Polyethylene terephthalate bottles production has drastically increased year after year due to high versatility of polyethylene terephthalate plastics and considerable consumption of beverages. In tandem with that increase, the major concern of society has been the improper disposal of this non-biodegradable material to the environment. To deal with this concern, recycled polyethylene terephthalate bottles were incorporated in concrete as fibre reinforcements in this study. The objective of this research is to evaluate the mechanical properties of recycled polyethylene terephthalate fibre reinforced concrete (RPFRC) in comparison with control concrete without fibres. polyethylene terephthalate fibres with three different diameters (0.45, 0.65, and 1.0 mm) and two lengths (20 and 30 mm) were added at various proportions (0.5%, 1.0%, 1.5% and 2.0%) by volume of concrete in order to determine the effect of fibres initially on compressive, flexural and splitting tensile strengths of concrete. The results revealed that none of the fibres have detrimental effects up to 1 % volume fraction, however further addition caused slight reductions on mechanical properties in some conditions. Plastic shrinkage resistance and impact resistance tests were also performed according to related standards. Polyethylene terephthalate fibres were observed to have marked improvements on those properties. Such a good performance could be attributed primarily to the bridging effect of fibres.

由于聚对苯二甲酸乙二酯塑料的多功能性和饮料的大量消耗，聚对苯二甲酸乙二酯瓶的产量逐年大幅增加。随着这种增长，社会的主要关注点是这种不可生物降解的材料对环境的不当处置。为了解决这个问题，本研究将回收的聚对苯二甲酸乙二醇酯瓶作为纤维增强材料加入混凝土中。本研究的目的是评估再生聚对苯二甲酸乙二醇酯纤维增强混凝土 (RPFRC) 与不含纤维的对照混凝土的机械性能。以不同比例（0.5%、1.0%、1.5% 和 2.5%）添加三种不同直径（0.45、0.65 和 1.0 毫米）和两种长度（20 和 30 毫米）的聚对苯二甲酸乙二醇酯纤维。0%) 按混凝土的体积计算，以确定纤维最初对混凝土的抗压、抗弯和劈裂抗拉强度的影响。结果表明，在体积分数高达 1% 的情况下，没有一种纤维会产生不利影响，但是在某些条件下，进一步添加会导致机械性能略有下降。还按照相关标准进行了抗塑性收缩和抗冲击试验。观察到聚对苯二甲酸乙二醇酯纤维在这些性能上具有显着改进。这种良好的性能主要归功于纤维的架桥效应。结果表明，在体积分数高达 1% 的情况下，没有一种纤维会产生不利影响，但是在某些条件下，进一步添加会导致机械性能略有下降。还按照相关标准进行了抗塑性收缩和抗冲击试验。观察到聚对苯二甲酸乙二醇酯纤维在这些性能上具有显着改进。这种良好的性能主要归功于纤维的架桥效应。结果表明，在体积分数高达 1% 的情况下，没有一种纤维会产生不利影响，但是在某些条件下，进一步添加会导致机械性能略有下降。还按照相关标准进行了抗塑性收缩和抗冲击试验。观察到聚对苯二甲酸乙二醇酯纤维在这些性能上具有显着改进。这种良好的性能主要归功于纤维的架桥效应。