High performance concrete utilizing metakaolin and spent garnet

This study deals on the utilization of metakaolin and spent garnet as part of cementitious and fine aggregates replacement in high performance concrete (HPC). HPC offers many benefits especially towards application of structures which sustain higher loads and exposed to harsh environment at the same...

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Main Author:	Ahmad Shukri, Nazirah
Format:	Thesis
Language:	English
Published:	2020
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/92209/1/NazirahAhmadShukriMSKA2020.pdf
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id	my-utm-ep.92209
record_format	uketd_dc
spelling	my-utm-ep.922092021-08-30T05:10:14Z High performance concrete utilizing metakaolin and spent garnet 2020 Ahmad Shukri, Nazirah TA Engineering (General). Civil engineering (General) This study deals on the utilization of metakaolin and spent garnet as part of cementitious and fine aggregates replacement in high performance concrete (HPC). HPC offers many benefits especially towards application of structures which sustain higher loads and exposed to harsh environment at the same time such as piers. HPC usually been produced by applying supplementary cementitious material as an admixture to enhance the quality of HPC. Metakaolin is known as one of the common material that has been proven to produce good qualities of HPC. Spent garnet is one of the industrial waste materials which had been recognized as suitable fine aggregates substitution in concrete. Apart from sand mining issue which had been highlighted, excessive amount of spent garnet in the landfill had also seems to jeopardize the environment. Thus, the study on the utilization of spent garnet and metakaolin in producing HPC is performed. Physical properties test of the materials had been conducted and trial mixes had been executed afterwards with replacement of spent garnet in percentage amount of 10%, 20%, 30%, 40%, 50% and 60% by weight. The workability test results showed that at the replacement of 60%, the fresh concrete bled. Compressive strength, flexural strength, splitting tensile strength and modulus of elasticity tests were carried out to determine mechanical properties of the mix proportion. The morphology of the HPC was identified by completing Scanning Electron Microscope (SEM) with Energy Dispersive X-Ray Analysis (EDX) and XRay Diffraction Analysis Test (XRD). The durability test was conducted to observe the resistance of HPCM and HPCMG50 towards chloride penetration and elevated temperature test. HPC with 50% of spent garnet replacement (HPCMG50) indicated the highest value of compressive strength with 92.3 MPa as compared to 65.4 MPa for HPC without any spent garnet replacement (HPCM). As conclusion, this study found that 50% utilization of spent garnet is effective in producing HPC with better mechanical properties and chloride resistance. Hence utilization of 50% of spent garnet as fine aggregates replacement is a good approach in fighting the issue of sand deficit as well as betterment of landfill management. 2020 Thesis http://eprints.utm.my/id/eprint/92209/ http://eprints.utm.my/id/eprint/92209/1/NazirahAhmadShukriMSKA2020.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:138743 masters Universiti Teknologi Malaysia, Faculty of Engineering - School of Civil Engineering Faculty of Engineering - School of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Ahmad Shukri, Nazirah High performance concrete utilizing metakaolin and spent garnet
description	This study deals on the utilization of metakaolin and spent garnet as part of cementitious and fine aggregates replacement in high performance concrete (HPC). HPC offers many benefits especially towards application of structures which sustain higher loads and exposed to harsh environment at the same time such as piers. HPC usually been produced by applying supplementary cementitious material as an admixture to enhance the quality of HPC. Metakaolin is known as one of the common material that has been proven to produce good qualities of HPC. Spent garnet is one of the industrial waste materials which had been recognized as suitable fine aggregates substitution in concrete. Apart from sand mining issue which had been highlighted, excessive amount of spent garnet in the landfill had also seems to jeopardize the environment. Thus, the study on the utilization of spent garnet and metakaolin in producing HPC is performed. Physical properties test of the materials had been conducted and trial mixes had been executed afterwards with replacement of spent garnet in percentage amount of 10%, 20%, 30%, 40%, 50% and 60% by weight. The workability test results showed that at the replacement of 60%, the fresh concrete bled. Compressive strength, flexural strength, splitting tensile strength and modulus of elasticity tests were carried out to determine mechanical properties of the mix proportion. The morphology of the HPC was identified by completing Scanning Electron Microscope (SEM) with Energy Dispersive X-Ray Analysis (EDX) and XRay Diffraction Analysis Test (XRD). The durability test was conducted to observe the resistance of HPCM and HPCMG50 towards chloride penetration and elevated temperature test. HPC with 50% of spent garnet replacement (HPCMG50) indicated the highest value of compressive strength with 92.3 MPa as compared to 65.4 MPa for HPC without any spent garnet replacement (HPCM). As conclusion, this study found that 50% utilization of spent garnet is effective in producing HPC with better mechanical properties and chloride resistance. Hence utilization of 50% of spent garnet as fine aggregates replacement is a good approach in fighting the issue of sand deficit as well as betterment of landfill management.
format	Thesis
qualification_level	Master's degree
author	Ahmad Shukri, Nazirah
author_facet	Ahmad Shukri, Nazirah
author_sort	Ahmad Shukri, Nazirah
title	High performance concrete utilizing metakaolin and spent garnet
title_short	High performance concrete utilizing metakaolin and spent garnet
title_full	High performance concrete utilizing metakaolin and spent garnet
title_fullStr	High performance concrete utilizing metakaolin and spent garnet
title_full_unstemmed	High performance concrete utilizing metakaolin and spent garnet
title_sort	high performance concrete utilizing metakaolin and spent garnet
granting_institution	Universiti Teknologi Malaysia, Faculty of Engineering - School of Civil Engineering
granting_department	Faculty of Engineering - School of Civil Engineering
publishDate	2020
url	http://eprints.utm.my/id/eprint/92209/1/NazirahAhmadShukriMSKA2020.pdf
_version_	1747818579659587584

High performance concrete utilizing metakaolin and spent garnet

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