The Effect of Tire-Rubber Pretreatment on the Physical–Mechanical Properties and Durability of High-Performance Concrete

Silva, Fabiana Maria da; Batista, Lucas Silveira; Barbosa, Luísa Andréia Gachet; Lintz, Rosa Cristina Cecche

doi:10.1061/(asce)mt.1943-5533.0004520

Cited by 6 publications

(6 citation statements)

References 62 publications

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“…As with the other resistances, there is a reduction in the modulus of elasticity for increasing levels of rubber. The low modulus of elasticity of the rubber and its hydrophobic nature generates weak points inside the cement paste and causes a decrease in mechanical strength 8,14,15,42,43 . This can be proven by the images of the microstructure of the concretes presented in Figure 3 and 4.…”

Section: Resultsmentioning

confidence: 99%

“…In the civil construction sector, concrete is one of the construction materials that has incorporated rubber waste from tires to replace the aggregates, in order to reduce the extraction of non-renewable resources and add properties that improve its performance in service. Research reports that the incorporation of tire rubber as aggregate in concrete causes reduction of workability, density, compressive and tensile strength, modulus of elasticity, and improvement of damping, thermoacoustic properties [14][15][16][17][18][19] .…”

Section: Introductionmentioning

confidence: 99%

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Mechanical and Acoustic Performance of Concrete Containing Vermiculite and Rubber

Batista,

Silva,

Gomes

et al. 2023

Mat. Res.

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The excessive production of new tires and the inappropriate disposal of waste tires have caused serious environmental and public health problems. To properly dispose of this environmental liability, these rubber residues have been used in cement composites to improve some of their properties in the hardened state. This study evaluates the incorporation of rubber and vermiculite residues in concrete in terms of mechanical and acoustic properties. Different concrete compositions were defined where rubber waste and vermiculite were used to replace the natural sand mass. To characterize the concretes, mechanical and acoustic tests, and analysis of the microstructure of the material were carried out to better understand its properties. An improvement in the acoustic properties can be seen in the composites with rubber and vermiculite. Thus, the great contribution of this research is the development of concrete compositions for acoustic barriers, technically viable, adding environmental benefits.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical and Acoustic Performance of Concrete Containing Vermiculite and Rubber

Batista,

Silva,

Gomes

et al. 2023

Mat. Res.

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“…The rubber residue from waste tires has important physical and mechanical characteristics, which make it strongly recommended to be used in civil construction in concrete [14][15][16][17][18] and mortar [19][20][21][22] . Seeking to mitigate the harmful effects of its disposal on the environment 23 .…”

Section: Literature Reviewmentioning

confidence: 99%

Thermal and Acoustic Properties of Rubberized Mortars for Coatings

Oliveira,

Silva,

Angelin

et al. 2023

Mat. Res.

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Recycled crumb rubber can be sustainable used in mortar both to mitigate nature aggregate consumption, reducing environmental pollution, as well, to improve the acoustic and thermal performance of buildings, without damaging its mechanical properties. This paper explores workability, microstructure, mechanical, thermal and acoustic properties considering increasing contents of crumb rubber (0%, 5%, 10%, 15% and 20% replacement, by volume, of fine aggregate). Mortar characterization tests were carried out in the fresh and hardened state. It has been found that replacing the aggregate with scrap tyre rubber reduced the compressive strength on average 12% and 67% and for tensile strength 35% and 53%, for the contents of 10% and 20% respectively, compared to the reference. Furthermore, it was found that the reductions in thermal conductivity reached 16% and 29% and an increase in acoustic attenuation on average 12% and 13%. Moreover, scanning electron microscopy images were analyzed, justifying the mechanical results obtained. Although the experimental results indicated that the workability and mechanical strengths decreased with the increase of rubber replacement rate, the studied mixtures met the standard specifications, and thus suitable for walls and ceilings coating applications, improve the acoustic and thermal performance of buildings and as a sustainable material.

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“…Continuous development in engineering construction has led to improved requirements for concrete performance (Afroughsabet et al, 2016; Mostafa et al, 2022). High-performance concrete (HPC) has been promoted (Ayazi and Shafaei, 2019; Nguyen et al, 2021; Bhanu et al, 2022) due to its advantages such as high strength, high durability, strong environmental adaptability, and rapid construction (Sohail et al, 2021; Marvila et al, 2021; da Silva et al, 2022). Studies have shown that HPC can exhibit good mechanical properties both during and after a fire (Peng et al, 2006; Xiao et al, 2018; Mubarak et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Experimental study on post-fire behaviour of a novel assembled wall-slab joint

Shen

et al. 2023

Advances in Structural Engineering

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In this study, the post-fire behaviour of a novel assembled wall-slab joint with high-performance concrete (HPC) post-casted in the core area was experimentally investigated. Fire and post-fire monotonic static loading tests were performed on three full-scale specimens, including two assembled joints and one cast-in-place joint for comparison. The temperature distribution inside the joints exposed to fire, failure displacement and failure mode of the joints after a fire, and residual bearing capacity of the joints are discussed. The results show that the assembled wall-slab joints are more integral than the cast-in-place joints after a fire. In addition, HPC can effectively reduce the temperature in the core area of an assembled joint exposed to fire and improve its post-fire stiffness. The failure modes of the two types of joints were also different. The residual bearing capacity of the assembled wall-slab joint after 1.5 h of heating was approximately 22.3% lower than after 1 h of heating. In addition, the residual bearing capacity of the assembled wall-slab joint was approximately 28% larger than that of the cast-in-place wall-slab joint at the same heating time of 1.5 h. In general, the assembled wall-slab joint showed better performance than the cast-in-place joint both during and after a fire.

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The Effect of Tire-Rubber Pretreatment on the Physical–Mechanical Properties and Durability of High-Performance Concrete

Cited by 6 publications

References 62 publications

Mechanical and Acoustic Performance of Concrete Containing Vermiculite and Rubber

Mechanical and Acoustic Performance of Concrete Containing Vermiculite and Rubber

Thermal and Acoustic Properties of Rubberized Mortars for Coatings

Experimental study on post-fire behaviour of a novel assembled wall-slab joint

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