Combining Reclaimed Asphalt Pavement (RAP) and Recycled Concrete Aggregate (RCA) from Cuba to Obtain a Coarse Aggregate Fraction
| Autor: | Debora Acosta Alvarez, Anadelys Alonso Aenlle, Antonio José Tenza-Abril, Salvador Ivorra, Jessika Morales Fournier |
|---|---|
| Přispěvatelé: | Universidad de Alicante. Departamento de Ingeniería Civil, Tecnología de Materiales y Territorio (TECMATER), Grupo de Ensayo, Simulación y Modelización de Estructuras (GRESMES) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
asphalt mixture
Absorption of water Circular economy Geography Planning and Development 0211 other engineering and technologies TJ807-830 Fraction (chemistry) 02 engineering and technology Management Monitoring Policy and Law TD194-195 Reclaimed asphalt pavement Renewable energy sources Mecánica de los Medios Continuos y Teoría de Estructuras Asphalt pavement recycled materials 021105 building & construction reclaimed asphalt pavement GE1-350 Bonded mortar bonded mortar Ingeniería de la Construcción Aggregate (composite) Environmental effects of industries and plants Moisture Waste management Renewable Energy Sustainability and the Environment circular economy 021001 nanoscience & nanotechnology Environmental sciences Asphalt mixture Recycled materials Demolition waste Asphalt Recycled concrete aggregates recycled concrete aggregates Environmental science 0210 nano-technology Specific gravity |
| Zdroj: | RUA. Repositorio Institucional de la Universidad de Alicante Universidad de Alicante (UA) Sustainability Volume 12 Issue 13 Sustainability, Vol 12, Iss 5356, p 5356 (2020) |
| Popis: | 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&ndash 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. |
| Databáze: | OpenAIRE |
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