Performance evaluation of recycled asphalt mixtures by construction and demolition waste materials

•Performance of mixes containing various C&D waste materials contents was investigated.•Mixes containing C&D waste materials satisfy Marshall mix design specifications.•30% Substitution of virgin aggregates with C&D materials resulted in the most rutting resistance.•There is improvement...

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Veröffentlicht in:Construction & building materials 2016-09, Vol.120, p.450-456
Hauptverfasser: Fatemi, Saeed, Imaninasab, Reza
Format: Artikel
Sprache:eng
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Zusammenfassung:•Performance of mixes containing various C&D waste materials contents was investigated.•Mixes containing C&D waste materials satisfy Marshall mix design specifications.•30% Substitution of virgin aggregates with C&D materials resulted in the most rutting resistance.•There is improvement in moisture susceptibility with C&D waste materials increase. In recent years, Construction and Demolition waste materials (C&D waste materials) have become one of the main environmental and economical concerns to be managed. Using them as aggregate in pavement layers is considered a solution to reduce accumulated building debris in land-fills. In this research, after determining Optimal Binder Content (O.B.C.) of control mixture and those containing 10%, 20%, 30%, and 40% C&D materials, rutting performance of them were evaluated using indirect tensile resilient modulus test, Dynamic Creep test, and Wheel Tracking test. Furthermore, moisture susceptibility were investigated using wet/dry Indirect Tensile Strength (ITS). Using C&D waste materials increases O.B.C. and results of performance tests shows that recycled aggregates improve rutting resistance among which 30% is the most. Moisture damage resistance is also enhanced with C&D waste materials increase.
ISSN:0950-0618
1879-0526
DOI:10.1016/j.conbuildmat.2016.05.117