Behaviour of ultra-thin continuously reinforced concrete pavements under moving axle loads

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dc.contributor.author Kearsley, Elsabe P.
dc.contributor.author Smit, Martha Sophia
dc.date.accessioned 2023-10-27T08:13:11Z
dc.date.issued 2023
dc.description.abstract Concrete pavements are typically considered to be rigid pavements and are designed using principles based on the beam-on-elastic support equations as derived by Westergaard in 1926. Ultra-Thin Continuously Reinforced Concrete Pavements (UTCRCP) have been constructed with concrete layers as thin as 40 mm. These pavements have been subjected to millions of load cycles without any noticeable damage. The design of these flexible concrete pavements has proven to be problematic as they are neither rigid nor truly flexible. To investigate the response of UTCRCP to traffic loading, a geotechnical centrifuge was used to test UTCRCP scale models at 10G. The results showed that the centrifugal forces had a significant effect on the stiffness of the scaled model. It was observed that the interaction between the substructure and flexible concrete layer differed notably from the assumed behaviour of both rigid and flexible pavements. When designing UTCRCP, not only the loading pattern caused by the interaction between the wheels on an axle and adjacent axles, but also the rutting of the substructure that results in the concrete layer spanning across gaps below it, causing increased vertical pressure between wheel paths, should be considered. en_US
dc.description.department Civil Engineering en_US
dc.description.embargo 2024-02-14
dc.description.librarian hj2023 en_US
dc.description.uri https://www.tandfonline.com/loi/gpav20 en_US
dc.identifier.citation E.P. Kearsley & M.S. Smit (2023) Behaviour of ultra-thin continuously reinforced concrete pavements under moving axle loads, International Journal of Pavement Engineering, 24:1, 2158189, DOI: 10.1080/10298436.2022.2158189. en_US
dc.identifier.issn 1029-8436 (print)
dc.identifier.issn 1477-268X (online)
dc.identifier.other 10.1080/10298436.2022.2158189
dc.identifier.uri http://hdl.handle.net/2263/93097
dc.language.iso en en_US
dc.publisher Taylor and Francis en_US
dc.rights © 2022 Informa UK Limited, trading as Taylor & Francis Group. This is an electronic version of an article published in International Journal of Pavement Engineering, vol. 24, no. 1, pp. 1-12, 2023. doi : 10.1080/10298436.2022.2158189. International Journal of Pavement Engineering is available online at : http://www.tandfonline.com/loi/gpav20. en_US
dc.subject Concrete pavements en_US
dc.subject Ultra-thin concrete pavement en_US
dc.subject Ultra-thin continuously reinforced concrete pavement (UTCRCP) en_US
dc.subject Pavement design en_US
dc.subject Scaled physical modelling en_US
dc.subject Centrifuge modelling en_US
dc.subject Accelerated pavement testing en_US
dc.subject Load spreading en_US
dc.title Behaviour of ultra-thin continuously reinforced concrete pavements under moving axle loads en_US
dc.type Postprint Article en_US


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