State of the Art Review on the Properties of Sustainable Concrete Using Hybrid Fibers


Authors: Salim Khoso, Janet Raad, and Azadeh Parvin
Page Range: 37-52
Published in: International Journal of Energy, Environment, and Economics, Volume 30 Issue 1
ISSN: 1054-853X

Table of Contents


A wide variety of composite materials are being produced by several industries in the shape of sheets, structural profiles, sandwich panels, planks, reinforcing bars just to name a few. Among other fiber shapes, chopped fibers have been found more effective and quite suitable in improving the mechanical properties of concrete composites mixed with various recycled supplementary cementitious materials (SCMs) such as fly ash, silica fume and blast furnace slag generated by industrial waste. Utilization of such waste materials from industries can help in preparing sustainable and economical concrete along with fibers as strengthening materials. Since fibers and industrial waste are available in abundance and at a relatively lower cost, they can be easily incorporated into fresh and hardened concrete which could improve concrete properties such as compression, tension, flexure and shear,. Considering the availability of various fiber-reinforced materials and their effectiveness in concrete composite, an extensive review of the experimental work carried out by numerous studies has been presented in this article. Experimental techniques, parameters considered, and results of these investigations are discussed in detail. The presence of fibers delays the development of cracks and make the concrete more durable, whereas, the recycled or supplementary materials are beneficial in enhancing the overall concrete strength up to a considerable amount when compared to the traditional cement concrete.

Keywords: hybrid fibers, recycled concrete, sustainable concrete, mechanical properties, durability

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