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Advances in Concrete Construction
  Volume 9, Number 5, May 2020 , pages 479-489

Application of various types of recycled waste materials in concrete constructions
Seyed Azim Hosseini

    Studies have proved that the mechanical properties of concrete, suddenly is dropped off with employing waste materials as replacements. The effectiveness of fibre addition on the structural stability of concrete has been indicated in recent investigations. There are different waste aggregates and fibres as plastic, rubber tire, coconut, and other natural wastes, which have been evaluated throughout the last decades. The fibres incorporation has a substantial effect on the properties of concrete mix subjected to different loading scenarios. This paper has reviewed different types of wastes and the effect of typical fibres including Poly Ethylene Terephthalate (PET), rubber tire, and waste glass. Furthermore, waste plastic and waste rubber has been especially studied in this review. Although concretes containing PET fibre revealed a reduction in compressive strength at low fibre fractions, using PET is resulted to micro-cracking decrement and increasing flexibility and flexural strength. Finally, according to the reviews, the conventional waste fibres are well-suited to mitigated time-induced damages of concrete and waste fibres and aggregates could be a reliable replacement for concrete.
Key Words
    recycled waste materials; rubber tire; waste plastic; waste rubber; Poly Ethylene Terephthalate
Seyed Azim Hosseini: Department of Civil Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran

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