Use of shredded rubber tire aggregates for roller compacted concrete pavement

Meddah, Abdelaziz; Beddar, Miloud; Bali, Abderrahim

doi:10.1016/j.jclepro.2014.02.052

Cited by 161 publications

(79 citation statements)

References 10 publications

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“…To improve rubber-cement paste chemical/physical bonding [18], several rubber pre-treatments have been investigated such as washing with water [21,35,42], polyvinyl alcohol [43], NaOH [13,41,44,45], Ca(OH) 2 [46], silane coupling agents [47], organic sulphur compounds [48] or acid [40], as well as partial oxidation of the rubber surface [49], exposure to UV radiations [50] or pre-coating with cement [51], mortar [26], silica fume [39], limestone [52] or sand [45]. Despite some success in rubber pre-treatments (strength increase in the range of 3-40% [18,26,41,51,52]), results are often scattered and inconclusive, particularly when mixes with pre-treated rubber are not compared to mixes with as-received rubber [35,42].…”

mentioning

confidence: 99%

Optimisation of rubberised concrete with high rubber content: An experimental investigation

Raffoul

Garcia

Pilakoutas

et al. 2016

Construction and Building Materials

210

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mentioning

confidence: 99%

Optimisation of rubberised concrete with high rubber content: An experimental investigation

Raffoul

Garcia

Pilakoutas

et al. 2016

Construction and Building Materials

210

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“…Plus de 275 millions de pneus usagés sont stockés dans les décharges à travers les Etats Unis [1,2]. En Algérie, le nombre des pneus usagés est estimé à environ 1.5 millions par an [3].…”

Section: Introductionunclassified

“…En Algérie, le nombre des pneus usagés est estimé à environ 1.5 millions par an [3]. L'élimination de ce type de déchets pose actuellement un sérieux problème pour les pays autour du monde en raison de leur effet direct sur l'environnement et la santé humaine [1,4]. Le recyclage de ces déchets dans l'industrie de construction s'avère une solution adéquate pour la production d'un éco-béton et peut contribuer à l'amélioration de certaines de ses propriétés.…”

Section: Introductionunclassified

Performance of self-compacting rubberized concrete

et al. 2018

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Used tyre rubber wastes present a serious environmental problem of pollution and storage. The recycling of this waste in the industry of construction could be an appropriate solution to produce an eco-concrete and could contribute to the improvement of some of its properties. This paper aims to study the possibility of using tyre rubber waste as fine aggregate replacement in self-compacting concrete (SCC). Fines rubber particles of 0-2 mm of waste tyres were added SCC mixtures as a partial substitution of the total volume of sand at different percentages (5, 10, 15, 20 and 30%). The influence of fines rubber of used tyres on fresh and hardened properties of the SCC was investigated. The fresh properties of SCC were performed by using slump-flow, T50 flow time, L-box, V-funnel and segregation resistance tests.Characteristics of the hardened state were obtained by compressive strength and thermal conductivity. The experimental results showed that the inclusion of fines rubber in SCC decreases the workability, reduced its passing capacity and increases the possibility of blocking. A decrease in compressive strength is observed with the increase in rubber content.On the other hand, the incorporation of the rubber fines aggregates enhances in a remarkably way the thermal conductivity.Résumé : Les pneus usagés présentent des problèmes de pollution de l'environnement et de stockage. Le recyclage de ces déchets dans l'industrie de construction, s'avère une solution adéquate pour la production d'un éco-béton et peut contribuer à l'amélioration de certaines de ses propriétés. Cet article vise à étudier la possibilité de la valorisation des déchets caoutchouteux des pneus usagés sous forme de granulats dans le béton autoplaçant (BAP). Des particules de caoutchouc de 0-2mm de pneus ont été ajoutées aux mélanges du BAP en substitution partiel du volume total de sable à différents pourcentages (5, 10, 15, 20 et 30%). L'influence du caoutchouc sur les propriétés du BAP, aussi bien à l'état frais qu'à l'état durci, a été analysée. Les propriétés à l'état frais ont été déterminées à l'aide de tests du diamètre d'étalement et du temps d'écoulement, de L-box, du temps d'écoulement à l'entonnoir en V et de la résistance à la ségrégation par tamisage. Les caractéristiques à l'état durci ont été obtenues par l'essai de la résistance à la compression et la conductivité thermique. Les résultats expérimentaux ont montré que la présence du caoutchouc dans le BAP diminue l'ouvrabilité, réduit sa capacité de passage et augmente la possibilité de blocage. Une chute de la résistance à la compression est observée avec l'augmentation de taux de caoutchouc. Par contre, l'incorporation des granulats de caoutchouc améliore d'une façon remarquable la conductivité thermique.

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“…On the other hand, the needs in terms of mineral aggregates are still increasing with intensive use in structures and transportation projects. Therefore, recycling of waste rubber in pavements is considered as ecological and economical solution due to their promising benefits, preserving natural resources and to produce an eco-friendly material [12][13][14][15]19].…”

Section: Introductionmentioning

confidence: 99%

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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Use of shredded rubber tire aggregates for roller compacted concrete pavement

Cited by 161 publications

References 10 publications

Optimisation of rubberised concrete with high rubber content: An experimental investigation

Optimisation of rubberised concrete with high rubber content: An experimental investigation

Performance of self-compacting rubberized concrete

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

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