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Article

Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction

1
Faculty of Civil Engineering, Technological University of Havana, Havana 11500, Cuba
2
Department of Civil Engineering, University of Alicante, 03080 Alicante, Spain
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(13), 5356; https://doi.org/10.3390/su12135356
Received: 28 May 2020 / Revised: 27 June 2020 / Accepted: 30 June 2020 / Published: 2 July 2020
(This article belongs to the Special Issue Sustainable Construction and Building Materials for Environment)
In Cuba, tons of construction and demolition waste (CDW) are generated during urban construction and reconstruction activities every year. The use of CDW, such as recycled concrete aggregates (RCA) and reclaimed asphalt pavement (RAP), in pavement construction is a viable solution to preserve the consumption of natural aggregates (NA), and to minimize the impact of landfill. The main objective of this work is to obtain a 5–10 mm aggregate fraction of RCA and RAP, to obtain an appropriate recycled coarse aggregate for manufacturing hot mix asphalt (HMA). Each source of RCA, RAP and NA, and the combinations RCA/RAP (0/100, 25/75, 50/50, 75/25 and 100/0) were characterized (moisture, asphalt content of RAP, specific gravity, water absorption, and flakiness index) for determining a better combination. The results showed that the combination (RCA/RAP) that best meets the NA aggregates specifications used for hot mix asphalt were RCA/RAP: 25/75 and 50/50. The results show the possibility of combining both wastes to obtain a coarse aggregate fraction with a high environmental benefit, by reducing the use of natural resources. View Full-Text
Keywords: recycled concrete aggregates; reclaimed asphalt pavement; bonded mortar; recycled materials; asphalt mixture; circular economy recycled concrete aggregates; reclaimed asphalt pavement; bonded mortar; recycled materials; asphalt mixture; circular economy
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MDPI and ACS Style

Morales Fournier, J.; Acosta Álvarez, D.; Alonso Aenlle, A.; Tenza-Abril, A.J.; Ivorra, S. Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction. Sustainability 2020, 12, 5356. https://doi.org/10.3390/su12135356

AMA Style

Morales Fournier J, Acosta Álvarez D, Alonso Aenlle A, Tenza-Abril AJ, Ivorra S. Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction. Sustainability. 2020; 12(13):5356. https://doi.org/10.3390/su12135356

Chicago/Turabian Style

Morales Fournier, Jessika, Debora Acosta Álvarez, Anadelys Alonso Aenlle, Antonio J. Tenza-Abril, and Salvador Ivorra. 2020. "Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction" Sustainability 12, no. 13: 5356. https://doi.org/10.3390/su12135356

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