Fracture energy and mechanical characteristics of self-compacting concretes including waste bladder tyre

Bideci, Alper; Öztürk, Hakan; Bideci, Özlem Salli; Emiroğlu, Mehmet

doi:10.1016/j.conbuildmat.2017.05.191

Cited by 38 publications

(17 citation statements)

References 9 publications

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“…Replacement levels, as given in Table 1 , show that only a few authors replaced natural aggregate with rubber aggregate above level of 40% (Emiroğlu et al [ 6 ], Ismail and Hassan [ 7 ], and Uygunoğlu and Topçu [ 23 ]); in most experimental investigations the replacement level was 15% (Bideci et al [ 24 ]) or 20% (Ganesan et al [ 20 ], Mishra and Panda [ 19 ], Zaoiai et al [ 21 ]), all for the purpose of maintaining acceptable fresh SCC properties. Except for the similar final test results given above, most authors were prone to use different kind of chemical admixtures to maintain or even to improve fresh SCC properties, i.e., superplasticizer (SP) [ 1 , 5 , 6 , 19 , 20 , 23 , 24 , 25 , 26 , 27 ]; viscosity modified admixture (VMA) [ 5 , 20 , 26 , 27 ]; or, high range water reducer admixture (HRWRA) [ 7 , 14 , 22 , 28 , 29 ].…”

Section: Fresh Scc Propertiesmentioning

confidence: 99%

“…The results showed a reduction in fracture energy by 10.91%, 13.03%, 18.55%, 24.01% and 28.05% when fine aggregate was replaced with 5%, 10%, 15%, 20% and 25% crumb rubber (size 0–4 mm) by volume, respectively. The results of fracture energy testing carried out by Bideci et al [ 24 ] indicated that with inclusion of 10% and 15% of rubber aggregate content in SCC with length size of 50 mm, there was an increase in fracture energy of 1% and 5%; in all other cases, they reported a reduction in fracture energy by a maximum of 35%. Due to the lack of experimental results, it can be noted that detailed study of fracture energy of SCRC still needs to be done.…”

Section: Hardened Scc Propertiesmentioning

confidence: 99%

“…Bideci et al [ 24 ] reported an increase in water absorption of SCC specimens with an increase of rubber aggregate (RA) content obtained from waste bladder tyres. With inclusion of up to 15% rubber aggregate content in SCC mixtures, the increase in water absorption was up to 88% for different rubber aggregate length sizes (25, 50 and 75 mm).…”

Section: Hardened Scc Propertiesmentioning

confidence: 99%

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Recycled Rubber as an Aggregate Replacement in Self-Compacting Concrete—Literature Overview

2018

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In the past few decades, due to the exponential increase of the world’s population, the number of discarded waste tires has become a serious ecological and environmental problem. Decomposition of waste tire rubber can take longer than 50 years, and every year the number of discarded tires is rapidly growing. With the inclusion of waste tire rubber into self-compacting concrete this global problem can be reduced. Waste tire rubber can be incorporated in self-compacting concrete by partially replacing the natural fine and coarse aggregate, reducing consumption of sand and gravel and preserving these natural materials. In addition, recycling and reusing waste tire rubber avoids the need for tire landfilling, as one of the major ecological problem of the near future. Replacement of natural aggregate with waste tire rubber can have an undesirable influence on the mechanical properties of self-compacting concrete, i.e., compressive strength, flexural strength, splitting tensile strength, and modulus of elasticity, however. On the other hand, replacing natural gravel or sand with waste tire rubber can improve impact resistance, ductility, and fatigue resistance. This paper presents an overview of the literature investigating recycled waste tire rubber used as a fine and/or coarse aggregate replacement in self-compacting concrete and its influence on several essential fresh and hardened self-compacting concrete properties.

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Section: Fresh Scc Propertiesmentioning

confidence: 99%

Section: Hardened Scc Propertiesmentioning

confidence: 99%

Section: Hardened Scc Propertiesmentioning

confidence: 99%

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Recycled Rubber as an Aggregate Replacement in Self-Compacting Concrete—Literature Overview

2018

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“…On the other hand, a smaller number of authors investigated the self-compacting rubberized concrete (SCRC) in terms of concrete used for structural elements [8,[14][15][16]. The advantages of using recycled rubber as a substitute material for natural fine and/or coarse aggregate in concrete such as increased ductility, reduced total concrete mass, improved dynamic properties [17][18][19][20][21][22], increased freeze-thaw resistance [23][24][25][26][27], increased cracking resistance [16,28], increased fracture energy [22,29,30], and concrete resistance to tensile stresses [30] provide sufficient reasons to continue experimental research and laboratory work on reinforced concrete elements and system (columns, beams, frames) with a certain percentage of recycled rubber powder Dolomite powder, size < 0.063 mm, from a local quarry, with a specific gravity of 2.97 g/cm 3 and Blaine fineness of 5206 cm 2 /g was used as a filler. The density of cement, silica fume, and dolomite powder was tested according to ASTM C188-16:2011 [51].…”

Section: Introductionmentioning

confidence: 99%

Prediction Models for the Mechanical Properties of Self-Compacting Concrete with Recycled Rubber and Silica Fume

et al. 2020

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The paper aims to investigate the influence of waste tire rubber and silica fume on the fresh and hardened properties of self-compacting concrete (SCC) and to design multivariate regression models for the prediction of the mechanical properties of self-compacting rubberized concrete (SCRC). For this purpose, 21 concrete mixtures were designed. Crumb rubber derived from end-of-life tires (grain size 0.5–3.5 mm) was replaced fine aggregate by 0%, 5%, 10%, 15%, 20%, 25%, and 30% of total aggregate volume. Silica fume was replaced cement by 0%, 5%, and 10% of the total cement mass. The optimal replacement level of both materials was investigated in relation to the values of the fresh properties and mechanical properties of self-compacting concrete. Tests on fresh and hardened self-compacting concrete were performed according to the relevant European standards. Furthermore, models for predicting the values of the compressive strength, modulus of elasticity, and flexural strength of SCRC were designed and verified with the experimental results of 12 other studies. According to the obtained results, mixtures with up to 15% of recycled rubber and 5% of silica fume, with 28 days compressive strength above 30 MPa, were found to be optimal mixtures for the potential future investigation of reinforced self-compacting rubberized concrete structural elements.

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“…Considering that waste tires hold toxic and soluble components, this may lead to the reduction of biodiversity in landfill sites. Generally, the cheapest and easiest method for decomposing waste tires is to burn them, which results in problems that harm human health and the environment [1][2][3][4]. In addition, the residue powder left after burning pollutes the soil.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on Mechanical and Thermal Insulation Properties of Rubberized Concrete Including Its Microstructure

Guo

Huang

et al. 2019

Applied Sciences

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This study aimed to investigate the effects of the size and weight content of waste rubber particles on the relevant performances of rubberized concrete. First, the fine aggregates were partially replaced by rubber particles of different sizes to produce rubberized concrete. Secondly, the mechanical and thermal insulation properties of rubberized concrete were investigated. Finally, microstructural analyses of rubberized concrete including scanning electronic microscope (SEM) and energy distribution spectroscopy (EDS) were examined. Experimental results indicated that uniaxial compressive strength of rubberized concrete was reduced, while the peak strain was gradually increased and thermal insulation properties were improved with the increase of rubber content or decrease of rubber particle size. In addition, rubber particles affected the failure modes, endowing concrete with weak brittleness and strong cracking resistance. Additionally, it was observed that the interfacial adhesion between the matrix rubber and the aggregates was weak under SEM, which seemed to be a key factor that reduced the strength of rubberized concrete.

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Fracture energy and mechanical characteristics of self-compacting concretes including waste bladder tyre

Cited by 38 publications

References 9 publications

Recycled Rubber as an Aggregate Replacement in Self-Compacting Concrete—Literature Overview

Recycled Rubber as an Aggregate Replacement in Self-Compacting Concrete—Literature Overview

Prediction Models for the Mechanical Properties of Self-Compacting Concrete with Recycled Rubber and Silica Fume

An Experimental Study on Mechanical and Thermal Insulation Properties of Rubberized Concrete Including Its Microstructure

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