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Open AccessArticle

Utilization of Water-Cooled and Air-Cooled Slag Aggregate in Concrete: A Solution to the Secular Economy

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Structural Engineering Department, Faculty of Engineering, German University in Cairo, Cairo 11835, Egypt
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Civil Engineering, Department Faculty of Engineering, Cairo University, Cairo 12613, Egypt
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Civil Engineering Department, National Research Centre, Cairo 12622, Egypt
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Civil Engineering Department, Faculty of Engineering, Ain Shams University, Cairo 11566, Egypt
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Department of Civil Engineering, School of Architecture, Design and the Built Environment, Nottingham Trent University, Nottingham NG1 4FQ, UK
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Authors to whom correspondence should be addressed.
Eng 2020, 1(1), 48-59; https://doi.org/10.3390/eng1010004
Received: 24 August 2020 / Revised: 1 September 2020 / Accepted: 16 September 2020 / Published: 21 September 2020
(This article belongs to the Special Issue Advanced Research in Hydraulics and Water Engineering)
Aggregates are generally thought of as inert filler within a concrete mix, and a typical concrete mix is comprised of as much as 70–80% of them. They play an essential role in the properties of both fresh and hardened concrete. Nowadays, scientists are aiming to use waste materials, thereby replacing natural aggregates for economic and environmental considerations. This study investigates the effect of the utilization of steel slag by-product aggregates (air- and water-cooled slag) as concrete aggregates on the behavior characteristics of concrete. Various concrete mixtures, with different levels of replacement of slag aggregate (50, 75, and 100%), were conducted in order to find the optimum percentages to improve the microstructure and different properties of concrete (fresh and hardened). The results showed that increasing the fine aggregate replacement percentage led to a decrease in compressive strength values, in contrast with coarse aggregate replaced with slag aggregate. The steel slag aggregates showed potential to be used as replacement for natural aggregate with comparable compressive strength and acceptable workability. View Full-Text
Keywords: waste management; water-cooled slag (WCS); air-cooled slag (ACS); slump; compressive strength; tensile strength waste management; water-cooled slag (WCS); air-cooled slag (ACS); slump; compressive strength; tensile strength
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MDPI and ACS Style

El-Tair, A.M.; Bakheet, R.; El-Feky, M.S.; Kohail, M.; Akib, S. Utilization of Water-Cooled and Air-Cooled Slag Aggregate in Concrete: A Solution to the Secular Economy. Eng 2020, 1, 48-59. https://doi.org/10.3390/eng1010004

AMA Style

El-Tair AM, Bakheet R, El-Feky MS, Kohail M, Akib S. Utilization of Water-Cooled and Air-Cooled Slag Aggregate in Concrete: A Solution to the Secular Economy. Eng. 2020; 1(1):48-59. https://doi.org/10.3390/eng1010004

Chicago/Turabian Style

El-Tair, Ahmed M.; Bakheet, Ramez; El-Feky, Mohamed S.; Kohail, Mohamed; Akib, Shatirah. 2020. "Utilization of Water-Cooled and Air-Cooled Slag Aggregate in Concrete: A Solution to the Secular Economy" Eng 1, no. 1: 48-59. https://doi.org/10.3390/eng1010004

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