Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction
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 co...
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doaj-13765e1d8c7942f489ef85892bac53972020-11-25T02:51:20ZengMDPI AGSustainability2071-10502020-07-01125356535610.3390/su12135356Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate FractionJessika Morales Fournier0Debora Acosta Álvarez1Anadelys Alonso Aenlle2Antonio José Tenza-Abril3Salvador Ivorra4Faculty of Civil Engineering, Technological University of Havana, 11500 Havana, CubaFaculty of Civil Engineering, Technological University of Havana, 11500 Havana, CubaFaculty of Civil Engineering, Technological University of Havana, 11500 Havana, CubaDepartment of Civil Engineering, University of Alicante, 03080 Alicante, SpainDepartment of Civil Engineering, University of Alicante, 03080 Alicante, SpainIn 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.https://www.mdpi.com/2071-1050/12/13/5356recycled concrete aggregatesreclaimed asphalt pavementbonded mortarrecycled materialsasphalt mixturecircular economy |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jessika Morales Fournier Debora Acosta Álvarez Anadelys Alonso Aenlle Antonio José Tenza-Abril Salvador Ivorra |
spellingShingle |
Jessika Morales Fournier Debora Acosta Álvarez Anadelys Alonso Aenlle Antonio José Tenza-Abril Salvador Ivorra Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction Sustainability recycled concrete aggregates reclaimed asphalt pavement bonded mortar recycled materials asphalt mixture circular economy |
author_facet |
Jessika Morales Fournier Debora Acosta Álvarez Anadelys Alonso Aenlle Antonio José Tenza-Abril Salvador Ivorra |
author_sort |
Jessika Morales Fournier |
title |
Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction |
title_short |
Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction |
title_full |
Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction |
title_fullStr |
Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction |
title_full_unstemmed |
Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction |
title_sort |
combining reclaimed asphalt pavement (rap) and recycled concrete aggregate (rca) from cuba to obtain a coarse aggregate fraction |
publisher |
MDPI AG |
series |
Sustainability |
issn |
2071-1050 |
publishDate |
2020-07-01 |
description |
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. |
topic |
recycled concrete aggregates reclaimed asphalt pavement bonded mortar recycled materials asphalt mixture circular economy |
url |
https://www.mdpi.com/2071-1050/12/13/5356 |
work_keys_str_mv |
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