Physicomechanical properties of nano-silica effect on geopolymer composites
Addition of Nano-SiO2 (NS) to geopolymer composites has been studied through measurement of compressive strengths, Fourier Transformer Infra-Red (FTIR) and X-ray diffraction (XRD) analysis. Alumino–silicate materials are coarse aggregate included waste concrete and demolished walls with its cementin...
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| Format: | Article |
| Language: | English |
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University Amar Telidji of Laghouat
2016-05-01
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| Series: | Journal of Building Materials and Structures |
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| Online Access: | http://journals.lagh-univ.dz/index.php/jbms/article/view/20 |
| _version_ | 1818876172502564864 |
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| author | Hisham Mustafa Mohamed Khater |
| author_facet | Hisham Mustafa Mohamed Khater |
| author_sort | Hisham Mustafa Mohamed Khater |
| collection | DOAJ |
| description | Addition of Nano-SiO2 (NS) to geopolymer composites has been studied through measurement of compressive strengths, Fourier Transformer Infra-Red (FTIR) and X-ray diffraction (XRD) analysis. Alumino–silicate materials are coarse aggregate included waste concrete and demolished walls with its cementing binder, cement kiln dust (CKD) used and can possess a pronouncing activation for the geopolymer reaction resulting from the high alkali contents within. Materials prepared at water/binder ratios in a range of 0.30: 0.40 under curing of 40 oC and 100% R.H, while the used activator is sodium hydroxide in the ratio of 2 wt. %. First, CKD is added in the ratio from 10 up to 50 wt., %, and the demolished walls was varied depending on the used CKD content, while using constant ratio of waste concrete (40 wt., %). Second step, depending on the optimum CKD ratio resulted from the first one (40 wt. %), so the control geopolymer mix composed of CKD, demolished walls and waste concrete in the ratio (40:20:40, wt %). NS partially replaced waste concrete by 1 up to 8%. Results indicated that, compressive strengths of geopolymer mixes incorporating NS were obviously higher than those control one, especially at early ages and specially with 3%NS. |
| first_indexed | 2024-12-19T13:38:10Z |
| format | Article |
| id | doaj.art-5b33c202cc884173865348f178969325 |
| institution | Directory Open Access Journal |
| issn | 2353-0057 |
| language | English |
| last_indexed | 2024-12-19T13:38:10Z |
| publishDate | 2016-05-01 |
| publisher | University Amar Telidji of Laghouat |
| record_format | Article |
| series | Journal of Building Materials and Structures |
| spelling | doaj.art-5b33c202cc884173865348f1789693252022-12-21T20:19:06ZengUniversity Amar Telidji of LaghouatJournal of Building Materials and Structures2353-00572016-05-013111410.5281/zenodo.24242920Physicomechanical properties of nano-silica effect on geopolymer compositesHisham Mustafa Mohamed Khater0Housing and Building National Research Centre (HBNRC), 87 El-Tahreer St., Dokki, Giza, CairoAddition of Nano-SiO2 (NS) to geopolymer composites has been studied through measurement of compressive strengths, Fourier Transformer Infra-Red (FTIR) and X-ray diffraction (XRD) analysis. Alumino–silicate materials are coarse aggregate included waste concrete and demolished walls with its cementing binder, cement kiln dust (CKD) used and can possess a pronouncing activation for the geopolymer reaction resulting from the high alkali contents within. Materials prepared at water/binder ratios in a range of 0.30: 0.40 under curing of 40 oC and 100% R.H, while the used activator is sodium hydroxide in the ratio of 2 wt. %. First, CKD is added in the ratio from 10 up to 50 wt., %, and the demolished walls was varied depending on the used CKD content, while using constant ratio of waste concrete (40 wt., %). Second step, depending on the optimum CKD ratio resulted from the first one (40 wt. %), so the control geopolymer mix composed of CKD, demolished walls and waste concrete in the ratio (40:20:40, wt %). NS partially replaced waste concrete by 1 up to 8%. Results indicated that, compressive strengths of geopolymer mixes incorporating NS were obviously higher than those control one, especially at early ages and specially with 3%NS.http://journals.lagh-univ.dz/index.php/jbms/article/view/20nanostructuressol-gel growthamorphous materialscomposite materialsinorganic compounds |
| spellingShingle | Hisham Mustafa Mohamed Khater Physicomechanical properties of nano-silica effect on geopolymer composites Journal of Building Materials and Structures nanostructures sol-gel growth amorphous materials composite materials inorganic compounds |
| title | Physicomechanical properties of nano-silica effect on geopolymer composites |
| title_full | Physicomechanical properties of nano-silica effect on geopolymer composites |
| title_fullStr | Physicomechanical properties of nano-silica effect on geopolymer composites |
| title_full_unstemmed | Physicomechanical properties of nano-silica effect on geopolymer composites |
| title_short | Physicomechanical properties of nano-silica effect on geopolymer composites |
| title_sort | physicomechanical properties of nano silica effect on geopolymer composites |
| topic | nanostructures sol-gel growth amorphous materials composite materials inorganic compounds |
| url | http://journals.lagh-univ.dz/index.php/jbms/article/view/20 |
| work_keys_str_mv | AT hishammustafamohamedkhater physicomechanicalpropertiesofnanosilicaeffectongeopolymercomposites |