Enhancing intermediate temperature fracture resistance of stone matrix asphalt with untreated recycled concrete aggregate - Experimental dataset

Lee P. Leon*, Jovanca Smith, Hector Martin

*Corresponding author for this work

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Abstract

This data article presents details on the assessment of fracture parameters of laboratory asphalt mixtures produced using both natural and recycled concrete aggregates. The gap-graded stone matrix asphalt (SMA) is created by incorporating Trinidad Lake Asphalt (TLA) binder with carefully calibrated mixtures of recycled concrete aggregates (0, 10, 35, and 50 per cent) and natural aggregates (limestone and dust filler). The dataset variables were chosen based on the specifications of the single-edge notched beam (SENB) and semi-circular bending (SCB) tests, which are currently used for quality control and assurance (QC & QA) assessment of asphalt concrete mixtures. The data parameters provided include air void content, voids in mineral aggregates, voids filled with asphalt, density, Marshall Stability, Flow, test temperature, peak loads, RCA content, and notch depths. The fracture resistance of the mixes was studied by analysing the fracture energy, tensile strength, and fracture toughness for the collected dataset. The data shows that incorporating up to 10% of RCA into SMA mixes, similar fracture properties can be achieved compared to traditional SMA mixtures. This presents a sustainable and environmentally advantageous option, however, it is important to exercise caution as the RCA content increases.
Original languageEnglish
Article number110744
Number of pages1
JournalData in Brief
Volume55
Early online date14 Jul 2024
DOIs
Publication statusPublished - 01 Aug 2024

Keywords

  • Asphalt Concrete
  • Fracture Resistance
  • Pavement Materials
  • Recycled Concrete Aggregate
  • Stone Matrix Asphalt
  • Sustainability

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