Laboratory Evaluation of Hot Asphalt Concrete Properties with Cuban Recycled Concrete Aggregates

Debora Acosta Alvarez, Anadelys Alonso Aenlle and Antonio José Tenza-Abril
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Debora Acosta Alvarez: Faculty of Civil Engineering, Technological University of Havana “José Antonio Echeverría”, Havana 11500, Cuba
Anadelys Alonso Aenlle: Faculty of Civil Engineering, Technological University of Havana “José Antonio Echeverría”, Havana 11500, Cuba
Antonio José Tenza-Abril: Department of Civil Engineering, University of Alicante, 03080 Alicante, Spain

Sustainability, 2018, vol. 10, issue 8, 1-13

Abstract: Recycled Aggregates (RA) from construction and demolition waste (CDW) are a technically viable alternative to manufacture of asphalt concrete (AC). The main objective of this work is to evaluate the properties of hot asphalt mixtures that have been manufactured with different sources of CDW (material from concrete test specimens, material from the demolition of sidewalks and waste from prefabrication plants) from Cuba. Dense asphalt mixtures were manufactured with a maximum aggregate size of 19 mm, partially replacing (40%) the natural aggregate fraction measured between 5 mm and 10 mm with three types of RA from Cuba. Marshall specimens were manufactured to determine the main properties of the AC in terms of density, voids, stability and deformation. Additionally, the stiffness modulus of the AC was evaluated at 7 °C, 25 °C and 50 °C. The results corroborate the potential for using these sources of CDW from Cuba as a RA in asphalt concrete, thereby contributing an important environmental and economic benefit.

Keywords: recycled aggregates (RA); construction and demolition waste (CDW); hot asphalt mixtures; stiffness modulus; X-ray diffraction (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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