This study attempts to apply the concept of sustainability by reducing the environmental pollution of plastic waste, especially Polyethylene Terephthalate (PET) that are used in production soft drinks bottles. The plastic bottles were collected, roughened) Roughen the surface by using a metal clip after exposing it to heat, and then place it on smooth surfaces) and shredded into fibres of specific size and shape with an aspect ratio (L/D) of 34.5. Various proportions of PET (i.e. 0.5, 1.0, and 1.5%) have been used in the production of ordinary concrete. The influence of PET fibers on the properties of concrete was studied, such as workability, compressive and splitting tensile strengths. Furthermore, the shear characteristics of continuous reinforced concrete deep beams with dimensions of (1503002000) mm produced from such concrete were also investigated. For all percentage of replacements, The fresh property, compressive strength, and tensile strength of PET fibre encapsulated cement concrete were investigated. With the addition of plastic fibre, compressive strength increased marginally, but tensile strength measurements showed a substantial improvement over the control specimen. it has been found that there was an apparent impact of waste plastic fibers on the structural behavior of the investigated beams in terms of its brittleness. The increase in the ultimate load capacity With the increase in the percentage of fiber until a percentage(1%), then it begins to decrease after this percentage of continuous deep beams refers to the use of waste plastic fibers to improve the tensile properties of concrete and to limit the spread and width of cracks within the structure.

本研究试图通过减少塑料废物的环境污染来应用可持续性的概念，特别是用于生产软饮料瓶的聚对苯二甲酸乙二醇酯 (PET)。收集塑料瓶，粗糙）将其加热后用金属夹将表面粗糙，然后将其放在光滑的表面上）并切碎成长径比（L / D）为34.5的特定尺寸和形状的纤维. 不同比例的 PET（即 0.5、1.0 和 1.5%）已用于生产普通混凝土。研究了 PET 纤维对混凝土性能的影响，如和易性、抗压强度和劈裂抗拉强度。此外，还研究了由这种混凝土制成的尺寸为（1503002000）mm的连续钢筋混凝土深梁的剪切特性。对于所有替换百分比，研究了 PET 纤维包封水泥混凝土的新鲜性能、抗压强度和抗拉强度。随着塑料纤维的加入，压缩强度略有增加，但拉伸强度测量显示比对照样品有实质性的提高。已经发现废塑料纤维对所研究梁的结构行为在其脆性方面有明显的影响。极限承载能力的增加随着纤维百分比的增加直到一个百分比（1%），