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Effects of recycled concrete aggregate on stiffness and rutting resistance of asphalt concrete

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2017
Authors
Radević, Aleksandar
Đureković, Aleksandar
Zakić, Dimitrije
Mladenović, Goran
Article (Published version)
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Abstract
The objective of this research was to assess the possibility of using recycled concrete aggregate (RCA) in asphalt mixtures. The experimental research included 10 asphalt mixtures with partial natural aggregate substitution by RCA, which ranged from 15% to 45% of fine ( le c.4 mm), coarse (4/22.4 mm) and both fine and coarse aggregate. The optimum bitumen content increased with increasing RCA content. The use of RCA had no significant influence on the permanent deformation, while the stiffness modulus of asphalt mixtures with RCA was lower compared with the control mixture, especially at high frequencies. The results indicate that RCA can be successfully used in asphalt mixtures.
Keywords:
Asphalt mixture / Recycled concrete aggregate / Stiffness modulus / Permanent deformation / Optimum bitumen content
Source:
Construction and Building Materials, 2017, 136, 386-393
Publisher:
  • Elsevier Ltd
Projects:
  • Research on condition assessment and improvement methods of civil engineering structures in view of their serviceability, load-bearing capacity, cost effectiveness and maintenance (RS-36048)
  • Utilization of by-products and recycled waste materials in concrete composites in the scope of sustainable construction development in Serbia: investigation and environmental assessment of possible applications (RS-36017)

DOI: 10.1016/j.conbuildmat.2017.01.043

ISSN: 0950-0618

WoS: 000395967300037

Scopus: 2-s2.0-85010369464
[ Google Scholar ]
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URI
http://grafar.grf.bg.ac.rs/handle/123456789/845
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  • Radovi istraživača / Researcher's publications
  • Катедра за материјале и конструкције
  • Катедра за путеве, аеродроме и железнице
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