Modified cement system :durability and aesthetic

Efflorescence is a type of discoloration. It is a deposit salt, usually white in color that occasionally develops on the surface of concrete. Although unattractive, efflorescence is usually harmless to the structure such as concrete bridge. In rare cases excessive efflorescence, within the pores...

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Main Author: Siti Zarini Binti, Mohamed Jizi
Format: Final Year Project Report / IMRAD
Language:English
English
Published: Universiti Malaysia Sarawak (UNIMAS) 2009
Subjects:
Online Access:http://ir.unimas.my/id/eprint/7495/
http://ir.unimas.my/id/eprint/7495/1/Zarini%20%20%2824%20pages%29.pdf
http://ir.unimas.my/id/eprint/7495/4/Zarini%20%28fulltext%29.pdf
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author Siti Zarini Binti, Mohamed Jizi
author_facet Siti Zarini Binti, Mohamed Jizi
author_sort Siti Zarini Binti, Mohamed Jizi
building UNIMAS Institutional Repository
collection Online Access
description Efflorescence is a type of discoloration. It is a deposit salt, usually white in color that occasionally develops on the surface of concrete. Although unattractive, efflorescence is usually harmless to the structure such as concrete bridge. In rare cases excessive efflorescence, within the pores of the material, can cause expansion that may disrupt the surface. Efflorescence is caused when soluble salts and other water dispersible materials come to the surface of concrete and mortars. It is induced by low temperatures, moist conditions, condensation, rain, and water added to the surface of concrete. The modified cement system can reduce the efflorescence but cannot avoid it because of the reaction of cement hydration itself. This study proved that by using the modified cement system such as Pulverized Fly Ash (PFA) and Polymers (water based latex grade 29Y46), the efflorescence can be reduced. The mix proportion with and without PFA and Polymers are tested with various properties such as strength test, water absorption and efflorescence in order to understand the effect against the performance of the mortar. The results from this study showed that the modified mortar which is the sample with PFA and Polymers has higher strength, durability, and less efflorescence compared with non-modified cement system.
first_indexed 2025-11-15T06:19:06Z
format Final Year Project Report / IMRAD
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institution Universiti Malaysia Sarawak
institution_category Local University
language English
English
last_indexed 2025-11-15T06:19:06Z
publishDate 2009
publisher Universiti Malaysia Sarawak (UNIMAS)
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spelling unimas-74952024-02-16T07:47:54Z http://ir.unimas.my/id/eprint/7495/ Modified cement system :durability and aesthetic Siti Zarini Binti, Mohamed Jizi TA Engineering (General). Civil engineering (General) TG Bridge engineering TH Building construction Efflorescence is a type of discoloration. It is a deposit salt, usually white in color that occasionally develops on the surface of concrete. Although unattractive, efflorescence is usually harmless to the structure such as concrete bridge. In rare cases excessive efflorescence, within the pores of the material, can cause expansion that may disrupt the surface. Efflorescence is caused when soluble salts and other water dispersible materials come to the surface of concrete and mortars. It is induced by low temperatures, moist conditions, condensation, rain, and water added to the surface of concrete. The modified cement system can reduce the efflorescence but cannot avoid it because of the reaction of cement hydration itself. This study proved that by using the modified cement system such as Pulverized Fly Ash (PFA) and Polymers (water based latex grade 29Y46), the efflorescence can be reduced. The mix proportion with and without PFA and Polymers are tested with various properties such as strength test, water absorption and efflorescence in order to understand the effect against the performance of the mortar. The results from this study showed that the modified mortar which is the sample with PFA and Polymers has higher strength, durability, and less efflorescence compared with non-modified cement system. Universiti Malaysia Sarawak (UNIMAS) 2009 Final Year Project Report / IMRAD NonPeerReviewed text en http://ir.unimas.my/id/eprint/7495/1/Zarini%20%20%2824%20pages%29.pdf text en http://ir.unimas.my/id/eprint/7495/4/Zarini%20%28fulltext%29.pdf Siti Zarini Binti, Mohamed Jizi (2009) Modified cement system :durability and aesthetic. [Final Year Project Report / IMRAD] (Unpublished)
spellingShingle TA Engineering (General). Civil engineering (General)
TG Bridge engineering
TH Building construction
Siti Zarini Binti, Mohamed Jizi
Modified cement system :durability and aesthetic
title Modified cement system :durability and aesthetic
title_full Modified cement system :durability and aesthetic
title_fullStr Modified cement system :durability and aesthetic
title_full_unstemmed Modified cement system :durability and aesthetic
title_short Modified cement system :durability and aesthetic
title_sort modified cement system :durability and aesthetic
topic TA Engineering (General). Civil engineering (General)
TG Bridge engineering
TH Building construction
url http://ir.unimas.my/id/eprint/7495/
http://ir.unimas.my/id/eprint/7495/1/Zarini%20%20%2824%20pages%29.pdf
http://ir.unimas.my/id/eprint/7495/4/Zarini%20%28fulltext%29.pdf