Physical and mechanical properties of mortars containing PET and PC waste aggregates |
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| Authors: | Kinda Hannawi Siham Kamali-Bernard William Prince |
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| Affiliation: | 1. Department of Civil Engineering in College of Engineering, Ocean University of China, Qingdao 266100, PR China;2. Collaborative Innovation Center of Engineering Construction and Safety in Blue Economic Zone, Qingdao 266033, PR China;3. Qingdao Shundafeng Industry and Trade Co., Ltd., Qingdao 266000, PR China;1. Department of Transportation Engineering, School of Civil Engineering, Shandong University, Jinan 250061, China;2. Department of Construction Management and Engineering, College of Engineering and Architecture, North Dakota State University, Fargo, ND 58108, USA;1. University of Salerno, Department of Industrial Engineering, Via Giovanni Paolo II n. 132, 84084 Fisciano SA, Italy;2. University of Liège, ArGEnCo Department, Quartier Polytech 1, Allée de la découverte 9, B-4000 Liège, Belgium;1. Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;2. ICIST, Department of Civil Engineering, Architecture and Georresources, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;3. Department of Buildings, LNEC – National Laboratory of Civil Engineering, Av. do Brasil 101, 1700-066 Lisbon, Portugal;1. Department of Civil & Environmental Engineering, Islamic University of Technology, Gazipur 1704, Bangladesh;2. School of Engineering, University of British Columbia, 3333 University Way, EME 4222, Kelowna, BC V1V1VV7, Canada |
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| Abstract: | Non-biodegradable plastic aggregates made of polycarbonate (PC) and polyethylene terephthalate (PET) waste are used as partial replacement of natural aggregates in mortar. Various volume fractions of sand 3%, 10%, 20% and 50% are replaced by the same volume of plastic. This paper investigates the physical and mechanical properties of the obtained composites. The main results of this study show the feasibility of the reuse of PC and PET waste aggregates materials as partial volume substitutes for natural aggregates in cementitious materials. Despite of some drawbacks like a decrease in compressive strength, the use of PC and PET waste aggregates presents various advantages. A reduction of the specific weight of the cementitious materials and a significant improvement of their post-peak flexural behaviour are observed. The calculated flexural toughness factors increase significantly with increasing volume fraction of PET and PC-aggregates. Thus, addition of PC and PET plastic aggregates in cementitious materials seems to give good energy absorbing materials which is very interesting for several civil engineering applications like structures subjected to dynamic or impact efforts. The present study has shown quite encouraging results and opened new way for the recycling of PC waste aggregate in cement and concrete composites. |
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