- 期刊
Case Study: Dynamic Modulus Characterization of Naturally Occurring Bituminous Sands for Sustainable Pavement Applications
並列摘要
Oil sand is a generic name given to naturally occurring deposits of bituminous sand materials that are mined for crude oil production. These materials are currently used as subgrade materials of temporary and permanent roads in oil sand fields. The presence of high bitumen content makes oil sand materials problematic for field operations of off-road haul trucks and shovels during the warm spring and summer months. The behavior of oil sand materials is primarily dependent upon stress states, temperature, and the rate of loading or frequency. To effectively account for temperature and loading frequency, dynamic modulus is the preferred material property to characterize bituminous materials. In this paper, dynamic modulus is determined for three types of oil sand materials with natural bitumen contents of 8.5, 13.3, and 14.5% by weight using cyclic load triaxial test procedure. All the three oil sand samples were compacted close-to-field densities and then tested at two temperatures and three loading frequencies (related to field trafficking speeds) at different stress states. Based on the test results, dynamic modulus was modeled as a power function of the applied stress states and temperature. Using all the test data obtained from the three oil sand samples, unified dynamic modulus characterization models were successfully developed to account for stress state, bitumen content, and temperature. The proposed model can be calibrated for field practical use to estimate modulus and deformation behavior of these oil sand materials for their sustainable use in pavement applications.
延伸閱讀
- Colbert, B. W., Diab, A., & You, Z. P. (2013). Using M-E PDG to Study the Effectiveness of Electronic Waste Materials Modification on Asphalt Pavements Design Thickness. International Journal of Pavement Research and Technology, 6(4), 319-326. https://doi.org/10.6135/ijprt.org.tw/2013.6(4).319
- Jersey, S. R., & Bell, H. P. (2011). Analyses of Structural Capacity of Rigid Airfield Pavement Using Portable Seismic Technology. International Journal of Pavement Research and Technology, 4(3), 147-153. https://doi.org/10.6135/ijprt.org.tw/2011.4(3).147
- Hyodo, T., Wu, Y., Hyodo, M., Kikuchi, Y., & Tsukamoto, Y. (2017). Evaluation of Shear Modulus of Sand-Clay Mixtures with Various Fines Content. In 中華民國大地工程學會 & Ainosco Press (Eds.), Geotechnical hazard mitigations: experiment, theory and practice—proceedings of the 5th international conference on geotechnical engineering for disaster mitigation and rehabilitation (pp. 207-214). 中華民國大地工程學會; Ainosco Press. https://doi.org/10.6140/9789864371419.201710.0017
- 江佳良（2012）。Simulation Study of Water Purification on Pavement Engineering by Applying Pervious Concrete〔碩士論文，朝陽科技大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0078-1511201214172409
- Xiong, R., Wang, L., Guan, B. W., Sheng, Y. P., & Yang, X. K. (2015). Durability Prediction of Asphalt Mixture Exposed to Sulfate and Dry-wet Circle Erosion Environment. International Journal of Pavement Research and Technology, 8(1), 53-57. https://doi.org/10.6135/ijprt.org.tw/2015.8(1).53