The potentials of pennisetum purpureum ash as cement replacement material

Cement production requires non-renewable natural resources that will be depleted in coming years. An alternative needs to be found to promote sustainable development for the construction industry. Therefore, this study introduced Pennisetum Purpureum ash (PPA) as a natural pozzolan. Limited infor...

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Main Author:	Nik Pa, Nik Nadia Amira
Format:	Thesis
Language:	English English English
Published:	2019
Subjects:	TA401-492 Materials of engineering and construction Mechanics of materials
Online Access:	http://eprints.uthm.edu.my/614/1/24p%20NIK%20NADIA%20AMIRA%20NIK%20PA.pdf http://eprints.uthm.edu.my/614/2/NIK%20NADIA%20AMIRA%20NIK%20PA%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/614/3/NIK%20NADIA%20AMIRA%20NIK%20PA%20WATERMARK.pdf
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spelling	my-uthm-ep.6142021-08-11T04:24:56Z The potentials of pennisetum purpureum ash as cement replacement material 2019-08 Nik Pa, Nik Nadia Amira TA401-492 Materials of engineering and construction. Mechanics of materials Cement production requires non-renewable natural resources that will be depleted in coming years. An alternative needs to be found to promote sustainable development for the construction industry. Therefore, this study introduced Pennisetum Purpureum ash (PPA) as a natural pozzolan. Limited information was published on the influence of PPA particle size in cement products. Therefore, this study investigated the physical and chemical properties of PPA as a cement replacement material and the effects of particle sizes of PPA with different replacement percentages on compressive strength and water absorption of cement mortar. The morphology of mortar containing PPA was also analysed. The PPA was prepared through controlled burning and grinding process before going through particle size analysis, XRF and SEM. The PPA used were ground for 1 hour (1H-PPA), 3 hours (3H-PPA) and 6 hours (6H-PPA) while the percentage of replacement in mortar were 5%, 10%, 15%, and 20%. The mortar was cured for 3, 7 and 28 days for mechanical properties characterisation. It was found that the particle size of PPA decreased as the time of grinding increased, which also increased the surface area. The particle size for 1HPPA, 3H-PPA and 6H-PPA were 9.30μm, 10.25μm and 10.58μm respectively. The total reactive oxides for 1H-PPA, 3H-PPA and 6H-PPA were 38%, 37% and 41.1% respectively while the loss on ignition were above 5%. As a conclusion, the grinding process degraded the honeycomb-like PPA structure into smaller particle size with highly irregular shape but in better dispersion. The 15% replacement of 6H-PPA mortar at 28 days showed the significant performance (30.07 N/mm2 of strength) with increment strength by 43.74% compared to control mortar with the lowest water absorption rate of 8.2%. 2019-08 Thesis http://eprints.uthm.edu.my/614/ http://eprints.uthm.edu.my/614/1/24p%20NIK%20NADIA%20AMIRA%20NIK%20PA.pdf text en public http://eprints.uthm.edu.my/614/2/NIK%20NADIA%20AMIRA%20NIK%20PA%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/614/3/NIK%20NADIA%20AMIRA%20NIK%20PA%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Awam dan Alam Bina
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TA401-492 Materials of engineering and construction Mechanics of materials
spellingShingle	TA401-492 Materials of engineering and construction Mechanics of materials Nik Pa, Nik Nadia Amira The potentials of pennisetum purpureum ash as cement replacement material
description	Cement production requires non-renewable natural resources that will be depleted in coming years. An alternative needs to be found to promote sustainable development for the construction industry. Therefore, this study introduced Pennisetum Purpureum ash (PPA) as a natural pozzolan. Limited information was published on the influence of PPA particle size in cement products. Therefore, this study investigated the physical and chemical properties of PPA as a cement replacement material and the effects of particle sizes of PPA with different replacement percentages on compressive strength and water absorption of cement mortar. The morphology of mortar containing PPA was also analysed. The PPA was prepared through controlled burning and grinding process before going through particle size analysis, XRF and SEM. The PPA used were ground for 1 hour (1H-PPA), 3 hours (3H-PPA) and 6 hours (6H-PPA) while the percentage of replacement in mortar were 5%, 10%, 15%, and 20%. The mortar was cured for 3, 7 and 28 days for mechanical properties characterisation. It was found that the particle size of PPA decreased as the time of grinding increased, which also increased the surface area. The particle size for 1HPPA, 3H-PPA and 6H-PPA were 9.30μm, 10.25μm and 10.58μm respectively. The total reactive oxides for 1H-PPA, 3H-PPA and 6H-PPA were 38%, 37% and 41.1% respectively while the loss on ignition were above 5%. As a conclusion, the grinding process degraded the honeycomb-like PPA structure into smaller particle size with highly irregular shape but in better dispersion. The 15% replacement of 6H-PPA mortar at 28 days showed the significant performance (30.07 N/mm2 of strength) with increment strength by 43.74% compared to control mortar with the lowest water absorption rate of 8.2%.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Nik Pa, Nik Nadia Amira
author_facet	Nik Pa, Nik Nadia Amira
author_sort	Nik Pa, Nik Nadia Amira
title	The potentials of pennisetum purpureum ash as cement replacement material
title_short	The potentials of pennisetum purpureum ash as cement replacement material
title_full	The potentials of pennisetum purpureum ash as cement replacement material
title_fullStr	The potentials of pennisetum purpureum ash as cement replacement material
title_full_unstemmed	The potentials of pennisetum purpureum ash as cement replacement material
title_sort	potentials of pennisetum purpureum ash as cement replacement material
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Awam dan Alam Bina
publishDate	2019
url	http://eprints.uthm.edu.my/614/1/24p%20NIK%20NADIA%20AMIRA%20NIK%20PA.pdf http://eprints.uthm.edu.my/614/2/NIK%20NADIA%20AMIRA%20NIK%20PA%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/614/3/NIK%20NADIA%20AMIRA%20NIK%20PA%20WATERMARK.pdf
_version_	1747830646369157120

The potentials of pennisetum purpureum ash as cement replacement material

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