Alsaif, A, Bernal, SA, Guadagnini, M et al. (1 more author) (2018) Durability of steel fibre reinforced rubberised concrete exposed to chlorides. Construction and Building Materials, 188. pp. 130-142. ISSN 0950-0618
Abstract
This study assesses the durability and transport properties of low water/binder ratio (0.35) steel fibre reinforced rubberised concrete (SFRRuC) mixes, which are proposed to be used as flexible concrete pavements. Waste tyre rubber is incorporated in concrete as fine and coarse aggregate replacement and blends of manufactured steel fibres and recycled tyre steel fibres are used as internal reinforcement. The fresh, mechanical and transport properties of plain concrete are compared with those of SFRRuC mixes having different substitutions of rubber aggregates (0, 30 and 60% by volume). The chloride corrosion effects due to exposure to a simulated accelerated marine environment (intermittent wet-dry cycles in 3% NaCl solution) is also evaluated. The results show that, although water permeability (e.g. volume of permeable voids and sorptivity) and chloride ingress increase with rubber content, this increase is minor and water and chlorides permeability are generally within the range of highly durable concrete mixes. No visual signs of deterioration or cracking (except superficial rust) were observed on the surface of the concrete specimens subjected to 150 or 300 days of accelerated chloride corrosion exposure and a slight increase in the mechanical properties is observed. This study shows that the examined low water/binder SFRRuC mixes promote good durability characteristics, making these composite materials suitable for flexible concrete pavement applications.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 Elsevier Ltd. This is an author produced version of a paper published in Construction and Building Materials. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Rubberised concrete; Steel fibre reinforced concrete; Flexible concrete pavement; Hybrid reinforcement |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 12 Sep 2018 12:35 |
Last Modified: | 23 Aug 2019 00:42 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.conbuildmat.2018.08.122 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:135528 |
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Filename: Durability of Steel Fibre Reinforced Rubberised Concrete Exposed to Chlorides. Final.pdf
Licence: CC-BY-NC-ND 4.0