Effects of Recycled Tires Rubber Aggregates on the Characteristics of Cement Concrete

Boudaoud, Zeineddine; Beddar, Miloud

doi:10.4236/ojce.2012.24025

Cited by 35 publications

(30 citation statements)

References 14 publications

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“…It is clearly appeared that the compressive strength was negatively affected by the incorporated rubber. The obtained results were in agreement with those obtained by many studies in literature [4,5,8,20]. In addition, it is clear that the kinetics of strength developments decreased with the increase of rubber content.…”

Section: Effect Of Rubber On the Mechanical Propertiessupporting

confidence: 82%

Study of the effects of mechanical and chemical treatment of rubber on the performance of rubberized roller-compacted concrete pavement

Meddah

Bensaci

Beddar

et al. 2017

Innov. Infrastruct. Solut.

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This study aims to analyze the possibility of valorizing rubber waste in roller-compacted concrete pavement (RCCP) mixes as aggregates. The rubber particles were added to the mix as partial replacement of the total volume of gravels at different rates (5, 10, 15, 20, 25, 30%). The experimental approach followed in this research consisted of studying the effects of the incorporated rubber on the mechanical properties of RCCP. The obtained results show that the incorporation of rubber changes the behavior of RCCP mixes. In presence of rubber, the RCCP became more ductile. The principal disadvantage of rubber incorporation was the decrease in the mechanical properties of RCC. To remedy this problem, the rubber particles were subjected to a treatment and silica fume was added to the mix. The obtained results showed that the performance of RCCP can be improved by modifying the surface roughness of rubber particles. Therefore, a large part of strength losses were corrected.

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Section: Effect Of Rubber On the Mechanical Propertiessupporting

confidence: 82%

Study of the effects of mechanical and chemical treatment of rubber on the performance of rubberized roller-compacted concrete pavement

Meddah

Bensaci

Beddar

et al. 2017

Innov. Infrastruct. Solut.

Self Cite

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“…It was due to its workability,increase in the proportion of gravels and the wide range of aggregate size in the concrete mix [12].…”

Section: Literature Reviewmentioning

confidence: 99%

A Study on the Prediction of Compressive Strength of M20 Grade Concrete using Reclaimed Rubber and Silica fume

2017

IJIET

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Abstract-Everyday the demand for building materials is increasing through out the world. This study is focused on the prediction of compressive strength of M20 grade concrete cubes and cylinders by partially replacing coarse aggregates with reclaimed rubber and cement with silica fume in various proportions. The objective of this research is to determine the optimum replacement of Reclaimed Rubber (RR) and Silica Fume(SF) in concrete experimentally and analytically. In the preliminary study 81 cubes were cast replacing cement with silica fume in 3 percent increments. The main study was carried out by casting another 81 cubes replacing cement with optimum SF and with various proportions of RR. Genetic algorithm was used to predict the compressive strength of concrete. 1000 sets were taken and 100 iterations were run during training of GA models. Experimental results revealed that the optimum replacement of SF and RR as 12 percent and 9 percent respectively. Moreover the variation between experimental and analytical results were found to be less than 10 percent in both cubes and cylinders.

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“…No entanto, de acordo com BOUDAOUD e BEDDAR [11], a substituição de partes dos agregados tradicionais por resíduos de borracha apresenta tanto vantagens econômicas quanto ecológicas.…”

Section: Introductionunclassified

Uso de granulado de borracha em substituição parcial ao agregado miúdo na produção de tijolos ecológicos

et al. 2017

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RESUMO O volume de resíduos sólidos produzido vem aumentando de modo desordenado e prejudicial à natureza, uma vez que não são dados a ele fins adequados. Um dos resíduos sólidos que mais vem preocupando ambientalistas, sociedade e governo são os pneus inservíveis, os quais possuem materiais em sua composição que demoram centenas de anos para se deteriorar. Sendo assim, este trabalho tem como objetivo demonstrar a viabilidade do uso de granulados de borracha de pneus inservíveis na fabricação de tijolos comuns de concreto, tornando-se uma alternativa de destinação para pneus descartados no meio ambiente. Para tanto, foram produzidos tijolos de referência (sem resíduo) e com adições de 5%, 10% e 20% de granulado de borracha em substituição ao agregado miúdo, comparando-os através de ensaios de compressão simples e absorção de água nos blocos. Além disso, os tijolos produzidos foram comparados a blocos maciços cerâmicos utilizados na região de Catalão, Goiás. Houve também a caracterização química e granulométrica dos materiais utilizados para compor os tijolos ecológicos. Frente aos resultados é possível concluir que os blocos com adição do resíduo de borracha apresentaram menor densidade e peso próprio, além de possuírem maior taxa de absorção. Em relação à resistência à compressão, percebeu-se que houve uma queda de aproximadamente 76% com a adição de borracha, não havendo significativa alteração até 20% de borracha. Mesmo com estas características os tijolos atenderam às exigências das normas, o que possibilita sua indicação para alvenaria de vedação.

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Effects of Recycled Tires Rubber Aggregates on the Characteristics of Cement Concrete

Cited by 35 publications

References 14 publications

Study of the effects of mechanical and chemical treatment of rubber on the performance of rubberized roller-compacted concrete pavement

Study of the effects of mechanical and chemical treatment of rubber on the performance of rubberized roller-compacted concrete pavement

A Study on the Prediction of Compressive Strength of M20 Grade Concrete using Reclaimed Rubber and Silica fume

Uso de granulado de borracha em substituição parcial ao agregado miúdo na produção de tijolos ecológicos

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