UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Dynamic compressive behaviour of recycled tyre steel fibre reinforced concrete

Chen, M; Si, H; Fan, X; Xuan, Y; Zhang, M; (2022) Dynamic compressive behaviour of recycled tyre steel fibre reinforced concrete. Construction and Building Materials , 316 , Article 125896. 10.1016/j.conbuildmat.2021.125896.

[thumbnail of Full_Manuscript.pdf] Text
Full_Manuscript.pdf - Accepted Version
Access restricted to UCL open access staff until 4 December 2022.

Download (2MB)

Abstract

This paper presents a systematic experimental study on dynamic compressive behaviour of recycled tyre steel fibre (RTSF) reinforced concrete. The use of RTSF can not only enhance the mechanical properties and sustainability of cementitious materials but also reduce the environmental impact of waste tyres. A series of tests were conducted to investigate the effect of RTSF content (0.5%, 0.75%, 1.0% and 1.25%) on workability, air content and compressive strength of concrete as well as the dynamic compressive behaviour under various impact velocities (35, 55, 75, 95, 110 and 125 s−1). For comparisons, plain concrete without fibre and concrete reinforced with 1.0% industrial steel fibre (ISF) were regarded as the reference mixtures. The split Hopkinson pressure bar (SHPB) was adopted to study the dynamic failure pattern, dynamic compressive strength, dynamic increase factor (DIF), energy dissipation and toughening mechanism. Results indicate that with increasing RTSF content, the slump of concrete was reduced while its air content was increased. At the same fibre content (1.0%), RTSF reinforced concrete exhibited a higher workability and air content than ISF reinforced concrete due to the different fibre shape and aspect ratio. The compressive strength of concrete at various strain rates went up with the increase of RTSF content from 0 to 0.75% but reduced with the further increase of RTSF content from 0.75% to 1.25%. DIFs of all mixtures were closely related to strain rate. The optimal dosage of RTSF for concrete was found to be 0.75%, considering workability, compressive strength, and dynamic compressive performance.

Type: Article
Title: Dynamic compressive behaviour of recycled tyre steel fibre reinforced concrete
DOI: 10.1016/j.conbuildmat.2021.125896
Publisher version: https://doi.org/10.1016/j.conbuildmat.2021.125896
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Fibre reinforced concrete, Recycled fibre, Split Hopkinson pressure bar, Dynamic properties, Impact behaviour, Toughening mechanism
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10139647
Downloads since deposit
1Download
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item