Efflorescence Mitigation By Pozzolanic Industrial By-Products
This study focuses on the effectiveness of pozzolanic industrial by-products namely Fly Ash Class F (FA) and Silica Fume (SF) as partial cement replacements in reducing efflorescence on the surface of Ordinary Portland Cement (OPC) mortar. The early hydration behaviour of Pozzolanic Modified Mortar...
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Malaysian Journal of Civil Engineering
2014
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Online Access: | http://ir.unimas.my/id/eprint/5200/1/Efflorescence%20mitigation%20by%20pozzolanic%20%28abstract%29.pdf http://ir.unimas.my/id/eprint/5200/ |
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my.unimas.ir.52002015-03-11T04:02:18Z http://ir.unimas.my/id/eprint/5200/ Efflorescence Mitigation By Pozzolanic Industrial By-Products Norsuzailina, Mohamed Sutan Sinin, Hamdan Ibrahim, Yakub Zainal, Abidin Talib TA Engineering (General). Civil engineering (General) This study focuses on the effectiveness of pozzolanic industrial by-products namely Fly Ash Class F (FA) and Silica Fume (SF) as partial cement replacements in reducing efflorescence on the surface of Ordinary Portland Cement (OPC) mortar. The early hydration behaviour of Pozzolanic Modified Mortar (PMM) that hypothetically affects efflorescence has been investigated physically using Puddle Test (PT), Standard Chemical Method (SCM), and Electrical Conductivity Test (ECT); mechanically using Compressive Strength Test (CS); and morphologically using Scanning Electron Microscopy (SEM). FA and SF of 10%, 20% and 30% cement replacements as PMM and Unmodified Cement Mortar (UCM) samples were prepared with water-to-cement ratio (w/c) of 0.4. All samples were cured in the concrete laboratory at daily room temperature (T) and relative humidity (RH) in the range of 18-28oC and 65-90%, respectively. Results showed 10%SF reduced efflorescence up to 52.9% in comparison to UCM. The decreased in ECT and the 12.64% increased strength evidently substantiated the EI results. Based on this study, more than 30% cement replacement is detrimental for efflorescence mitigation. It might be due to the lack of water content to initiate pozzolanic reaction because of the agglomeration of fine SF particles. Malaysian Journal of Civil Engineering 2014 E-Article PeerReviewed text en http://ir.unimas.my/id/eprint/5200/1/Efflorescence%20mitigation%20by%20pozzolanic%20%28abstract%29.pdf Norsuzailina, Mohamed Sutan and Sinin, Hamdan and Ibrahim, Yakub and Zainal, Abidin Talib (2014) Efflorescence Mitigation By Pozzolanic Industrial By-Products. Malaysian Journal of Civil Engineering, 26 (2). |
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TA Engineering (General). Civil engineering (General) Norsuzailina, Mohamed Sutan Sinin, Hamdan Ibrahim, Yakub Zainal, Abidin Talib Efflorescence Mitigation By Pozzolanic Industrial By-Products |
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This study focuses on the effectiveness of pozzolanic industrial by-products namely Fly Ash Class F (FA) and Silica Fume (SF) as partial cement replacements in reducing efflorescence on the surface of Ordinary Portland Cement (OPC) mortar. The early hydration behaviour of Pozzolanic Modified Mortar (PMM) that hypothetically affects efflorescence has been investigated physically using Puddle Test (PT), Standard Chemical Method (SCM), and Electrical Conductivity Test (ECT); mechanically using Compressive Strength Test (CS); and morphologically using Scanning Electron Microscopy (SEM). FA and SF of 10%, 20% and 30% cement replacements as PMM and Unmodified Cement Mortar (UCM) samples were prepared with water-to-cement ratio (w/c) of 0.4. All samples were cured in the concrete laboratory at daily room temperature (T) and relative humidity (RH) in the range of 18-28oC and 65-90%, respectively. Results showed 10%SF reduced efflorescence up to 52.9% in comparison to UCM. The decreased in ECT and the 12.64% increased strength evidently substantiated the EI results. Based on this study, more than 30% cement replacement is detrimental for efflorescence mitigation. It might be due to the lack of water content to initiate pozzolanic reaction because of the agglomeration of fine SF particles. |
format |
E-Article |
author |
Norsuzailina, Mohamed Sutan Sinin, Hamdan Ibrahim, Yakub Zainal, Abidin Talib |
author_facet |
Norsuzailina, Mohamed Sutan Sinin, Hamdan Ibrahim, Yakub Zainal, Abidin Talib |
author_sort |
Norsuzailina, Mohamed Sutan |
title |
Efflorescence Mitigation By Pozzolanic Industrial By-Products |
title_short |
Efflorescence Mitigation By Pozzolanic Industrial By-Products |
title_full |
Efflorescence Mitigation By Pozzolanic Industrial By-Products |
title_fullStr |
Efflorescence Mitigation By Pozzolanic Industrial By-Products |
title_full_unstemmed |
Efflorescence Mitigation By Pozzolanic Industrial By-Products |
title_sort |
efflorescence mitigation by pozzolanic industrial by-products |
publisher |
Malaysian Journal of Civil Engineering |
publishDate |
2014 |
url |
http://ir.unimas.my/id/eprint/5200/1/Efflorescence%20mitigation%20by%20pozzolanic%20%28abstract%29.pdf http://ir.unimas.my/id/eprint/5200/ |
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13.160551 |