Predicting California Bearing Ratio (CBR) Value of a Selected Subgrade Material
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Description
The subgrade bearing capacity is an important parameter in flexible pavement design, and it is largely influenced by the variation of subgrade moisture. California Bearing Ratio (CBR) is the most popular method of assessing the subgrade bearing capacity. It compares the load required to make a particular penetration on a given subgrade with the load to make the same penetration on standard material. Although it would be beneficial to perform CBR tests at more frequent intervals on a road section to design, it would not be practical in certain instances owing to the laborious and time-consuming CBR test process. In that case, developing a method to predict the subgrade CBR based on the variation of moisture would be an advantage. Accordingly, this study aims to assess the influence of moisture content and the compacted density on the subgrade CBR value. Hence, the possibility of developing a model to predict subgrade CBR was investigated. A series of standard CBR tests were performed for different combinations of moisture and compaction densities, and standard CBR values were estimated. Thereafter, a statistical model was developed to predict the CBR value for the selected clay material and validated with laboratory test results.
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| ID Code: | 226919 | ||||
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| Item Type: | Chapter in Book, Report or Conference volume (Conference contribution) | ||||
| Series Name: | Lecture Notes in Civil Engineering | ||||
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| Additional Information: | Funding Information: This research work is part of a research project (Project No. IH18.06.1) sponsored by the SPARC Hub at Department of Civil Eng, Monash University funded by the Australian Research Council (ARC) Industrial Transformation Research Hub (ITRH) Scheme (Project ID: IH180100010). The financial and in-kind support from Department of Transport and Main Roads (Queensland), Logan City Council, Global Synthetics (Australia), Polyfabrics (Australia) and Queensland University of Technology (QUT) is gratefully acknowledged. Also, the financial support from ARC is highly acknowledged. | ||||
| Measurements or Duration: | 12 pages | ||||
| Keywords: | California Bearing Ratio, Pavement Engineering, Pavement materials, Subgrade, Subgrade moisture, Unsaturated soils | ||||
| DOI: | 10.1007/978-3-030-87379-0_41 | ||||
| ISBN: | 978-3-030-87378-3 | ||||
| Pure ID: | 101822344 | ||||
| Divisions: | Current > Research Centres > Centre for a Waste Free World Current > Research Centres > Centre for the Environment Current > QUT Faculties and Divisions > Faculty of Science Current > QUT Faculties and Divisions > Faculty of Engineering Current > Schools > School of Civil & Environmental Engineering |
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| Funding Information: | This research work is part of a research project (Project No. IH18.06.1) sponsored by the SPARC Hub at Department of Civil Eng, Monash University funded by the Australian Research Council (ARC) Industrial Transformation Research Hub (ITRH) Scheme (Project ID: IH180100010). The financial and in-kind support from Department of Transport and Main Roads (Queensland), Logan City Council, Global Synthetics (Australia), Polyfabrics (Australia) and Queensland University of Technology (QUT) is gratefully acknowledged. Also, the financial support from ARC is highly acknowledged. | ||||
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| Copyright Owner: | The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG | ||||
| Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||
| Deposited On: | 08 Dec 2021 23:47 | ||||
| Last Modified: | 04 Apr 2024 13:06 |
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