Assessment of green inhibitor on the crystal structures of carbonated concrete
The present paper involves studies of inhibitors on carbonation depth and carboaluminates of concrete which was exposed to accelerated carbonation. Three inhibitors used were; calcium nitrite, ethanolamine and eco-friendly green Bambusa Arundinacea. Concrete mix was designed to be 30 MPa with 0.45 W...
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Online Access: | http://eprints.utm.my/id/eprint/51939/1/MohammadIsmail2014_Assessmentofgreeninhibitor.pdf http://eprints.utm.my/id/eprint/51939/ http://dx.doi.org/10.11113/jt.v69.3137 |
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my.utm.519392018-08-29T07:57:15Z http://eprints.utm.my/id/eprint/51939/ Assessment of green inhibitor on the crystal structures of carbonated concrete Abdulrahman, A. S. Ismail, Mohammad TA Engineering (General). Civil engineering (General) The present paper involves studies of inhibitors on carbonation depth and carboaluminates of concrete which was exposed to accelerated carbonation. Three inhibitors used were; calcium nitrite, ethanolamine and eco-friendly green Bambusa Arundinacea. Concrete mix was designed to be 30 MPa with 0.45 W/C ratios which was chloride contaminated by 1.5% weight of cement content from analytical grade of magnesium chloride salt. Inhibitors additions were 2% and 4% weight of cement content. The results show that Bambusa arundinacea inhibitor distinctively shows lowest level of carbonation. This developed hydrophobic green inhibitor characteristics was able to form impermeable barrier against CO2 gas. Additionally, hemicarboaluminate phases appears at hydration in calcite-containing Portland cement, even in the presence of two inhibitors (calcium nitrite and ethanolamine) which gradually converted to monocarboaluminate. Whereas, Bambusa arundinacea inhibitor causes the saturation of portlandite that maintained Ca/Si ratio above 1.65 and C-S-H remain unaffected by carbonation Penerbit UTM 2014 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/51939/1/MohammadIsmail2014_Assessmentofgreeninhibitor.pdf Abdulrahman, A. S. and Ismail, Mohammad (2014) Assessment of green inhibitor on the crystal structures of carbonated concrete. Jurnal Teknologi (Sciences and Engineering), 69 (3). pp. 1-9. ISSN 0127-9696 http://dx.doi.org/10.11113/jt.v69.3137 DOI: 10.11113/jt.v69.3137 |
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TA Engineering (General). Civil engineering (General) Abdulrahman, A. S. Ismail, Mohammad Assessment of green inhibitor on the crystal structures of carbonated concrete |
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The present paper involves studies of inhibitors on carbonation depth and carboaluminates of concrete which was exposed to accelerated carbonation. Three inhibitors used were; calcium nitrite, ethanolamine and eco-friendly green Bambusa Arundinacea. Concrete mix was designed to be 30 MPa with 0.45 W/C ratios which was chloride contaminated by 1.5% weight of cement content from analytical grade of magnesium chloride salt. Inhibitors additions were 2% and 4% weight of cement content. The results show that Bambusa arundinacea inhibitor distinctively shows lowest level of carbonation. This developed hydrophobic green inhibitor characteristics was able to form impermeable barrier against CO2 gas. Additionally, hemicarboaluminate phases appears at hydration in calcite-containing Portland cement, even in the presence of two inhibitors (calcium nitrite and ethanolamine) which gradually converted to monocarboaluminate. Whereas, Bambusa arundinacea inhibitor causes the saturation of portlandite that maintained Ca/Si ratio above 1.65 and C-S-H remain unaffected by carbonation |
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Article |
author |
Abdulrahman, A. S. Ismail, Mohammad |
author_facet |
Abdulrahman, A. S. Ismail, Mohammad |
author_sort |
Abdulrahman, A. S. |
title |
Assessment of green inhibitor on the crystal structures of carbonated concrete |
title_short |
Assessment of green inhibitor on the crystal structures of carbonated concrete |
title_full |
Assessment of green inhibitor on the crystal structures of carbonated concrete |
title_fullStr |
Assessment of green inhibitor on the crystal structures of carbonated concrete |
title_full_unstemmed |
Assessment of green inhibitor on the crystal structures of carbonated concrete |
title_sort |
assessment of green inhibitor on the crystal structures of carbonated concrete |
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Penerbit UTM |
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2014 |
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http://eprints.utm.my/id/eprint/51939/1/MohammadIsmail2014_Assessmentofgreeninhibitor.pdf http://eprints.utm.my/id/eprint/51939/ http://dx.doi.org/10.11113/jt.v69.3137 |
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13.160551 |