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Mechanical properties of self-compacting geopolymer concrete containing spent garnet as replacement for fine aggregate

Mutashar, Habeeb Lateef and Hussin, Mohd. Warid and Mohd Ariffin, Mohd. Azreen and Mirza, Jahangir and Abdul Shukor Lim, Nor Hasanah and Shettima, Ali Umara (2017) Mechanical properties of self-compacting geopolymer concrete containing spent garnet as replacement for fine aggregate. Jurnal Teknologi, 79 (3). pp. 23-29. ISSN 0127-9696

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Official URL: http://dx.doi.org/10.11113/jt.v79.9957

Abstract

Millions of tons of spent garnet, a by-product of surface treatment operations, are disposed of in landfills, oceans, rivers, and quarries, among others every year, thus it causes environmental problems. The main objective of this study is to evaluate spent garnet as a sand replacement in concrete prepared with ground granulated blast furnace slag (GGBS)-based self-compacting geopolymer concrete (SCGC). Concrete mixtures containing 0%, 25%, 50%, 75% and 100% spent garnet as a replacement for river sand were prepared with a constant Liquid/Binder (L/B) mass ratio equal to 0.4. Compressive, flexural and splitting tensile strengths as well as workability tests (slump, L-box, U-box and T50) were conducted on concrete containing spent garnet. As per specification and guidelines for self-compacting concrete (EFNARC) standard, the test results showed that the concrete’s workability increased with the increase of spent garnet, while all the other strength values were consistently lower than conventional concrete (SCGC) at all stages of replacement. The results recommended that spent garnet should be used in concrete as a sand replacement up to 25% to reduce environmental problems, costs and the depletion of natural resources.

Item Type:Article
Additional Information:RADIS System Ref No:PB/2017/11350
Uncontrolled Keywords:spent garnet, Geopolymer concrete
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Advanced Informatics School
ID Code:66308
Deposited By: Fazli Masari
Deposited On:30 Nov 2017 01:03
Last Modified:30 Nov 2017 01:03

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