. 1-13.
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