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Mechanical properties of geopolymer concrete by using fly ash as cement replacement

Norhalim, Arnie Farhana and Mustafa, Muhamad Farid and Shahidan, Shahiron (2018) Mechanical properties of geopolymer concrete by using fly ash as cement replacement. In: Concrete Technology: Research and Applications. Penerbit UTHM, UTHM, pp. 1-13. ISBN 978-967-2116-34-6

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Abstract

Since the early 1900, engineers and materials technologist has involve in optimizing the concrete strength, though concrete has been used throughout history as a building material. With each successive development and corresponding strength increase, the definition of “high strength” was revised. According to the American Concrete Institute, high strength is defined as a concrete that has over 42MPa compressive strength. A versatile material, high strength concrete possess desirable properties other than high strength. This paper is to succinctly review the mechanical properties of geopolymer concrete. It includes the compressive strength, flexural and tensile strength. In order to obtain its mechanical properties of high strength concrete, the optimum mix must be identified and analyzed too. Taking into account the growing environmental problem of carbon dioxide emissions from the cement industry, this paper is focusing on using fly ash as the geopolymer material as the cement replacement. Instead of using Ordinary Portland Cement (OPC) as the binder, geopolymer paste can be used as the binder constituent. Geopolymer paste is highly recommended in the concrete production application as it is able to harden in 24 hours period and it has lower cost than OPC.

Item Type: Book Section
Uncontrolled Keywords: High strength; geopolymer; mechanical properties; replacement; ratio of aggregate per binder.
Subjects: T Technology > T Technology (General)
Divisions: Faculty of Civil and Environmental Engineering > Department of Structural and Material Engineering
Depositing User: Mr Abdul Rahim Mat Radzuan
Date Deposited: 02 Mar 2020 03:48
Last Modified: 02 Mar 2020 03:48
URI: http://eprints.uthm.edu.my/id/eprint/12734
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