Behavior of concrete incorporating waste plastic as fine aggregate subjected to compression, impact load and bond resistance

Date of publication 10 August 2020

Authors Hama, Sheelan Mahmoud.

Sources European Journal of Environmental and Civil Engineering :

DOILink https://doi.org/10.1080/19648189.2020.1798287

Abstract

This experimental investigates presents the use of three types of plastic wastes as fine aggregates in concrete as an effective way to deal with the scarcity of natural aggregate and problems related to disposal of plastic. This work emphasises on using plastic waste from different source such as water drink bottle, compact disk, and plastic cover of water drink bottle to substitute fine aggregate partially. This research investigates the performance of concrete subjected to compression and impact loading besides to bond strength for the following plastic percentages: 0% (reference), 10%, 15%, 20% and 25% as partial substitution. The results show that fine plastic aggregate reduce compressive strength and modulus of elasticity of concrete and the specimens were suffered from more deformations before failure under compression and impact loads comparing with control specimen. In addition, the bonding strength between concrete and steel reinforcement decreased with increasing of plastic content especially the one with bigger particle size one.

TSC Opinion

Voici un de nos sujets favoris dans la veille bibliographique. On aurait pu le classer dans éco-conception, mais je réserve cette rubrique aux matériaux qui apportent vraiment une valeur ajoutée dans leur formulation. Ceci n’est pas le cas pour l’incorporation des plastiques ou des déchets plastiques dans les ciments, cette approche a toujours été utilisée pour tenter de minimiser la quantité de déchets ultimes de différentes industries que ce soient les farines animales, les déchets faiblement radioactifs, les déchets riches en métaux lourds et maintenant les déchets plastiques. À chaque fois le même modèle est mis en place : inactivation temporaire de la toxicité et aux générations futures de savoir comment gérer la fin de vie de ces matériaux…

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