Physical and Mechanical Properties of Concrete Containing PVC Waste as Aggregate
The global annual production of plastics rose sharply from 1.5 up to 359 million tons during the period between the years 1950 and 2018. A large proportion of plastic products and goods, such as bottles of water and soda, food packaging, etc., are thrown
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STO-MB, Oran, Algeria [email protected] 2 Istanbul Technical University, Civil Engineering Faculty, Maslak, Istanbul, Turkey 3 Civil Engineering Department, University of Mascara, Mascara, Algeria 4 Laboratory Lab-Mat, ENPO Maurice Audin, Oran, Algeria
Abstract. The global annual production of plastics rose sharply from 1.5 up to 359 million tons during the period between the years 1950 and 2018. A large proportion of plastic products and goods, such as bottles of water and soda, food packaging, etc., are thrown away right after their first use, causing the generation of considerable amounts of post-consumer plastic waste. Reusing solid plastic wastes to produce other innovative materials, such as recycled plastic aggregate concrete, is considered as one of the most economical and cost-effective alternatives. This work is part of an ambitious sustainable development program. For this purpose, PVC waste is used in the form of aggregates (sand 0/3 and coarse aggregate 3/8) in the preparation of a number of concrete specimens. These plastic aggregates were used as partial replacement of natural aggregates at the following substitution rates: 25%, 50% and 75%. The experimental results obtained indicate that there is a difference between the physical and mechanical properties of plastic wastes-based concretes and those containing natural aggregates. The use of plastic aggregates in concrete improves the thermal insulation of concrete which can be considered as part of a construction solution, to improve a building’s thermal efficiency. Keywords: PVC wastes aggregate · Lightweight concrete · Waste valorization · Thermal insulation
1 Introduction Plastics have been increasingly used, since their development in the 1930s and particularly between the years 1950 and 2018. The global annual production of plastics rose sharply from 1.5 up to 359 million tons during that period (www.statista.com). Nowadays, a large proportion of plastic products and goods, such as bottles of water and soda, food packaging, etc., are thrown away right after their first use, causing the generation of considerable amounts of post-consumer plastic waste. The production of this type of waste is still going to increase in the future. In fact, it has been estimated that the annual production of plastic wastes doubles every 10 years (Iadav 2008). Although many © Springer Nature Switzerland AG 2020 B. Safi et al. (Eds.): ISMSD 2019, Proceedings of the 4th International Symposium on Materials and Sustainable Development, pp. 48–56, 2020. https://doi.org/10.1007/978-3-030-43211-9_5
Physical and Mechanical Properties of Concrete Containing PVC Waste
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recycling opportunities are available today, reusing solid plastic wastes to produce other innovative materials, such as recycled plastic aggregate concrete, is considered as one of the most economical and cost-effective alternatives (Saikia and de Brito 2014). Several researchers have addressed the technical viability of incorporating selected plastic wastes into concrete; they also stud
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