Effect of palm oil fuel ash (POFA) as cement replacement material toward concrete microstructure

Palm Oil Fuel Ash (POFA) is a by-product produced in palm oil mills. These ash having pozzolanic properties that not only enables the replacement of cement but also plays an important role in making strong and durable concrete. For this research, the effectiveness using POFA as cement replacement ma...

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Main Author:	Rahimah, Yusoff
Format:	Undergraduates Project Papers
Language:	English
Published:	2012
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/14471/ http://umpir.ump.edu.my/id/eprint/14471/ http://umpir.ump.edu.my/id/eprint/14471/1/FKASA%20-%20RAHIMAH%20YUSOFF.PDF

id	ump-14471
recordtype	eprints
spelling	ump-144712016-09-26T06:20:06Z http://umpir.ump.edu.my/id/eprint/14471/ Effect of palm oil fuel ash (POFA) as cement replacement material toward concrete microstructure Rahimah, Yusoff TA Engineering (General). Civil engineering (General) Palm Oil Fuel Ash (POFA) is a by-product produced in palm oil mills. These ash having pozzolanic properties that not only enables the replacement of cement but also plays an important role in making strong and durable concrete. For this research, the effectiveness using POFA as cement replacement material towards concrete microstructure was investigated. OPC replaced with 10%, 20 % and 30% of POFA respectively. For compressive strength, concrete cubes 150 x 150 x 150 mm was tested due to 7, 28, and 90 days cured in water. Although strength of POFA concrete did not exceed that of OPC, the compressive strength of POFA concrete is slightly lower than that of OPC at early age but at later ages it is found to be higher than that of OPC concrete. It was found that, the concrete with 20 % of POFA recorded highest compressive strength compare to those POFAmixes. POFA concrete exhibit lower value of porosity compared to OPC concrete. Based on porosity test results, the 20% replacement of the POFA, give the lower of porosity. XRD analysis leads to the fact that the existence of C-S-H increased withcuring age indicating the progress of cement hydration reaction and pozzalanic reaction. From the microstructural analysis (SEM), shows existing of C-S-H gel have lead to a densification structure and increase in strength. Hexagonal platelets of Ca(OH)2 could be observed in some samples. 2012-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/14471/1/FKASA%20-%20RAHIMAH%20YUSOFF.PDF Rahimah, Yusoff (2012) Effect of palm oil fuel ash (POFA) as cement replacement material toward concrete microstructure. Faculty of Civil Engineering & Earth Resources, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:76424&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Rahimah, Yusoff Effect of palm oil fuel ash (POFA) as cement replacement material toward concrete microstructure
description	Palm Oil Fuel Ash (POFA) is a by-product produced in palm oil mills. These ash having pozzolanic properties that not only enables the replacement of cement but also plays an important role in making strong and durable concrete. For this research, the effectiveness using POFA as cement replacement material towards concrete microstructure was investigated. OPC replaced with 10%, 20 % and 30% of POFA respectively. For compressive strength, concrete cubes 150 x 150 x 150 mm was tested due to 7, 28, and 90 days cured in water. Although strength of POFA concrete did not exceed that of OPC, the compressive strength of POFA concrete is slightly lower than that of OPC at early age but at later ages it is found to be higher than that of OPC concrete. It was found that, the concrete with 20 % of POFA recorded highest compressive strength compare to those POFAmixes. POFA concrete exhibit lower value of porosity compared to OPC concrete. Based on porosity test results, the 20% replacement of the POFA, give the lower of porosity. XRD analysis leads to the fact that the existence of C-S-H increased withcuring age indicating the progress of cement hydration reaction and pozzalanic reaction. From the microstructural analysis (SEM), shows existing of C-S-H gel have lead to a densification structure and increase in strength. Hexagonal platelets of Ca(OH)2 could be observed in some samples.
format	Undergraduates Project Papers
author	Rahimah, Yusoff
author_facet	Rahimah, Yusoff
author_sort	Rahimah, Yusoff
title	Effect of palm oil fuel ash (POFA) as cement replacement material toward concrete microstructure
title_short	Effect of palm oil fuel ash (POFA) as cement replacement material toward concrete microstructure
title_full	Effect of palm oil fuel ash (POFA) as cement replacement material toward concrete microstructure
title_fullStr	Effect of palm oil fuel ash (POFA) as cement replacement material toward concrete microstructure
title_full_unstemmed	Effect of palm oil fuel ash (POFA) as cement replacement material toward concrete microstructure
title_sort	effect of palm oil fuel ash (pofa) as cement replacement material toward concrete microstructure
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/14471/ http://umpir.ump.edu.my/id/eprint/14471/ http://umpir.ump.edu.my/id/eprint/14471/1/FKASA%20-%20RAHIMAH%20YUSOFF.PDF
first_indexed	2023-09-18T22:18:15Z
last_indexed	2023-09-18T22:18:15Z
_version_	1777415483252801536

Effect of palm oil fuel ash (POFA) as cement replacement material toward concrete microstructure

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