alexa Utilization of recycled asphalt concrete with warm mix asphalt and cost-benefit analysis.


Primary Healthcare: Open Access

Author(s): Oner J, Sengoz B

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Abstract The asphalt paving industries are faced with two major problems. These two important challenges are generated with an increase in demand for environmentally friendly paving mixtures and the problem of rapidly rising raw materials. Recycling of reclaimed asphalt pavement (RAP) is a critical necessity to save precious aggregates and reduce the use of costly bitumen. Warm Mix Asphalt (WMA) technology provides not only the option of recycling asphalt pavement at a lower temperature than the temperature maintained in hot mixtures but also encourages the utilization of RAP and therefore saves energy and money. This paper describes the feasibility of utilizing three different WMA additives (organic, chemical and water containing) at recommended contents with different percentages of RAP. The mechanical properties and cost-benefit analysis of WMA containing RAP have been performed and compared with WMA without RAP. The results indicated that, 30\%, 10\% and 20\% can be accepted as an optimum RAP addition related to organic, chemical and water containing additives respectively and organic additive with 30\% RAP content has an appreciable increase in tensile strength over the control mix. It was also concluded that the RAP with WMA technology is the ability to reduce final cost compared to HMA and WMA mixtures.
This article was published in PLoS One and referenced in Primary Healthcare: Open Access

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