Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/13453
Title: Rubberised concrete refinement by cement substitution and rubber particle pretreatment
Authors: Polydorou, Thomaida 
Neocleous, Kyriacos 
Koutsokeras, Loukas E. 
Constantinides, Georgios 
Kyriakides, Nicholas 
Pilakoutas, Kypros 
Hadjimitsis, Diofantos G. 
Keywords: Circular economy;Cement substitution;Rubberised concrete;Fibre reinforcement;End-of-life tyres
Category: Civil Engineering;Civil Engineering
Field: Engineering and Technology
Issue Date: 2019
Publisher: RILEM
Source: 2nd RILEM Spring Convention & International Conference on Sustainable Materials, Systems and Structures (SMSS2019)
Link: https://www.rilem.net/agenda/2nd-rilem-spring-convention-international-conference-on-sustainable-materials-systems-and-structures-smss2019-1087
Project: SAFER Innovative Concrete Barriers for Forgiving Road Infrastructure 
Conference: RILEM Spring Convention & International Conference on Sustainable Materials, Systems and Structures 
Abstract: Re-use of End-of-life tyre components into concrete is a viable solution to the environmental issue of tyre waste that can result in promising, high added value concrete applications. End-of-life tyre particles are added to conventional concrete by replacement of a percentage of its aggregate content, improving concrete deformability. The material is currently in the initial stages of research for structural applications, with weakness observed over the interfacial transition zone between the rubber and cement paste. This paper examines the potential of cement substitution by a combination of micro and nanoscale silica particles as well as the effect of rubber pre-treatment by coating with a Diabase quarry dust slurry for surface modification; aiming to refine the rubber/cement paste interface in rubberised concrete, thus improving its compressive strength and consequently structural performance. The effectiveness of cement substitution and rubber treatment methods is measured by comparison of the samples compressive strength at 7 and 28 days and detected in microscopic observations of hardened rubberised concrete samples. It is indicated the rubber pre coating method investigated is a promising procedure, proven to be effective in reducing the porosity at the rubber-cement paste interface and increasing the 28-day concrete compressive strength more than twice.
URI: http://ktisis.cut.ac.cy/handle/10488/13453
Rights: © 2019 RILEM
Type: Conference Papers
Appears in Collections:Δημοσιεύσεις σε συνέδρια/Conference papers

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