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Optimisation of rubberised concrete with high rubber content : an experimental investigation
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Raffoul, Samar, Garcia, Reyes, Pilakoutas, Kypros, Guadagnini, Maurizio and Flores Medina, Nelson (2016) Optimisation of rubberised concrete with high rubber content : an experimental investigation. Construction and Building Materials, 124 . pp. 391-404. doi:10.1016/j.conbuildmat.2016.07.054 ISSN 0950-0618.
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Official URL: https://doi.org/10.1016/j.conbuildmat.2016.07.054
Abstract
This article investigates experimentally the behaviour of rubberised concrete (RuC) with high rubber content so as to fully utilise the mechanical properties of vulcanised rubber. The fresh properties and short-term uniaxial compressive strength of 40 rubberised concrete mixes were assessed. The parameters examined included the volume (0–100%) and type of mineral aggregate replacement (fine or coarse), water or admixture contents, type of binder, rubber particle properties, and rubber surface pre-treatments. Microstructural analysis using a Scanning Electron Microscope (SEM) was used to investigate bond between rubber and concrete at the Interface Transition Zone (ITZ). This initial study led to the development of an “optimum” RuC mix, comprising mix parameters leading to the highest workability and strength at all rubber contents. Compared to a non-optimised concrete with 100% replacement of fine aggregates with rubber, the compressive strength of concrete with optimised binder material and moderate water/binder ratio was enhanced by up to 160% and the workability was improved significantly. The optimisation proposed in this study will lead to workable high rubber content RuC suitable for sustainable high-value applications.
| Item Type: | Journal Article | ||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Rubber -- Industrial applications, Earthquake engineering | ||||||||
| Journal or Publication Title: | Construction and Building Materials | ||||||||
| Publisher: | Elsevier | ||||||||
| ISSN: | 0950-0618 | ||||||||
| Official Date: | 15 October 2016 | ||||||||
| Dates: |
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| Volume: | 124 | ||||||||
| Page Range: | pp. 391-404 | ||||||||
| DOI: | 10.1016/j.conbuildmat.2016.07.054 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Date of first compliant deposit: | 13 March 2019 | ||||||||
| Date of first compliant Open Access: | 19 March 2019 | ||||||||
| RIOXX Funder/Project Grant: |
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