Studies of Surface Area and Pore Structure on Portland Cement Produced in Bajil and Amran, Yemen
Portland cement pastes of various porosities were prepared using water/cement ratios of 0.30, 0.35, 0.40, 0.45, 0.50 and 0.55; and were hydrated for various time intervals ranging from 0.021 to 28 days. Pore structure and VL–t plots (plots of volume vs. thickness) of the hardened cement pastes were...
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Sultan Qaboos University
2008-06-01
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| Series: | Sultan Qaboos University Journal for Science |
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| Online Access: | https://journals.squ.edu.om/index.php/squjs/article/view/349 |
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| author | A.M. Saad Abdul-Basit A. Saleh Fatima A. Al-Kadri Abdulla S. Babaqi Abdulla A. Basissa S.A. Abo El-Enein |
| author_facet | A.M. Saad Abdul-Basit A. Saleh Fatima A. Al-Kadri Abdulla S. Babaqi Abdulla A. Basissa S.A. Abo El-Enein |
| author_sort | A.M. Saad |
| collection | DOAJ |
| description | Portland cement pastes of various porosities were prepared using water/cement ratios of 0.30, 0.35, 0.40, 0.45, 0.50 and 0.55; and were hydrated for various time intervals ranging from 0.021 to 28 days. Pore structure and VL–t plots (plots of volume vs. thickness) of the hardened cement pastes were measured using nitrogen gas as the adsorbate. The results were found to be related to the mechanism of hydration as controlled by the pore system of the hardened pastes. Type ІІ adsorption isotherms of nitrogen were obtained for all hardened cement pastes. The adsorption-desorption isotherms indicated the existence of closed hysteresis loops for most of the investigated samples and in some other cases, these isotherms were fully reversible. |
| first_indexed | 2024-12-19T07:15:03Z |
| format | Article |
| id | doaj.art-9ba61fb7789540a6a4b9e78a851ae7bb |
| institution | Directory Open Access Journal |
| issn | 1027-524X 2414-536X |
| language | English |
| last_indexed | 2024-12-19T07:15:03Z |
| publishDate | 2008-06-01 |
| publisher | Sultan Qaboos University |
| record_format | Article |
| series | Sultan Qaboos University Journal for Science |
| spelling | doaj.art-9ba61fb7789540a6a4b9e78a851ae7bb2022-12-21T20:31:05ZengSultan Qaboos UniversitySultan Qaboos University Journal for Science1027-524X2414-536X2008-06-01130132510.24200/squjs.vol13iss0pp13-25348Studies of Surface Area and Pore Structure on Portland Cement Produced in Bajil and Amran, YemenA.M. Saad0Abdul-Basit A. Saleh1Fatima A. Al-Kadri2Abdulla S. Babaqi3Abdulla A. Basissa4S.A. Abo El-Enein5Department of Chemistry, Faculty of Science, Sana'a University, P.O. Box 11923, Sana'aDepartment of Physics, Faculty of Science, Sana'a University, P.O.Box 8211, Sana'a, YemenDepartment of Chemistry, Faculty of Science, Sana'a University, P.O. Box 11923, Sana'aDepartment of Chemistry, Faculty of Science, Sana'a University, P.O. Box 11923, Sana'aDepartment of Chemistry, Faculty of Science, Sana'a University, P.O. Box 11923, Sana'aDepartment of Chemistry, Faculty of Science, Ain-Shams University, EgyptPortland cement pastes of various porosities were prepared using water/cement ratios of 0.30, 0.35, 0.40, 0.45, 0.50 and 0.55; and were hydrated for various time intervals ranging from 0.021 to 28 days. Pore structure and VL–t plots (plots of volume vs. thickness) of the hardened cement pastes were measured using nitrogen gas as the adsorbate. The results were found to be related to the mechanism of hydration as controlled by the pore system of the hardened pastes. Type ІІ adsorption isotherms of nitrogen were obtained for all hardened cement pastes. The adsorption-desorption isotherms indicated the existence of closed hysteresis loops for most of the investigated samples and in some other cases, these isotherms were fully reversible.https://journals.squ.edu.om/index.php/squjs/article/view/349Surface areaPore sizePortland cementCement pasteAdsorption. |
| spellingShingle | A.M. Saad Abdul-Basit A. Saleh Fatima A. Al-Kadri Abdulla S. Babaqi Abdulla A. Basissa S.A. Abo El-Enein Studies of Surface Area and Pore Structure on Portland Cement Produced in Bajil and Amran, Yemen Sultan Qaboos University Journal for Science Surface area Pore size Portland cement Cement paste Adsorption. |
| title | Studies of Surface Area and Pore Structure on Portland Cement Produced in Bajil and Amran, Yemen |
| title_full | Studies of Surface Area and Pore Structure on Portland Cement Produced in Bajil and Amran, Yemen |
| title_fullStr | Studies of Surface Area and Pore Structure on Portland Cement Produced in Bajil and Amran, Yemen |
| title_full_unstemmed | Studies of Surface Area and Pore Structure on Portland Cement Produced in Bajil and Amran, Yemen |
| title_short | Studies of Surface Area and Pore Structure on Portland Cement Produced in Bajil and Amran, Yemen |
| title_sort | studies of surface area and pore structure on portland cement produced in bajil and amran yemen |
| topic | Surface area Pore size Portland cement Cement paste Adsorption. |
| url | https://journals.squ.edu.om/index.php/squjs/article/view/349 |
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