Mechanical Properties and Durability of PET waste Aggregates in Roof Tiles Production.

O. OmosebiTaiwo, N. Abas
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引用次数: 1

Abstract

Managing plastic waste is a global challenge that challenges the protection of our ecosystem due to its high rate of generation and its non-biodegradability. PWs must, however, be carefully handled to mitigate the emissions involved with their incineration and dumping into landfills. Plastic waste can be recycled into new usable building materials. In this analysis, shredded PET waste aggregate from a recycling center was heated at 230 0C and used as a binding aggregate incomplete replacement of cement with river sand to produce floor tiles. The properties of the aggregate materials and roof tiles (including their distribution of particle size, silt, clay and dust content, relative density, water absorption, porosity, flexural and compressive strength) were tested on different PET waste: sand mixing ratio, 100%, 90%, 70%, 50%, and 30%. Results revealed that the tiles produced by 30% PET and 70% river sand (3:7) achieved higher density, flexural and compressive strength than the other percentages of the mixture. The compressive strength of the tiles produced with 30 percent PET waste composition was greater than that of cement concrete (at 28 days of curing) for residential buildings. As a result of this low water absorption and eco-friendliness, PET waste can be used for roof tiles at 30 percent PET substitution based on the test results.
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PET废骨料在屋面瓦生产中的力学性能和耐久性。
由于塑料垃圾的高产生率和不可生物降解性,管理塑料垃圾是一项全球性挑战,对保护我们的生态系统构成了挑战。然而,污水处理厂必须小心处理,以减少其焚烧和倾倒到堆填区的排放。塑料垃圾可以回收利用,制成新的可用建筑材料。在本分析中,将回收中心的PET废骨料切碎,在230℃下加热,作为粘结骨料,用河砂代替水泥生产地砖。测试了不同掺砂比、100%、90%、70%、50%和30%的PET废料对骨料和屋面瓦的性能(包括粒径分布、粉砂、粘土和粉尘含量、相对密度、吸水率、孔隙率、抗折和抗压强度)的影响。结果表明,由30% PET和70%河砂(3:7)混合而成的瓷砖比其他比例的混合料具有更高的密度、抗折和抗压强度。用30% PET废料制成的瓦片抗压强度高于水泥混凝土(养护28天)。由于这种低吸水率和环保性,根据测试结果,PET废物可以以30%的PET替代品用于屋顶瓦片。
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