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Influence of recycled polyethylene terephthalate fibres on plastic shrinkage and mechanical properties of concrete

Frontiers of Structural and Civil Engineering 2022年第6期16卷 792-802页

作者： NecatÖZAŞIK Özgür EREN Department of Civil Engineering Eastern Mediterranean UniversityMersin 99628Turkey

Polyethylene terephthalate bottles production has drastically increased year after year due to high versatility of polyethylene terephthalate plastics and considerable consumption of *** tandem with that increase,the major concern of society has been the improper disposal of this non-biodegradable material to the *** deal with this concern,recycled polyethylene terephthalate bottles were incorporated in concrete as fibre reinforcements in this *** objective of this research is to evaluate the mechanical properties of recycled polyethylene terephthalate fibre reinforced concrete(RPFRC)in comparison with control concrete without *** terephthalate fibres with three different diameters(0.45,0.65,and 1.0 mm)and two lengths(20 and 30 mm)were added at various proportions(0.5%,1.0%,1.5%and 2.0%)by volume of concrete in order to determine the effect of fibres initially on compressive,flexural and splitting tensile strengths of *** results revealed that none of the fibres have detrimental effects up to 1%volume fraction,however further addition caused slight reductions on mechanical properties in some *** shrinkage resistance and impact resistance tests were also performed according to related *** terephthalate fibres were observed to have marked improvements on those *** a good performance could be attributed primarily to the bridging effect of fibres.

关键词： recycled PET fibre-reinforced concrete mechanical properties plastic shrinkage impact energy

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