Nondestructive Characterisation of the Effect of Asphalt Mixture Compaction on Aggregate Orientation and Segregation Using X-ray Computed Tomography

The orientation and distribution of aggregates in asphalt mixtures have significant influence on asphalt mixture performance. This study investigates the effect of different compaction methods on the aggregate structure. Three laboratory compaction methods; namely gyratory, vibratory and slab roller compaction are used to compact gap graded asphalt mixture specimens. All specimens are scanned using X-ray computed tomography (CT) and the characteristics of the images are analysed. Using the image analysis technique, the aggregate particles (≥ 2 mm) are separated from the mixture and the orientation and distribution in the compacted specimen are characterised. It was found that aggregates near the edge of a specimen tend to form circumferential alignment while the aggregates near the centre of the specimen are randomly oriented. Aggregate gradations show that coarse particles are mostly concentrated at the bottom compared to the top of a specimen.

並列關鍵字

Asphalt mixture ； Image analysis technique ； Image processing ； X-ray computed tomography

被引用紀錄

Huerne, H. L. T., Maarseveen, M. F. A. M. V., Molenaar, A. A. A., & Ven, M. F. C. V. D. (2014). Using Critical State Theory for Modelling of Asphalt Mix Compaction. International Journal of Pavement Research and Technology, 7(2), 83-92. https://doi.org/10.6135/ijprt.org.tw/2014.7(2).83

葉銘欽（2012）。以微觀影像解析多孔隙瀝青混凝土耐久特性之研究〔博士論文，國立中央大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0031-1903201314443183

延伸閱讀

Okayama, S., Soeda, T., Takami, Y., Kawakami, R., Somekawa, S., Uemura, S., & Saito, Y. (2012). The Influence of Effective Energy on Computed Tomography Number Depends on Tissue Characteristics in Monoenergetic Cardiac Imaging. Radiology Research and Practice, 2012(), 21-27. https://doi.org/10.1155/2012/150980
魏嘉宏、李岳、王瑋、梁楊可欣、吳右仁（2015）。The Position Detection of Calcification in Vessels on Computed Tomography Images Using the Salient Region Detection Method。健行學報，35(4)，1-15。https://www.airitilibrary.com/Article/Detail?DocID=P20121108003-201510-201511040012-201511040012-1-15
李明宗、林中魁、林鴻明、鍾清枝（2004）。Investigation and Characterization of Nanocrystalline Materials by X-ray Absorption Spectroscopy。材料科學與工程，36(2)，125-129。https://doi.org/10.6409/JMSE.200406.0125
黃姍姒、杜俊元、江蓮、楊邦宏、張建法（2021）。Comparison of Discriminant Analysis between Visual Inspection and Contrast-Noise Ratio of Low Contrast Detectability Test in Computed Tomography Quality Assurance。臺灣醫事放射期刊，9(1)，1-6。https://doi.org/10.6717/JTMRT.202107_9(1).0001
He, P., Zhou, B. W., Feng, P., & Chen, M. Y. (2014). Photonic Material Selection of Scintillation Crystals Using Monte Carlo Method for X-Ray Detection in Industrial Computed Tomography. Journal of Sensors, (2014), 594-600. https://doi.org/10.1155/2014/984716

國際替代計量

Nondestructive Characterisation of the Effect of Asphalt Mixture Compaction on Aggregate Orientation and Segregation Using X-ray Computed Tomography

全文下載

主題瀏覽