Using High Temperature for Improve Compressive Strength of Ordinary Portland Cement Paste (OPC) – A New Approach

Cement paste was replaced with kaolin-bentonite. The specimens were exposed to elevated temperature for 3 hours in a ceramic furnace and cooled down to room temperature. After cooling, the effect of kaolin-bentonite (particles sized of < 45μm) on hydration, rehydration, surface roughness and comp...

Full description

Bibliographic Details
Main Authors:	Abdoullah, Namdar, Fadzil, Mat Yahaya, M. M., Yusoff
Format:	Article
Language:	English
Published:	Trans Tech Publications, Switzerland 2014
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/8310/ http://umpir.ump.edu.my/id/eprint/8310/ http://umpir.ump.edu.my/id/eprint/8310/ http://umpir.ump.edu.my/id/eprint/8310/1/fkasa-2014-Namdar-Using%20High%20Temperature.pdf

id	ump-8310
recordtype	eprints
spelling	ump-83102018-07-26T06:48:47Z http://umpir.ump.edu.my/id/eprint/8310/ Using High Temperature for Improve Compressive Strength of Ordinary Portland Cement Paste (OPC) – A New Approach Abdoullah, Namdar Fadzil, Mat Yahaya M. M., Yusoff TA Engineering (General). Civil engineering (General) Cement paste was replaced with kaolin-bentonite. The specimens were exposed to elevated temperature for 3 hours in a ceramic furnace and cooled down to room temperature. After cooling, the effect of kaolin-bentonite (particles sized of < 45μm) on hydration, rehydration, surface roughness and compressive strength of ordinary Portland cement (OPC) paste were investigated. Atomic Force Microscopy (AFM) was used to study surface roughness of OPC paste-additive mixture. The application of fire on OPC paste was analyzed. The results showed imposed heat (500 oC for 3 hours) accelerates the hydration process of OPC, and reduces setting time. Increased heat to 1000 oC, leads to zero compressive strength of specimens, the compressive strength of OPC continuously reduces after specimen has fully cooled down. A method for recovery of compressive strength of OPC after offing fire has been suggested. The method of offing fire has important effects on the compressive strength of concrete. The best results for specimen content are cement-kaolin-bentonite paste, exposure to 500 o C, after 90 days of curing, and cooling down in water. In this case the compressive strength has been increased around 60 % compared to not using additive and not exposing to heat. Trans Tech Publications, Switzerland 2014 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8310/1/fkasa-2014-Namdar-Using%20High%20Temperature.pdf Abdoullah, Namdar and Fadzil, Mat Yahaya and M. M., Yusoff (2014) Using High Temperature for Improve Compressive Strength of Ordinary Portland Cement Paste (OPC) – A New Approach. Advanced Materials Research, 894. pp. 70-76. ISSN 1022-6680 (print), 1662-8985 (online) http://www.scientific.net/AMR.894.70 DOI: 10.4028/www.scientific.net/AMR.894.70
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) Abdoullah, Namdar Fadzil, Mat Yahaya M. M., Yusoff Using High Temperature for Improve Compressive Strength of Ordinary Portland Cement Paste (OPC) – A New Approach
description	Cement paste was replaced with kaolin-bentonite. The specimens were exposed to elevated temperature for 3 hours in a ceramic furnace and cooled down to room temperature. After cooling, the effect of kaolin-bentonite (particles sized of < 45μm) on hydration, rehydration, surface roughness and compressive strength of ordinary Portland cement (OPC) paste were investigated. Atomic Force Microscopy (AFM) was used to study surface roughness of OPC paste-additive mixture. The application of fire on OPC paste was analyzed. The results showed imposed heat (500 oC for 3 hours) accelerates the hydration process of OPC, and reduces setting time. Increased heat to 1000 oC, leads to zero compressive strength of specimens, the compressive strength of OPC continuously reduces after specimen has fully cooled down. A method for recovery of compressive strength of OPC after offing fire has been suggested. The method of offing fire has important effects on the compressive strength of concrete. The best results for specimen content are cement-kaolin-bentonite paste, exposure to 500 o C, after 90 days of curing, and cooling down in water. In this case the compressive strength has been increased around 60 % compared to not using additive and not exposing to heat.
format	Article
author	Abdoullah, Namdar Fadzil, Mat Yahaya M. M., Yusoff
author_facet	Abdoullah, Namdar Fadzil, Mat Yahaya M. M., Yusoff
author_sort	Abdoullah, Namdar
title	Using High Temperature for Improve Compressive Strength of Ordinary Portland Cement Paste (OPC) – A New Approach
title_short	Using High Temperature for Improve Compressive Strength of Ordinary Portland Cement Paste (OPC) – A New Approach
title_full	Using High Temperature for Improve Compressive Strength of Ordinary Portland Cement Paste (OPC) – A New Approach
title_fullStr	Using High Temperature for Improve Compressive Strength of Ordinary Portland Cement Paste (OPC) – A New Approach
title_full_unstemmed	Using High Temperature for Improve Compressive Strength of Ordinary Portland Cement Paste (OPC) – A New Approach
title_sort	using high temperature for improve compressive strength of ordinary portland cement paste (opc) – a new approach
publisher	Trans Tech Publications, Switzerland
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/8310/ http://umpir.ump.edu.my/id/eprint/8310/ http://umpir.ump.edu.my/id/eprint/8310/ http://umpir.ump.edu.my/id/eprint/8310/1/fkasa-2014-Namdar-Using%20High%20Temperature.pdf
first_indexed	2023-09-18T22:05:44Z
last_indexed	2023-09-18T22:05:44Z
_version_	1777414695419904000

Using High Temperature for Improve Compressive Strength of Ordinary Portland Cement Paste (OPC) – A New Approach

Similar Items