Coal bottom ash as a sustainable supplementary cementitious material for the concrete exposed to seawater

The performances of concrete construction exposed to seawater have been considered since long-time. It was generally perceived that the seawater effects could be decelerated by introducing supplementary cementitious materials (SCM) in concrete, which probably reduces its penetrability. Lower penetra...

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Main Authors:	Mangi, Sajjad Ali, Mohd Haziman, Wan Ibrahim, Norwati, Jamaluddin, Mohd Fadzil, Arshad, Memon, Sheeraz Ahmed, Shahiron, Shahidan, Putra Jaya, Ramadhansyah
Format:	Conference or Workshop Item
Language:	English
Published:	AIP Publishing 2019
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/25369/ http://umpir.ump.edu.my/id/eprint/25369/ http://umpir.ump.edu.my/id/eprint/25369/1/Coal%20Bottom%20Ash%20as%20a%20Sustainable%20Supplementary.pdf

id	ump-25369
recordtype	eprints
spelling	ump-253692019-11-12T04:35:14Z http://umpir.ump.edu.my/id/eprint/25369/ Coal bottom ash as a sustainable supplementary cementitious material for the concrete exposed to seawater Mangi, Sajjad Ali Mohd Haziman, Wan Ibrahim Norwati, Jamaluddin Mohd Fadzil, Arshad Memon, Sheeraz Ahmed Shahiron, Shahidan Putra Jaya, Ramadhansyah TA Engineering (General). Civil engineering (General) The performances of concrete construction exposed to seawater have been considered since long-time. It was generally perceived that the seawater effects could be decelerated by introducing supplementary cementitious materials (SCM) in concrete, which probably reduces its penetrability. Lower penetrability retains the aggressive slats out of the concrete, slows leaching of soluble materials such as lime, reduces the carbonation depth, and better corrosion protection to the reinforcement. Therefore, this study aims to evaluate the compressive strength performances of concrete with and without CBA exposed to seawater. In this study CBA was ground for 20 hours, to get particle fineness as comparable to the cement. Two types of concrete mixes were prepared; one is without ground CBA (M1) and another is with 10% of ground CBA (M2) as a SCM. Concrete cubes were prepared and immersed in normal water for 28 days, to get the desired strength. Afterward, samples were shifted in seawater. The specimens were evaluated for variation in compressive strength and change in weight under dual environments; normal water and seawater at 28, 56 and 90 days. It was experimentally determined that presence of CBA in concrete, raises the strength after 56 days. The strength of M2 concrete at 90 days, gives about 11.3% and 10.2% greater strength under normal water and seawater respectively as compared to M1 concrete. Hence, the CBA presence in concrete, reduces the penetration of aggressive salts, it is an indication of better durability performances of CBA concrete. The practical investigations concluded that the use of CBA as SCM improves the strength of concrete in normal water as well as in seawater environment. AIP Publishing 2019 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25369/1/Coal%20Bottom%20Ash%20as%20a%20Sustainable%20Supplementary.pdf Mangi, Sajjad Ali and Mohd Haziman, Wan Ibrahim and Norwati, Jamaluddin and Mohd Fadzil, Arshad and Memon, Sheeraz Ahmed and Shahiron, Shahidan and Putra Jaya, Ramadhansyah (2019) Coal bottom ash as a sustainable supplementary cementitious material for the concrete exposed to seawater. In: 5th International Conference on Energy, Environment and Sustainable Development, EESD 2018, 14-16 November 2018 , Mehran University of Engineering and TechnologyJamshoro; Pakistan. pp. 1-8., 2119 (020002). ISSN 0094-243X https://doi.org/10.1063/1.5115361
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) Mangi, Sajjad Ali Mohd Haziman, Wan Ibrahim Norwati, Jamaluddin Mohd Fadzil, Arshad Memon, Sheeraz Ahmed Shahiron, Shahidan Putra Jaya, Ramadhansyah Coal bottom ash as a sustainable supplementary cementitious material for the concrete exposed to seawater
description	The performances of concrete construction exposed to seawater have been considered since long-time. It was generally perceived that the seawater effects could be decelerated by introducing supplementary cementitious materials (SCM) in concrete, which probably reduces its penetrability. Lower penetrability retains the aggressive slats out of the concrete, slows leaching of soluble materials such as lime, reduces the carbonation depth, and better corrosion protection to the reinforcement. Therefore, this study aims to evaluate the compressive strength performances of concrete with and without CBA exposed to seawater. In this study CBA was ground for 20 hours, to get particle fineness as comparable to the cement. Two types of concrete mixes were prepared; one is without ground CBA (M1) and another is with 10% of ground CBA (M2) as a SCM. Concrete cubes were prepared and immersed in normal water for 28 days, to get the desired strength. Afterward, samples were shifted in seawater. The specimens were evaluated for variation in compressive strength and change in weight under dual environments; normal water and seawater at 28, 56 and 90 days. It was experimentally determined that presence of CBA in concrete, raises the strength after 56 days. The strength of M2 concrete at 90 days, gives about 11.3% and 10.2% greater strength under normal water and seawater respectively as compared to M1 concrete. Hence, the CBA presence in concrete, reduces the penetration of aggressive salts, it is an indication of better durability performances of CBA concrete. The practical investigations concluded that the use of CBA as SCM improves the strength of concrete in normal water as well as in seawater environment.
format	Conference or Workshop Item
author	Mangi, Sajjad Ali Mohd Haziman, Wan Ibrahim Norwati, Jamaluddin Mohd Fadzil, Arshad Memon, Sheeraz Ahmed Shahiron, Shahidan Putra Jaya, Ramadhansyah
author_facet	Mangi, Sajjad Ali Mohd Haziman, Wan Ibrahim Norwati, Jamaluddin Mohd Fadzil, Arshad Memon, Sheeraz Ahmed Shahiron, Shahidan Putra Jaya, Ramadhansyah
author_sort	Mangi, Sajjad Ali
title	Coal bottom ash as a sustainable supplementary cementitious material for the concrete exposed to seawater
title_short	Coal bottom ash as a sustainable supplementary cementitious material for the concrete exposed to seawater
title_full	Coal bottom ash as a sustainable supplementary cementitious material for the concrete exposed to seawater
title_fullStr	Coal bottom ash as a sustainable supplementary cementitious material for the concrete exposed to seawater
title_full_unstemmed	Coal bottom ash as a sustainable supplementary cementitious material for the concrete exposed to seawater
title_sort	coal bottom ash as a sustainable supplementary cementitious material for the concrete exposed to seawater
publisher	AIP Publishing
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/25369/ http://umpir.ump.edu.my/id/eprint/25369/ http://umpir.ump.edu.my/id/eprint/25369/1/Coal%20Bottom%20Ash%20as%20a%20Sustainable%20Supplementary.pdf
first_indexed	2023-09-18T22:38:55Z
last_indexed	2023-09-18T22:38:55Z
_version_	1777416782638743552

Coal bottom ash as a sustainable supplementary cementitious material for the concrete exposed to seawater

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