Hydrochloric acid based pre-treatment on paper mill sludge ash as an alternative source material for geopolymer

This study focuses on the pre-treatment of paper mill sludge ash (PMSA) as a by-product of paper milling industry that contains high amount of calcium, yet low in silica. The presence of high calcium content in geopolymer system will accelerate the setting time of fresh geopolymer and may disrupt th...

Full description

Bibliographic Details
Main Authors:	Nabilah, Mamat, Kusbiantoro, Andri, Norbaizurah, Rahman
Format:	Article
Language:	English
Published:	Elsevier Ltd 2018
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/23853/ http://umpir.ump.edu.my/id/eprint/23853/ http://umpir.ump.edu.my/id/eprint/23853/ http://umpir.ump.edu.my/id/eprint/23853/7/Hydrochloric%20acid%20based%20pre-treatment1.pdf

id	ump-23853
recordtype	eprints
spelling	ump-238532019-10-15T07:45:41Z http://umpir.ump.edu.my/id/eprint/23853/ Hydrochloric acid based pre-treatment on paper mill sludge ash as an alternative source material for geopolymer Nabilah, Mamat Kusbiantoro, Andri Norbaizurah, Rahman TA Engineering (General). Civil engineering (General) This study focuses on the pre-treatment of paper mill sludge ash (PMSA) as a by-product of paper milling industry that contains high amount of calcium, yet low in silica. The presence of high calcium content in geopolymer system will accelerate the setting time of fresh geopolymer and may disrupt the development of its mechanical strength. Therefore, in this study, the refinement of PMSA properties was conducted by treating raw PMSA in hydrochloric acid solution with different molarities of 0.5 M, 1.0 M and 1.5 M. The pre-treatment process was mainly purposed to decrease the amount of calcium and other impurities through leaching mechanism. Characterization of raw materials and pre-treated PMSA was done based on ICPMS and XRF analysis for its leachate and oxide analysis, respectively, while the effect of pre-treated PMSA on geopolymer properties was conducted by adding the pre-treated ash as a replacement material for fly ash at various percentages of replacement (5%, 10%, and 15%). Based on the experimental results, 1.5 M hydrochloric acid solution (HCl) was determined as the optimum concentration due to its ability in removing higher amount of calcium from the ash, yet still able to increase the amount of silica. Testing on the hardened properties of geopolymer specimen also showed the deceleration of fresh fly ash based geopolymer and produced a more workable fresh geopolymer. Higher workability has led to a denser and more compact specimen, which contributed to the higher mechanical strength of hardened specimen, particularly in 5% pre-treated PMSA specimen. Therefore, the use of PMSA as an alternative source material for fly ash based geopolymer has presented a favourable potency, particularly after the pre-treatment process with HCl Elsevier Ltd 2018-10-06 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/23853/7/Hydrochloric%20acid%20based%20pre-treatment1.pdf Nabilah, Mamat and Kusbiantoro, Andri and Norbaizurah, Rahman (2018) Hydrochloric acid based pre-treatment on paper mill sludge ash as an alternative source material for geopolymer. Materials Today: Proceedings, 5 (10 Part 2). pp. 21825-21831. ISSN 2214-7853 https://doi.org/10.1016/j.matpr.2018.07.038 https://doi.org/10.1016/j.matpr.2018.07.038
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) Nabilah, Mamat Kusbiantoro, Andri Norbaizurah, Rahman Hydrochloric acid based pre-treatment on paper mill sludge ash as an alternative source material for geopolymer
description	This study focuses on the pre-treatment of paper mill sludge ash (PMSA) as a by-product of paper milling industry that contains high amount of calcium, yet low in silica. The presence of high calcium content in geopolymer system will accelerate the setting time of fresh geopolymer and may disrupt the development of its mechanical strength. Therefore, in this study, the refinement of PMSA properties was conducted by treating raw PMSA in hydrochloric acid solution with different molarities of 0.5 M, 1.0 M and 1.5 M. The pre-treatment process was mainly purposed to decrease the amount of calcium and other impurities through leaching mechanism. Characterization of raw materials and pre-treated PMSA was done based on ICPMS and XRF analysis for its leachate and oxide analysis, respectively, while the effect of pre-treated PMSA on geopolymer properties was conducted by adding the pre-treated ash as a replacement material for fly ash at various percentages of replacement (5%, 10%, and 15%). Based on the experimental results, 1.5 M hydrochloric acid solution (HCl) was determined as the optimum concentration due to its ability in removing higher amount of calcium from the ash, yet still able to increase the amount of silica. Testing on the hardened properties of geopolymer specimen also showed the deceleration of fresh fly ash based geopolymer and produced a more workable fresh geopolymer. Higher workability has led to a denser and more compact specimen, which contributed to the higher mechanical strength of hardened specimen, particularly in 5% pre-treated PMSA specimen. Therefore, the use of PMSA as an alternative source material for fly ash based geopolymer has presented a favourable potency, particularly after the pre-treatment process with HCl
format	Article
author	Nabilah, Mamat Kusbiantoro, Andri Norbaizurah, Rahman
author_facet	Nabilah, Mamat Kusbiantoro, Andri Norbaizurah, Rahman
author_sort	Nabilah, Mamat
title	Hydrochloric acid based pre-treatment on paper mill sludge ash as an alternative source material for geopolymer
title_short	Hydrochloric acid based pre-treatment on paper mill sludge ash as an alternative source material for geopolymer
title_full	Hydrochloric acid based pre-treatment on paper mill sludge ash as an alternative source material for geopolymer
title_fullStr	Hydrochloric acid based pre-treatment on paper mill sludge ash as an alternative source material for geopolymer
title_full_unstemmed	Hydrochloric acid based pre-treatment on paper mill sludge ash as an alternative source material for geopolymer
title_sort	hydrochloric acid based pre-treatment on paper mill sludge ash as an alternative source material for geopolymer
publisher	Elsevier Ltd
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/23853/ http://umpir.ump.edu.my/id/eprint/23853/ http://umpir.ump.edu.my/id/eprint/23853/ http://umpir.ump.edu.my/id/eprint/23853/7/Hydrochloric%20acid%20based%20pre-treatment1.pdf
first_indexed	2023-09-18T22:35:54Z
last_indexed	2023-09-18T22:35:54Z
_version_	1777416593589927936

Hydrochloric acid based pre-treatment on paper mill sludge ash as an alternative source material for geopolymer

Similar Items