Durability Study on High Calcium Fly Ash Based Geopolymer Concrete
Joint Authors
Lavanya, Ganesan
Jegan, Josephraj
Source
Advances in Materials Science and Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-11-26
Country of Publication
Egypt
No. of Pages
7
Abstract EN
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.
American Psychological Association (APA)
Lavanya, Ganesan& Jegan, Josephraj. 2015. Durability Study on High Calcium Fly Ash Based Geopolymer Concrete. Advances in Materials Science and Engineering،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1053648
Modern Language Association (MLA)
Lavanya, Ganesan& Jegan, Josephraj. Durability Study on High Calcium Fly Ash Based Geopolymer Concrete. Advances in Materials Science and Engineering No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1053648
American Medical Association (AMA)
Lavanya, Ganesan& Jegan, Josephraj. Durability Study on High Calcium Fly Ash Based Geopolymer Concrete. Advances in Materials Science and Engineering. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1053648
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1053648