Journal ArticleDOI
Recycling of landfill wastes (tyres, plastics and glass) in construction - A review on global waste generation, performance, application and future opportunities
Wahid Ferdous,Allan Manalo,Rafat Siddique,Priyan Mendis,Yan Zhuge,Hong S. Wong,Weena Lokuge,Thiru Aravinthan,Peter Schubel +8 more
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TLDR
In this article, the authors reviewed three of the largest volume of landfill waste materials (tyres, plastics and glass) that are becoming a major concern for many countries and highlighted future strategies for improved waste management, potential investment and research directions.Abstract:
The world is moving towards a circular economy that focuses on reducing wastes and keeping materials in use for the longest time possible. This paper critically reviewed three of the largest volume of landfill waste materials (tyres, plastics and glass) that are becoming a major concern for many countries. At present, crumb rubbers (from tyres) and glass sands (from crushed waste glass) are being used in concrete and road constructions while plastics are often used in manufacturing civil structures. However, only 10% tyres, 19.5% plastics and 21% glass are currently recycled globally. The massive volume of remaining unused wastes goes to landfill creating environmental problems. Therefore, finding new strategies of utilising these landfill wastes is vital. The global and country specific production, recycling and landfilling rates of these waste are summarised to understand the present situation of global waste crisis. Future strategies for improved waste management, potential investment and research directions are highlighted. New options for recycling wastes tyres, plastics and glass in construction are also presented to provide practical and economical solutions to extract maximum value and ensure their continued use in a closed loop system.read more
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Journal ArticleDOI
Natural Fibers as an Alternative to Synthetic Fibers in Reinforcement of Geopolymer Matrices: A Comparative Review.
Afonso Rangel Garcez de Azevedo,Ariana S. A. Cruz,Markssuel Teixeira Marvila,Leandro Barbosa de Oliveira,Sergio Neves Monteiro,Carlos Maurício Fontes Vieira,Roman Fediuk,Roman Timokhin,Nikolai Vatin,Marina Daironas +9 more
TL;DR: In this article, the behavior of fibers in geopolymer matrices has been analyzed and compared with natural and synthetic fibers, identifying similarities and differences between the performance of these composites.
Journal ArticleDOI
Possibilities for the application of agro-industrial wastes in cementitious materials: A brief review of the Brazilian perspective
Afonso R. G. de Azevedo,Mohamed Amin,Marijana Hadzima-Nyarko,Ibrahim Saad Agwa,Abdullah M. Zeyad,Bassam A. Tayeh,Adeyemi Adesina +6 more
TL;DR: In this article , the authors discuss the recent advances, challenges and future perspective of the application of some solid agro-industrial wastes generated specifically in Brazil and some other parts of the world in cementitious materials.
Journal ArticleDOI
Recent trends in recycling and reusing techniques of different plastic polymers and their composite materials
TL;DR: In this paper , the authors highlight some recent recycling and reusing techniques adopted for plastics and their composite materials and conclude that the composite materials consumption in different industries would only be justified when recycling and reuse of composites should be given equal consideration.
Journal ArticleDOI
A brief review on fabrication and application of porous materials from silicon-rich industrial solid waste
TL;DR: In this article, a mini review of the processing and application of porous silicon materials with respect to the physical and chemical properties of the industrial solid wastes (SRISW) is presented.
References
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Journal ArticleDOI
Plastic waste inputs from land into the ocean
Jenna Jambeck,Roland Geyer,Chris Wilcox,Theodore R. Siegler,Miriam E. Perryman,Anthony L. Andrady,Ramani Narayan,Kara Lavender Law +7 more
TL;DR: This work combines available data on solid waste with a model that uses population density and economic status to estimate the amount of land-based plastic waste entering the ocean, which is estimated to be 275 million metric tons.
Supplementary Materials for Plastic waste inputs from land into the ocean
Jenna Jambeck,Roland Geyer,Chris Wilcox,Theodore R. Siegler,Anthony L. Andrady,Ramani Narayan,Kara Lavender Law +6 more
Journal ArticleDOI
A comprehensive review on the applications of coal fly ash
TL;DR: In this paper, the authors present a review of coal fly ash at the global level, focusing on its current and potential applications, including use in the soil amelioration, construction industry, ceramic industry, catalysis, depth separation, zeolite synthesis, etc.
Journal ArticleDOI
Use of recycled plastic in concrete: A review
TL;DR: The effect of recycled and waste plastic on bulk density, air content, workability, compressive strength, splitting tensile strength, modulus of elasticity, impact resistance, permeability, and abrasion resistance is discussed in this paper.
Journal ArticleDOI
Properties of concrete containing scrap-tire rubber--an overview.
Rafat Siddique,Tarun R. Naik +1 more
TL;DR: An overview of some of the research published regarding the use of scrap-tires in portland cement concrete and the benefits of using magnesium oxychloride cement as a binder for rubberized concrete mixtures are presented.