The Improvement of Thermal Insulating Concrete Panel
The Iraqi houses flattening the roof by a concrete panel, and because of the panels on the top directly exposed to the solar radiation become unbearably hot and cold during the summer and winter. The traditional concrete panel components are cement, sand, and aggregate, which have a poor thermal pro...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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University of Baghdad
2018-05-01
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| Series: | Journal of Engineering |
| Subjects: | |
| Online Access: | http://joe.uobaghdad.edu.iq/index.php/main/article/view/581 |
| _version_ | 1797717833265709056 |
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| author | Mohammed Ali Nasser Ali Abdul Hadi Nema Khalif Doaa Alaa Lafta |
| author_facet | Mohammed Ali Nasser Ali Abdul Hadi Nema Khalif Doaa Alaa Lafta |
| author_sort | Mohammed Ali Nasser Ali |
| collection | DOAJ |
| description | The Iraqi houses flattening the roof by a concrete panel, and because of the panels on the top directly exposed to the solar radiation become unbearably hot and cold during the summer and winter. The traditional concrete panel components are cement, sand, and aggregate, which have a poor thermal property. The usage of materials with low thermal conductivity with no negative reflects on its mechanical properties gives good improvements to the thermal properties of the concrete panel. The practical part of this work was built on a multi-stage mixing plan. In the first stage the mixing ratio based on the ratios of the sand to cement. The second stage mixing ratios based on replacing the coarse aggregate quantities with the Alabaster aggregates, and the third stage the mixing ratios based on the replacement of wood ash instead of the sand. While the fourth stage mixing ratios based on decreasing the thermal conductivity and increasing mechanical properties by adding a multilayer of a plastic net. The result shows that using a concrete panel with components (cement, sand, coarse aggregate, wood ash, and Alabaster aggregates) with a mass ratio of (1:1:2:1:1) and 3-plastic layers, gives the best improvement of the thermal properties. Where, the thermal conductivity is reduced by 42% and the specific heat increased by 41.2% as compared to the traditional concrete panel mixing ratio, with mechanical properties are agreed with the Iraqi standards. |
| first_indexed | 2024-03-12T08:42:10Z |
| format | Article |
| id | doaj.art-ad910d631e7148c28d5064342f0185f5 |
| institution | Directory Open Access Journal |
| issn | 1726-4073 2520-3339 |
| language | English |
| last_indexed | 2024-03-12T08:42:10Z |
| publishDate | 2018-05-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj.art-ad910d631e7148c28d5064342f0185f52023-09-02T16:43:36ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392018-05-0124510.31026/j.eng.2018.05.01The Improvement of Thermal Insulating Concrete PanelMohammed Ali Nasser Ali0Abdul Hadi Nema Khalif1Doaa Alaa Lafta2Middle Technical University Technical - Engineering College-BaghdadMiddle Technical University Technical - Engineering College-BaghdadMiddle Technical University Technical - Engineering College-BaghdadThe Iraqi houses flattening the roof by a concrete panel, and because of the panels on the top directly exposed to the solar radiation become unbearably hot and cold during the summer and winter. The traditional concrete panel components are cement, sand, and aggregate, which have a poor thermal property. The usage of materials with low thermal conductivity with no negative reflects on its mechanical properties gives good improvements to the thermal properties of the concrete panel. The practical part of this work was built on a multi-stage mixing plan. In the first stage the mixing ratio based on the ratios of the sand to cement. The second stage mixing ratios based on replacing the coarse aggregate quantities with the Alabaster aggregates, and the third stage the mixing ratios based on the replacement of wood ash instead of the sand. While the fourth stage mixing ratios based on decreasing the thermal conductivity and increasing mechanical properties by adding a multilayer of a plastic net. The result shows that using a concrete panel with components (cement, sand, coarse aggregate, wood ash, and Alabaster aggregates) with a mass ratio of (1:1:2:1:1) and 3-plastic layers, gives the best improvement of the thermal properties. Where, the thermal conductivity is reduced by 42% and the specific heat increased by 41.2% as compared to the traditional concrete panel mixing ratio, with mechanical properties are agreed with the Iraqi standards.http://joe.uobaghdad.edu.iq/index.php/main/article/view/581wood ash, Alabaster aggregates, plastic layers. |
| spellingShingle | Mohammed Ali Nasser Ali Abdul Hadi Nema Khalif Doaa Alaa Lafta The Improvement of Thermal Insulating Concrete Panel Journal of Engineering wood ash, Alabaster aggregates, plastic layers. |
| title | The Improvement of Thermal Insulating Concrete Panel |
| title_full | The Improvement of Thermal Insulating Concrete Panel |
| title_fullStr | The Improvement of Thermal Insulating Concrete Panel |
| title_full_unstemmed | The Improvement of Thermal Insulating Concrete Panel |
| title_short | The Improvement of Thermal Insulating Concrete Panel |
| title_sort | improvement of thermal insulating concrete panel |
| topic | wood ash, Alabaster aggregates, plastic layers. |
| url | http://joe.uobaghdad.edu.iq/index.php/main/article/view/581 |
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