Mechanical behaviour analysis of polyester polymer mortars reinforced with tire rubber fibres

S.P.B. Sousa , M.C.S. Ribeiro , E.M. Cruz , G.M. Barrera , A.J.M. Ferreira
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引用次数: 8

Abstract

Tires effective reutilization has become an important research topic in recent years due to the stockpiles increase that creates environmental problems. Recent European regulations forbid the tires burning and landfilling, setting several recycling objectives. Within this context, the reutilization of tire rubber recyclates into cement and polymer concrete materials, as reinforcement or aggregate replacement, has received lately a great attention. The present work aim is to analyse the modifications induced by tire rubber addition in the mechanical properties of polyester based polymer mortars (PM). The effect of different tire rubber fibre amounts (0.1, 0.4 and 0.5 wt.%) were analysed in this investigation. Plain polymer mortar was also prepared for comparison. Mechanical behaviour of both reinforced and plain polymer mortars formulations was assessed by flexural and compressive tests. Flexural and compressive strength improvements were particularly significant for PM trial formulation reinforced with the higher amount of tire rubber fibres. The observed trend on mechanical properties seems to indicate that higher increases could be achieved with higher amounts of tire rubber fibres. Thus, further experiments will be required in order to determine the critical amounts of rubber fibre reinforcement that define the turning points on material trend behaviour of PM.

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轮胎橡胶纤维增强聚酯聚合物砂浆力学性能分析
近年来,轮胎库存的增加带来了环境问题,轮胎的有效再利用已成为一个重要的研究课题。最近的欧洲法规禁止焚烧和填埋轮胎,并设定了几个回收目标。在这种情况下,轮胎橡胶回收物再利用到水泥和聚合物混凝土材料中,作为钢筋或骨料的替代品,最近受到了极大的关注。本研究的目的是分析轮胎橡胶添加剂对聚酯基聚合物砂浆力学性能的影响。分析了不同轮胎橡胶纤维掺量(0.1、0.4、0.5 wt.%)对轮胎性能的影响。并制备了普通聚合物砂浆进行对比。增强和普通聚合物砂浆配方的力学性能通过弯曲和压缩试验进行了评估。用较高量的轮胎橡胶纤维增强的PM试验配方,其抗折和抗压强度的提高尤为显著。观察到的机械性能趋势似乎表明,轮胎橡胶纤维用量越高,可以获得更高的提高。因此,需要进一步的实验来确定橡胶纤维增强的临界量,以确定PM材料趋势行为的转折点。
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PRINCIPAIS PARÂMETROS PARA PRODUÇÃO DE BIOGÁS A PARTIR DE DEJETOS SUÍNOS AGRICULTURA 4.0: estudo de caso sobre a eficiência da indústria 4.0 aplicada ao agronegócio CERTIFICAÇÃO DE SUSTENTABILIDADE DA AQUICULTURA: uma análise de mercado com consumidores PESQUISA SOBRE AS ESTRATÉGIAS DE MELHORIA CONTÍNUA E A IMPORTÂNCIA DA GESTÃO DA QUALIDADE COM O MÉTODO KAIZEN FATORES QUE AFETAM A FERMENTAÇÃO ALCOÓLICA
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