6533b86efe1ef96bd12cbe50
RESEARCH PRODUCT
Reclaimed asphalt test specimen preparation assisted by image analysis
Norhidayah Abdul HassanD. Lo PrestiGordon AireyRawid Khansubject
X-ray computed tomography (CT)Materials scienceBuilding and ConstructionStrength of materialsCoringImage analysisHomogeneousAsphaltMechanics of MaterialsHomogeneity (physics)General Materials ScienceGeotechnical engineeringTrimmingSpecimen preparationImage analysiRe-RoadMaterials Science (all)Composite materialGyratory compactorStone mastic asphaltReclaimed asphaltCivil and Structural Engineeringdescription
This paper presents a laboratory investigation aimed at establishing a protocol for the production of homogeneous asphalt mixtures test specimens, incorporating reclaimed asphalt by using a gyratory compactor with coring and trimming works. Stone mastic asphalt specimens were compacted at the previously identified target densities with the final aim of obtaining specimens with a fixed and homogeneous air void distribution. A microstructural study was conducted to characterize the homogeneity in the air void distribution using X-ray computed tomography (CT) combined with image analysis techniques. The study concluded that the gyratory compactor is suitable for producing homogeneous test specimens for the specified mixtures and a set of detailed procedures has been proposed for the production of the compacted specimens and to perform the microstructural study.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-08-31 |