Durability Study on High Calcium Fly Ash Based Geopolymer Concrete
This study presents an investigation into the durability of geopolymer concrete prepared using high calcium fly ash along with alkaline activators when exposed to 2% solution of sulfuric acid and 5% magnesium sulphate for up to 45 days. The durability was also assessed by measuring water absorption...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/731056 |
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| author | Ganesan Lavanya Josephraj Jegan |
| author_facet | Ganesan Lavanya Josephraj Jegan |
| author_sort | Ganesan Lavanya |
| collection | DOAJ |
| description | This study presents an investigation into the durability of geopolymer concrete prepared using high calcium fly ash along with alkaline activators when exposed to 2% solution of sulfuric acid and 5% magnesium sulphate for up to 45 days. The durability was also assessed by measuring water absorption and sorptivity. Ordinary Portland cement concrete was also prepared as control concrete. The grades chosen for the investigation were M20, M40, and M60. The alkaline solution used for present study is the combination of sodium silicate and sodium hydroxide solution with the ratio of 2.50. The molarity of sodium hydroxide was fixed as 12. The test specimens were 150×150×150 mm cubes, 100×200 mm cylinders, and 100×50 mm discs cured at ambient temperature. Surface deterioration, density, and strength over a period of 14, 28, and 45 days were observed. The results of geopolymer and ordinary Portland cement concrete were compared and discussed. After 45 days of exposure to the magnesium sulfate solution, the reduction in strength was up to 12% for geopolymer concrete and up to 25% for ordinary Portland cement concrete. After the same period of exposure to the sulphuric acid solution, the compressive strength decrease was up to 20% for geopolymer concrete and up to 28% for ordinary Portland cement concrete. |
| format | Article |
| id | doaj-art-654e4e33df12485ba30dc37dd56fffb6 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-654e4e33df12485ba30dc37dd56fffb62025-08-20T03:34:36ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/731056731056Durability Study on High Calcium Fly Ash Based Geopolymer ConcreteGanesan Lavanya0Josephraj Jegan1Department of Civil Engineering, University College of Engineering Ramanathapuram, Ramanathapuram 623 513, IndiaDepartment of Civil Engineering, University College of Engineering Ramanathapuram, Ramanathapuram 623 513, IndiaThis study presents an investigation into the durability of geopolymer concrete prepared using high calcium fly ash along with alkaline activators when exposed to 2% solution of sulfuric acid and 5% magnesium sulphate for up to 45 days. The durability was also assessed by measuring water absorption and sorptivity. Ordinary Portland cement concrete was also prepared as control concrete. The grades chosen for the investigation were M20, M40, and M60. The alkaline solution used for present study is the combination of sodium silicate and sodium hydroxide solution with the ratio of 2.50. The molarity of sodium hydroxide was fixed as 12. The test specimens were 150×150×150 mm cubes, 100×200 mm cylinders, and 100×50 mm discs cured at ambient temperature. Surface deterioration, density, and strength over a period of 14, 28, and 45 days were observed. The results of geopolymer and ordinary Portland cement concrete were compared and discussed. After 45 days of exposure to the magnesium sulfate solution, the reduction in strength was up to 12% for geopolymer concrete and up to 25% for ordinary Portland cement concrete. After the same period of exposure to the sulphuric acid solution, the compressive strength decrease was up to 20% for geopolymer concrete and up to 28% for ordinary Portland cement concrete.http://dx.doi.org/10.1155/2015/731056 |
| spellingShingle | Ganesan Lavanya Josephraj Jegan Durability Study on High Calcium Fly Ash Based Geopolymer Concrete Advances in Materials Science and Engineering |
| title | Durability Study on High Calcium Fly Ash Based Geopolymer Concrete |
| title_full | Durability Study on High Calcium Fly Ash Based Geopolymer Concrete |
| title_fullStr | Durability Study on High Calcium Fly Ash Based Geopolymer Concrete |
| title_full_unstemmed | Durability Study on High Calcium Fly Ash Based Geopolymer Concrete |
| title_short | Durability Study on High Calcium Fly Ash Based Geopolymer Concrete |
| title_sort | durability study on high calcium fly ash based geopolymer concrete |
| url | http://dx.doi.org/10.1155/2015/731056 |
| work_keys_str_mv | AT ganesanlavanya durabilitystudyonhighcalciumflyashbasedgeopolymerconcrete AT josephrajjegan durabilitystudyonhighcalciumflyashbasedgeopolymerconcrete |