Nowadays, the Polyethylene Terephthalate (PET) bottle, which is a post-consumer product, has generated a strong interest in the environmental consequences that surround it, and a suitable alternative is to incorporate it in mortar and concrete. Therefore, the aim of this research was to evaluate rendering mortars based on Portland cement/hydrated lime produced with PET bottle waste, used to partially replace 2.5%, 5%, 10%, 15% and 20% (by volume) of the fine aggregate in order to investigate the effectiveness and the improvement of these materials. The experimental program was performed in the fresh and hardened states, to determine flowability, fresh and hardened densities, air content, apparent porosity, water absorption by immersion, water retention, water absorption by capillarity, drying, water vapor permeability, ultrasonic wave velocity, and dynamic modulus of elasticity. Also, scanning electron microscopy (SEM) was performed. Generally, the results showed that the incorporation of PET significantly changed some properties, as verified by statistical analysis. Remarkable results from the incorporation of PET into rendering mortars based on Portland cement/hydrated lime are: close to 90% similarity of water retention between the mixtures, water absorption due to capillarity of M_2.5 at 1.89 kg/(m²·min^1/2), drying of the M₁₅ specimen at 5.85 kg/m², water vapor permeability of the M₂₀ at 41.15 (ng/(m·s·Pa)) and the dynamic modulus of elasticity of M_2.5 at 3.57 GPa. These replacements showed the possibility of mitigating the environmental impacts that the PET bottle life cycle can have and the extraction of the fine aggregate, promoting another possibility of disposal for this waste.

如今，作为消费后产品的聚对苯二甲酸乙二酯（PET）瓶引起了人们对其周围环境后果的浓厚兴趣，一种合适的替代方法是将其掺入砂浆和混凝土中。因此，本研究的目的是基于用PET瓶废料生产的硅酸盐水泥/熟石灰评估抹灰砂浆，该抹灰砂浆可部分替代2.5％，5％，10％，15％和20％（按体积计）的细粉。汇总以调查这些材料的有效性和改进。在新鲜和硬化状态下执行该实验程序，以确定流动性，新鲜和硬化密度，空气含量，表观孔隙率，浸入后吸水率，保水率，毛细作用吸水率，干燥，水蒸气渗透率，超声波速度，和动态弹性模量。另外，进行扫描电子显微镜（SEM）。通常，结果表明，PET的掺入显着改变了某些性能，如通过统计分析所证实的。在基于波特兰水泥/熟石灰的抹灰砂浆中掺入PET的显着结果是：混合物之间的保水率相似度接近90％，由于M的毛细作用而吸水_2.5在1.89 kg /（m ² ·min ^1/2）下干燥，M ₁₅样品在5.85 kg / m ²处干燥，M ₂₀在41.15（ng /（m·s·Pa））下的水蒸气透过率，在3.57 GPa时M _2.5的动态弹性模量。这些替代品显示出有可能减轻PET瓶生命周期可能带来的环境影响以及细粒集料的提取，从而增加了处置此类废物的另一种可能性。