High Temperature Resistant Fly Ash Based Geopolymer Composites
High Temperature Resistant Fly Ash Based Geopolymer Composites

Author: Ravindra Thakur

Publisher: LAP Lambert Academic Publishing

Published: 2011-03

Total Pages: 148

ISBN-13: 9783844311273

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Fly ash based geopolymeric binders have potential for a wide range of high temperature applications and it is receiving more attention due to their economic and environmental advantages. This kind of Geopolymeric materials possess intrinsic fire resistance due to their rigid 3-D aluminosilicate structure. Geopolymer specimens remains dimensionally stable at high temperature and provides good compressive strength also. The percentage of Na2O and SiO2/Na2O ratio affect development of internal pore structure of Geopolymers and subsequently its performance at elevated temperature. The characterisation of internal pore structure can be made by using simple experimentation like measuring water absorption, apparent porosity and water sorptivity as well as some sophisticated mineralogical and microstructure studies like SEM, XRD, MIP etc. also. This book records a huge experimental observations and explained intricate behavioural aspects of fly ash based geopolymer exposed elevated temperature. It will help the researchers and technologists to produce high temperature resistant geopolymer for different engineering applications.

Geopolymers
Geopolymers

Author: J L Provis

Publisher: Elsevier

Published: 2009-06-22

Total Pages: 469

ISBN-13: 1845696387

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A geopolymer is a solid aluminosilicate material usually formed by alkali hydroxide or alkali silicate activation of a solid precursor such as coal fly ash, calcined clay and/or metallurgical slag. Today the primary application of geopolymer technology is in the development of reduced-CO2 construction materials as an alternative to Portland-based cements. Geopolymers: structure, processing, properties and industrial applications reviews the latest research on and applications of these highly important materials.Part one discusses the synthesis and characterisation of geopolymers with chapters on topics such as fly ash chemistry and inorganic polymer cements, geopolymer precursor design, nanostructure/microstructure of metakaolin and fly ash geopolymers, and geopolymer synthesis kinetics. Part two reviews the manufacture and properties of geopolymers including accelerated ageing of geopolymers, chemical durability, engineering properties of geopolymer concrete, producing fire and heat-resistant geopolymers, utilisation of mining wastes and thermal properties of geopolymers. Part three covers applications of geopolymers with coverage of topics such as commercialisation of geopolymers for construction, as well as applications in waste management.With its distinguished editors and international team of contributors, Geopolymers: structure, processing, properties and industrial applications is a standard reference for scientists and engineers in industry and the academic sector, including practitioners in the cement and concrete industry as well as those involved in waste reduction and disposal. Discusses the synthesis and characterisation of geopolymers with chapters covering fly ash chemistry and inorganic polymer cements Assesses the application and commercialisation of geopolymers with particular focus on applications in waste management Reviews the latest research on and applications of these highly important materials

Fire Safety Design and Concrete
Fire Safety Design and Concrete

Author: T. Z. Harmathy

Publisher: Addison-Wesley Longman Limited

Published: 1993-01-01

Total Pages: 412

ISBN-13: 9780582076877

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This series comprises works on subjects of topical interest in the broad field of concrete technology. Written or edited by international authorities, the books should appeal to engineers, consultants, academics, students and others involved in the areas covered.

Fire-Resistant Geopolymers
Fire-Resistant Geopolymers

Author: Les Vickers

Publisher: Springer

Published: 2014-12-05

Total Pages: 135

ISBN-13: 9812873112

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The book covers the topic of geopolymers, in particular it highlights the relationship between structural differences as a result of variations during the geopolymer synthesis and its physical and chemical properties. In particular, the book describes the optimization of the thermal properties of geopolymers by adding micro-structural modifiers such as fibres and/or fillers into the geopolymer matrix. The range of fibres and fillers used in geopolymers, their impact on the microstructure and thermal properties is described in great detail. The book content will appeal to researchers, scientists, or engineers who are interested in geopolymer science and technology and its industrial applications.

Geopolymer Composite for High Temperature Exposure
Geopolymer Composite for High Temperature Exposure

Author: Mohd Mustafa Al Bakri Abdullah

Publisher: LAP Lambert Academic Publishing

Published: 2012-02

Total Pages: 76

ISBN-13: 9783848406852

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GEOPOLYMER COMPOSITE FOR HIGH TEMPERATURE EXPOSURE describes about basic geopolymer process, chemical reaction and the behaviour of fly ash-based geopolymer when expose to high temperature. Different important factors (e.g. NaOH molarity, activator-to-fly ash ratios, curing condition, etc.) influencing the processing of the fly ash-based geopolymer were investigated. These experimental results are utilized to propose a new method for geopolymer cement processing and the design of geopolymer concrete mixtures. Experimental data on the characterization and properties of the geopolymer cement and concrete are then presented. Final part of this book also describes the impact of the mechanical treatment (Ball milling), elevated temperature on the properties of fly ash geopolymers, geopolymer refractory material and the application of these geopolymers as lightweight materials.

Calcined Clays for Sustainable Concrete
Calcined Clays for Sustainable Concrete

Author: Fernando Martirena

Publisher: Springer

Published: 2017-10-27

Total Pages: 546

ISBN-13: 9402412077

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This volume focuses on research and practical issues linked to Calcined Clays for Sustainable Concrete. The main topics are geology of clays, hydration and performance of blended system with calcined clays, alkali activated binders, applications in concrete and mortar, durability of concrete under various aggressive conditions, and economic and environmental impacts of the use of calcined clays in cement based materials. This book compiles the different contributions of the 2nd International Conference on Calcined Clays for Sustainable Concrete, which took place in La Habana, December 5th-7th, 2017.The papers update the latest research in their field, carried out since the last conference in 2015. Overall it gives a broad view of research on calcined clays and their application in the field of construction, which will stimulate further research into calcined clays for sustainable concrete.

Alkali Activated Materials
Alkali Activated Materials

Author: John L. Provis

Publisher: Springer Science & Business Media

Published: 2013-11-19

Total Pages: 396

ISBN-13: 9400776721

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This is a State of the Art Report resulting from the work of RILEM Technical Committee 224-AAM in the period 2007-2013. The Report summarises research to date in the area of alkali-activated binders and concretes, with a particular focus on the following areas: binder design and characterisation, durability testing, commercialisation, standardisation, and providing a historical context for this rapidly-growing research field.

Handbook of Alkali-Activated Cements, Mortars and Concretes
Handbook of Alkali-Activated Cements, Mortars and Concretes

Author: F. Pacheco-Torgal

Publisher: Elsevier

Published: 2014-11-20

Total Pages: 855

ISBN-13: 1782422889

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This book provides an updated state-of-the-art review on new developments in alkali-activation. The main binder of concrete, Portland cement, represents almost 80% of the total CO2 emissions of concrete which are about 6 to 7% of the Planet’s total CO2 emissions. This is particularly serious in the current context of climate change and it could get even worse because the demand for Portland cement is expected to increase by almost 200% by 2050 from 2010 levels, reaching 6000 million tons/year. Alkali-activated binders represent an alternative to Portland cement having higher durability and a lower CO2 footprint. Reviews the chemistry, mix design, manufacture and properties of alkali-activated cement-based concrete binders Considers performance in adverse environmental conditions. Offers equal emphasis on the science behind the technology and its use in civil engineering.

Fly Ash Based Geopolymer Composites
Fly Ash Based Geopolymer Composites

Author: Ravindra Thakur

Publisher: LAP Lambert Academic Publishing

Published: 2011-01

Total Pages: 164

ISBN-13: 9783843392389

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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.