Fly ash Based Geopolymer Composites: Manufacturing and Engineering Properties

Thakur, Ravindra, Ghosh, Somnath

ISBN 10: 3843392382 / ISBN 13: 9783843392389

Published by LAP LAMBERT Academic Publishing, 2011

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Bibliographic Details

• Title: Fly ash Based Geopolymer Composites: Manufacturing and Engineering Properties
• Publisher: LAP LAMBERT Academic Publishing
• Publication Date: 2011
• Language: English
• ISBN 10: 3843392382
• ISBN 13: 9783843392389
• Binding: Paperback
• Condition: Like New
• Book Type: book

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Synopsis

Geopolymers are currently attracting widespread attention due to their potential utilization as high performance, environmental friendly and sustainable alternative to Portland cement. The present research reports the manufacturing process and engineering properties of low calcium fly ash based geopolymer composites. Initially, the effect of geopolymer synthesizing parameters such as alkali content, silicate content, water content, sand content,curing temperature and duration of thermal curing on compressive strength have been presented for certain level of understanding regarding geopolymer manufacturing process. Further study on engineering properties of geopolymer composite revealed that %Na2O and SiO2/Na2O ratio of the geopolymer mix considerably affect workability and setting time of fresh geopolymer mix as well as physico-mechanical properties of hardened geopolymer specimens. X-ray diffracton analysis of geopolymer show formation of new crystalline phases like hydroxysodalite and herschelite, at higher alkali and silica content that influenced microstructure and engineering properties.Based on the experimental results a mix design guidelines have been proposed.

About the Author

Dr.Ravindra N. Thakur:M.E.(Civil),Ph.D.;currently a Senior Lecturer in the Department of Civil Engineering at Government Polytechnic, Mumbai, India. His main area of research is fly ash based geopolymer composites. Dr.Somnath Ghosh:M.Tech.,Ph.D.; currently a Professor in the Department of Civil Engineering at Jadavpur University, Kolkata, India.