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Structural Engineering and Mechanics Volume 78, Number 2, April25 2021 , pages 175-186 DOI: https://doi.org/10.12989/sem.2021.78.2.175 |
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Microstructural and mechanical characteristics of self-compacting concrete with waste rubber |
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Marijana Hadzima-Nyarko, Karlo E. Nyarko, Daniela Djikanovic and Goran Brankovic
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| Abstract | ||
| Due to the increasing environmental pollution caused by scrap tires, a solution is being sought to recycle and use them in a field of civil engineering, i.e., construction. This paper will provide a brief overview of previous researches that give detailed information on the advantages and disadvantages, considering the microstructural and mechanical characteristics of self-compacting concrete, when waste tire rubber as an aggregate is added. With this aim, a database of 144 different mixtures of self-compacting concrete with partial substitute of natural aggregate with recycled tire rubber (self-compacting rubberized concrete, SCRC) provided by various researchers was created. In this study we show that Gaussian process regression (GPR) modelling is an appropriate method for predicting compressive strength of SCC with recycled tire rubber particles and is in accordance with the results displayed by SEM images. | ||
| Key Words | ||
| self-compacting concrete; compressive strength; recycled rubber; Gaussian process regression (GPR) model | ||
| Address | ||
| Marijana Hadzima-Nyarko: Faculty of Civil Engineering and Architecture Osijek, Josip Juraj Strossmayer University of Osijek, Vladimira Preloga 3, 31000 Osijek, Croatia Karlo E. Nyarko: Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Josip Juraj Strossmayer University of Osijek, Kneza Trpimira 2b, 31000 Osijek, Croatia Daniela Djikanovic: Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, Belgrade, Serbia Goran Brankovic: Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, Belgrade, Serbia | ||