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Effect of Metakaolin on Strength and Efflorescence Quantity of Cement-Based Composites
This study investigated the basic mechanical and microscopic properties of cement produced with metakaolin and quantified the production of residual white efflorescence. Cement mortar was produced at various replacement ratios of metakaolin (0, 5, 10, 15, 20, and 25% by weight of cement) and exposed...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi Publishing Corporation
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3655642/ https://www.ncbi.nlm.nih.gov/pubmed/23737719 http://dx.doi.org/10.1155/2013/606524 |
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author | Weng, Tsai-Lung Lin, Wei-Ting Cheng, An |
author_facet | Weng, Tsai-Lung Lin, Wei-Ting Cheng, An |
author_sort | Weng, Tsai-Lung |
collection | PubMed |
description | This study investigated the basic mechanical and microscopic properties of cement produced with metakaolin and quantified the production of residual white efflorescence. Cement mortar was produced at various replacement ratios of metakaolin (0, 5, 10, 15, 20, and 25% by weight of cement) and exposed to various environments. Compressive strength and efflorescence quantify (using Matrix Laboratory image analysis and the curettage method), scanning electron microscopy, and X-ray diffraction analysis were reported in this study. Specimens with metakaolin as a replacement for Portland cement present higher compressive strength and greater resistance to efflorescence; however, the addition of more than 20% metakaolin has a detrimental effect on strength and efflorescence. This may be explained by the microstructure and hydration products. The quantity of efflorescence determined using MATLAB image analysis is close to the result obtained using the curettage method. The results demonstrate the best effectiveness of replacing Portland cement with metakaolin at a 15% replacement ratio by weight. |
format | Online Article Text |
id | pubmed-3655642 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Hindawi Publishing Corporation |
record_format | MEDLINE/PubMed |
spelling | pubmed-36556422013-06-04 Effect of Metakaolin on Strength and Efflorescence Quantity of Cement-Based Composites Weng, Tsai-Lung Lin, Wei-Ting Cheng, An ScientificWorldJournal Research Article This study investigated the basic mechanical and microscopic properties of cement produced with metakaolin and quantified the production of residual white efflorescence. Cement mortar was produced at various replacement ratios of metakaolin (0, 5, 10, 15, 20, and 25% by weight of cement) and exposed to various environments. Compressive strength and efflorescence quantify (using Matrix Laboratory image analysis and the curettage method), scanning electron microscopy, and X-ray diffraction analysis were reported in this study. Specimens with metakaolin as a replacement for Portland cement present higher compressive strength and greater resistance to efflorescence; however, the addition of more than 20% metakaolin has a detrimental effect on strength and efflorescence. This may be explained by the microstructure and hydration products. The quantity of efflorescence determined using MATLAB image analysis is close to the result obtained using the curettage method. The results demonstrate the best effectiveness of replacing Portland cement with metakaolin at a 15% replacement ratio by weight. Hindawi Publishing Corporation 2013-04-28 /pmc/articles/PMC3655642/ /pubmed/23737719 http://dx.doi.org/10.1155/2013/606524 Text en Copyright © 2013 Tsai-Lung Weng et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Weng, Tsai-Lung Lin, Wei-Ting Cheng, An Effect of Metakaolin on Strength and Efflorescence Quantity of Cement-Based Composites |
title | Effect of Metakaolin on Strength and Efflorescence Quantity of Cement-Based Composites |
title_full | Effect of Metakaolin on Strength and Efflorescence Quantity of Cement-Based Composites |
title_fullStr | Effect of Metakaolin on Strength and Efflorescence Quantity of Cement-Based Composites |
title_full_unstemmed | Effect of Metakaolin on Strength and Efflorescence Quantity of Cement-Based Composites |
title_short | Effect of Metakaolin on Strength and Efflorescence Quantity of Cement-Based Composites |
title_sort | effect of metakaolin on strength and efflorescence quantity of cement-based composites |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3655642/ https://www.ncbi.nlm.nih.gov/pubmed/23737719 http://dx.doi.org/10.1155/2013/606524 |
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