Department of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce, Italy.
Waste Manag. 2010 Jun;30(6):1101-6. doi: 10.1016/j.wasman.2010.01.030. Epub 2010 Feb 21.
An attempt to substitute in concrete the 5% by weight of fine aggregate (natural sand) with an equal weight of PET aggregates manufactured from the waste un-washed PET bottles (WPET), is presented. The WPET particles possessed a granulometry similar to that of the substituted sand. Specimens with different cement content and water/cement ratio were manufactured. Rheological characterization on fresh concrete and mechanical tests at the ages of 28 and 365days were performed on the WPET/concretes as well as on reference concretes containing only natural fine aggregate in order to investigate the influence of the substitution of WPET to the fine aggregate in concrete. It was found that the WPET concretes display similar workability characteristics, compressive strength and splitting tensile strength slightly lower that the reference concrete and a moderately higher ductility.
尝试用相同重量的由废弃未清洗的 PET 瓶制成的 PET 集料（WPET）替代混凝土中 5%重量的细集料（天然砂）。WPET 颗粒的粒度与替代砂的粒度相似。制作了不同水泥含量和水灰比的试件。对 WPET/混凝土以及仅含有天然细集料的参考混凝土进行了新拌混凝土的流变特性表征和 28 天和 365 天龄期的力学试验，以研究 WPET 替代细集料对混凝土的影响。结果发现，WPET 混凝土表现出相似的工作性能，抗压强度和劈裂抗拉强度略低于参考混凝土，而延性略高。
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