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Home List of Titles Geotechnical properties of waste excavation rock in pavement sub-base applications
Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/208263
- Geotechnical properties of waste excavation rock in pavement sub-base applications
- Arulrajah, Arul; Ali, M. M. Y.; Piratheepan, J.; Bo, M. W.
- This paper presents the findings of an extensive laboratory investigation on the geotechnical properties of waste excavation rock in pavement sub-bases. The waste excavation rock used in this study originated from 'basalt floaters' or surface excavation basalt rock (basalt). Traditionally this material would have been disposed as waste, often into landfill. The engineering properties of the crushed basaltic waste rock were compared with the local road authority specifications to assess its performance as a pavement sub-base material. The experimental programme was extensive and included tests such as particle size distribution, modified Proctor compaction, particle density, water absorption, California Bearing Ratio, Los Angeles abrasion loss, pH, organic content, static triaxial and repeated load triaxial tests. The Los Angeles abrasion loss value obtained indicated that the crushed basaltic waste rock is durable. California Bearing Ratio values were found to satisfy the local state road authority requirements for a lower sub-base material. Repeated load triaxial testing established that the crushed basaltic waste rock would perform satisfactorily as a pavement sub-base material in the field. The results of the laboratory testing undertaken in this research indicated that crushed basaltic waste excavation rock satisfied the criteria for use in pavement sub-base applications.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology
- Journal of Materials in Civil Engineering, Vol. 24, no. 7 (Jul 2012), pp. 924-932
- Publication year
- FOR Code(s)
- 0905 Civil Engineering; 0912 Materials Engineering
- Excavation rock; Pavements; Permanent strain; Repeated load triaxial; Sub-base materials; Waste rock
- American Society of Civil Engineers
- Publisher URL
- Copyright © 2011 by the American Society of Civil Engineers.
- Peer reviewed