Durability of OPS Lightweight Aggregate Concrete Containing Palm Oil Fuel Ash after Long Term Exposure in Sulphate Environment

Durability of OPS Lightweight Aggregate Concrete Containing Palm Oil Fuel Ash after Long Term Exposure in Sulphate Environment

As one of the world largest palm oil producers, Malaysia continuously generates a large amount of by-product namely oil palm shell (OPS) and palm oil fuel ash (POFA) which disposed as environmentally polluting waste. In order to reduce amount of waste disposed, researchers manage to use these wastes...

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Main Authors: Nur Azzimah, Zamri, Khairunisa, Muthusamy, Nasly, Mohamed Ali
Format: Conference or Workshop Item
Language:English
Published: Universiti Malaysia Pahang 2016
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/14600/
http://umpir.ump.edu.my/id/eprint/14600/
http://umpir.ump.edu.my/id/eprint/14600/1/P071%20pg525-528%20Azimah.pdf
id ump-14600
recordtype eprints
spelling ump-146002019-10-16T08:28:35Z http://umpir.ump.edu.my/id/eprint/14600/ Durability of OPS Lightweight Aggregate Concrete Containing Palm Oil Fuel Ash after Long Term Exposure in Sulphate Environment Nur Azzimah, Zamri Khairunisa, Muthusamy Nasly, Mohamed Ali TA Engineering (General). Civil engineering (General) As one of the world largest palm oil producers, Malaysia continuously generates a large amount of by-product namely oil palm shell (OPS) and palm oil fuel ash (POFA) which disposed as environmentally polluting waste. In order to reduce amount of waste disposed, researchers manage to use these wastes in construction material production leading to development of oil palm shell lightweight aggregate concrete containing palm oil fuel ash as partial cement replacement. The present research was conducted to investigate the sulphate resistance of oil palm shell lightweight aggregate concrete containing finely ground palm oil fuel ash. Two types of mixes of Grade 30 are prepared. Oil palm shell lightweight aggregate concrete (OPS LWAC) is a control specimen and another one containing twenty percent of palm oil fuel ash (POFA) as partial cement replacement. Both mixes were water cured for 28 days before immersed in sodium sulphate solution for a period of 47 weeks. This test was conducted for a long period as demand for long service lives construction in harsh environments increases. The mass of the specimens were measured from time to time in order determine the behavior of the specimens upon sulphate attack. Compressive strength test and microstructure study was also carried out at the end of immersion period. The result shows that oil palm shell lightweight aggregate concrete containing finely ground palm oil fuel ash exhibit lower percentage in mass change and strength deterioration compared to plain specimen. Integration of palm oil fuel ash as partial cement replacement enhances the resistance of oil palm shell lightweight aggregate concrete towards sulphate attack although left in the sulphate environment for a long period. Inclusion of finely ground palm oil fuel ash contributes towards densification of concrete microstructure through formation of secondary C-S-H gel by pozzolanic reaction and filling effect. Universiti Malaysia Pahang 2016-09 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/14600/1/P071%20pg525-528%20Azimah.pdf Nur Azzimah, Zamri and Khairunisa, Muthusamy and Nasly, Mohamed Ali (2016) Durability of OPS Lightweight Aggregate Concrete Containing Palm Oil Fuel Ash after Long Term Exposure in Sulphate Environment. In: Proceedings of The National Conference for Postgraduate Research (NCON-PGR 2016), 24-25 September 2016 , Universiti Malaysia Pahang (UMP), Pekan, Pahang. pp. 525-528.. http://ee.ump.edu.my/ncon/wp-content/uploads/2016/10/Proceeding-NCON-PGR-2016.zip
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)
Nur Azzimah, Zamri
Khairunisa, Muthusamy
Nasly, Mohamed Ali
Durability of OPS Lightweight Aggregate Concrete Containing Palm Oil Fuel Ash after Long Term Exposure in Sulphate Environment
description As one of the world largest palm oil producers, Malaysia continuously generates a large amount of by-product namely oil palm shell (OPS) and palm oil fuel ash (POFA) which disposed as environmentally polluting waste. In order to reduce amount of waste disposed, researchers manage to use these wastes in construction material production leading to development of oil palm shell lightweight aggregate concrete containing palm oil fuel ash as partial cement replacement. The present research was conducted to investigate the sulphate resistance of oil palm shell lightweight aggregate concrete containing finely ground palm oil fuel ash. Two types of mixes of Grade 30 are prepared. Oil palm shell lightweight aggregate concrete (OPS LWAC) is a control specimen and another one containing twenty percent of palm oil fuel ash (POFA) as partial cement replacement. Both mixes were water cured for 28 days before immersed in sodium sulphate solution for a period of 47 weeks. This test was conducted for a long period as demand for long service lives construction in harsh environments increases. The mass of the specimens were measured from time to time in order determine the behavior of the specimens upon sulphate attack. Compressive strength test and microstructure study was also carried out at the end of immersion period. The result shows that oil palm shell lightweight aggregate concrete containing finely ground palm oil fuel ash exhibit lower percentage in mass change and strength deterioration compared to plain specimen. Integration of palm oil fuel ash as partial cement replacement enhances the resistance of oil palm shell lightweight aggregate concrete towards sulphate attack although left in the sulphate environment for a long period. Inclusion of finely ground palm oil fuel ash contributes towards densification of concrete microstructure through formation of secondary C-S-H gel by pozzolanic reaction and filling effect.
format Conference or Workshop Item
author Nur Azzimah, Zamri
Khairunisa, Muthusamy
Nasly, Mohamed Ali
author_facet Nur Azzimah, Zamri
Khairunisa, Muthusamy
Nasly, Mohamed Ali
author_sort Nur Azzimah, Zamri
title Durability of OPS Lightweight Aggregate Concrete Containing Palm Oil Fuel Ash after Long Term Exposure in Sulphate Environment
title_short Durability of OPS Lightweight Aggregate Concrete Containing Palm Oil Fuel Ash after Long Term Exposure in Sulphate Environment
title_full Durability of OPS Lightweight Aggregate Concrete Containing Palm Oil Fuel Ash after Long Term Exposure in Sulphate Environment
title_fullStr Durability of OPS Lightweight Aggregate Concrete Containing Palm Oil Fuel Ash after Long Term Exposure in Sulphate Environment
title_full_unstemmed Durability of OPS Lightweight Aggregate Concrete Containing Palm Oil Fuel Ash after Long Term Exposure in Sulphate Environment
title_sort durability of ops lightweight aggregate concrete containing palm oil fuel ash after long term exposure in sulphate environment
publisher Universiti Malaysia Pahang
publishDate 2016
url http://umpir.ump.edu.my/id/eprint/14600/
http://umpir.ump.edu.my/id/eprint/14600/
http://umpir.ump.edu.my/id/eprint/14600/1/P071%20pg525-528%20Azimah.pdf
first_indexed 2023-09-18T22:18:33Z
last_indexed 2023-09-18T22:18:33Z
_version_ 1777415501296697344

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