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Author : ACI Committee 232
Publisher :
ISBN 13 : 9780870319464
Total Pages : 19 pages
Book Rating : 4.3/5 (194 download)
Download or read book Report on High-volume Fly Ash Concrete for Structural Applications written by ACI Committee 232 and published by . This book was released on 2014 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : V. Mohan Malhotra
Publisher :
ISBN 13 : 9780973150728
Total Pages : 120 pages
Book Rating : 4.1/5 (57 download)
Download or read book High-performance, High-volume Fly Ash Concrete written by V. Mohan Malhotra and published by . This book was released on 2005 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vute Sirivivatnanon
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (681 download)
Download or read book Applications of High Volume Fly Ash Concretes written by Vute Sirivivatnanon and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: While the use of small proportion of fly ash in the binder of concrete is well understood and accepted in many countries, the technology relating to the use of high volume (40% by weight or more of binder) of fly ash in structural concrete is a more recent development. This paper discusses the development of high volume fly ash (HVFA) concrete in Australia and overseas with specific emphasis on its potential applications. Mix design method and data are described. It has been found that HVFA concrete can be designed within the constraints of the present Australian code of practice to give equivalent 28 day compressive strength to plain cement concrete. However, the volume stability and durability properties of HVFA concretes have been found to be significantly better than the equivalent plain cement concrete. With its inherent increased cohesiveness and long term properties, potential applications are identified and discussed with respect to the specific properties.
Author : Ahmad Fuzail Hashmi
Publisher :
ISBN 13 : 9785032986553
Total Pages : 0 pages
Book Rating : 4.9/5 (865 download)
Download or read book High Volume Fly Ash Concrete Behavior in Structural Design written by Ahmad Fuzail Hashmi and published by . This book was released on 2023-03-13 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: High Volume Fly Ash Concrete (HVFA) is a type of concrete that incorporates a large volume of fly ash as a partial replacement for Portland cement. Fly ash is a by-product of coal combustion that is collected from power plants, and it has pozzolanic properties that can enhance the durability, workability, and strength of concrete. In HVFA, the replacement of Portland cement with fly ash typically ranges from 50% to 70% by mass, resulting in a reduction in the amount of cement required and a decrease in the carbon footprint of the concrete. However, this high volume of fly ash can also affect the behavior of the concrete in structural design. One of the main challenges in designing with HVFA concrete is the potential for delayed strength development. Fly ash reacts slowly with water, and this can result in a longer period for the concrete to reach its desired strength. This delayed strength development must be taken into account in the design process to ensure that the concrete can support the intended loads. Additionally, the use of HVFA can also affect the workability and setting time of the concrete. The high amount of fly ash can make the mixtures more viscous and harder to place, and it can also result in longer setting times. This can impact the construction schedule and require adjustments to be made in the mix design and placement procedures. On the other hand, HVFA can also provide benefits in structural design. The lower heat of hydration and reduced shrinkage characteristics of HVFA can minimize the potential for cracking and improve the long-term durability of the concrete. Furthermore, the use of fly ash can contribute to the overall sustainability of the project by reducing the carbon footprint and diverting waste from landfills. Overall, the behavior of HVFA concrete in structural design requires careful consideration of its unique properties and potential challenges. With proper mix design and construction practices, HVFA can provide a durable and sustainable option for concrete structures.
Author : Rafat Siddique
Publisher : Springer Science & Business Media
ISBN 13 : 3642178669
Total Pages : 297 pages
Book Rating : 4.6/5 (421 download)
Download or read book Supplementary Cementing Materials written by Rafat Siddique and published by Springer Science & Business Media. This book was released on 2011-03-28 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an attempt to consolidate the published research related to the use of Supplementary Cementing Materials in cement and concrete. It comprises of five chapters. Each chapter is devoted to a particular supplementing cementing material. It is based on the literature/research findings published in journals/conference proceeding, etc. Topics covered in the book are; coal fly ash, silica fume (SF), granulated blast furnace slag (GGBS), metakaolin (MK), and rice husk ash (RHA). Each chapter contains introduction, properties of the waste material/by-product, its potential usage, and its effect on the properties of fresh and hardened concrete and other cement based materials.
Author : Dr. SS. Asadi & Dr. Vennam Swathi
Publisher : Laxmi Book Publication
ISBN 13 : 1304796221
Total Pages : 107 pages
Book Rating : 4.3/5 (47 download)
Download or read book INCEPTION OF HIGH-VOLUME FLY ASH WITH HYBRID FIBRE BASED CONCRETE : A PERFORMER written by Dr. SS. Asadi & Dr. Vennam Swathi and published by Laxmi Book Publication. This book was released on 2024-01-20 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: When infrastructure is built quickly, development occurs. Concrete is the go-to material for construction projects. Manufacturing cement is a significant contributor to atmospheric carbon dioxide. Using carbon-neutral materials like crimson mud or powdered snail shells can reduce cement's carbon dioxide emissions by half. As an adaptable alternative to traditional concrete, HVFA concrete has many uses. Long-lasting and useful in Plain Cement Concrete (PCC) projects, fly ash also enhances concrete's workability. The positive effects of fly ash on the environment, such as lower carbon dioxide emissions, are not new. Adding fly ash to concrete increases its strength and segregation, which reduces its price and makes it simpler to pump.
Author : Michael Hayse Wolfe
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (785 download)
Download or read book Bond Strength of High-volume Fly Ash Concrete written by Michael Hayse Wolfe and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Concrete is the most consumed man-made material in the world. Unfortunately, due to the production of cement, concrete has a large carbon footprint. Replacement of cement with fly ash, an industrial waste product, offers a sustainable alternative. The goal of this research was to explore the feasibility of using high-volume fly ash (HVFA) concrete for structural applications by testing the material's reinforcement bond properties. A series of pull-out tests and beam splice tests were performed on specimens with a 70 percent fly ash replacement of cement and then compared to identical tests performed on control specimens cast from a 100 percent portland cement mix. The pull-out tests were performed on specimens with either No. 4 or No. 6 bars, while the beam splice tests were performed on specimens with No. 6 bars with and without confinement (transverse reinforcement) along the splice zone. The data recorded from the pull-out tests supports the effectiveness of HVFA concrete in terms of bond integrity. Since the pull-out test is a comparative test, this conclusion can be drawn based on the fact that the HVFA specimens demonstrated similar bond strengths to the control specimens (based on maximum modified applied load). The only drawback from testing was that once the concrete began to crush around the reinforcing bar, slip occurred at a higher rate for the HVFA specimens. The load data collected from the splice tests, once modified for the respective specimen compressive strengths, indicates that the HVFA concrete specimens were able to support more load than the control specimens before the splice failed. These findings, along with the findings from the pull-out tests, indicate that the use of high volumes of fly ash as a cement substitute is not only feasible in terms of bond, but also superior in some cases"--Abstract, leaf iii
Author :
Publisher :
ISBN 13 :
Total Pages : 162 pages
Book Rating : 4.:/5 (318 download)
Download or read book High-volume Fly Ash Concrete Technology written by and published by . This book was released on 1992 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K. Wesche
Publisher : CRC Press
ISBN 13 : 0203626419
Total Pages : 298 pages
Book Rating : 4.2/5 (36 download)
Download or read book Fly Ash in Concrete written by K. Wesche and published by CRC Press. This book was released on 2004-03-01 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a state-of-the-art report which documents current knowledge on the properties of fly ash in concrete and the use of fly ash in construction. It includes RILEM Recommendations on fly ash in concrete and a comprehensive bibliography including over 800 references.
Author : H. T. Cao
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (681 download)
Download or read book Properties and Applications of High Volume Fly Ash Concretes written by H. T. Cao and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural grade concretes with high volume of fly ash (HVFA) have been developed in Australia since 1991. These are concretes with fly ash making up to 50 percent by weight of the total binder. In this paper, mix design method and mix design data for HVFA concretes and their mechanical properties are given. The advantages of HVFA concretes in terms of improved volume stability and durability compared with portland cement concretes of equivalent 28-day compressive strength are discussed. The suitability of these type of concretes are highlighted with respect to their properties and construction demands. Example of applications in Australia and overseas are given.
Author : V. M. Malhotra
Publisher :
ISBN 13 :
Total Pages : 101 pages
Book Rating : 4.:/5 (112 download)
Download or read book High-performance, high-volume fly ash concrete written by V. M. Malhotra and published by . This book was released on 2002 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dale P. Bentz
Publisher : CreateSpace
ISBN 13 : 9781500312497
Total Pages : 64 pages
Book Rating : 4.3/5 (124 download)
Download or read book Best Practices Guide for High-volume Fly Ash Concretes written by Dale P. Bentz and published by CreateSpace. This book was released on 2014-06-24 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: A best practices guide is developed from a synthesis of recent research on high-volume fly ash (HVFA) concrete mixtures. These best practices can be applied by the concrete construction industry to achieve desired properties and to ensure the (high) performance of HVFA concrete mixtures in practice. As such, the report considers all aspects of HVFA concrete production, from the characterization of the starting materials, through mixture proportioning and curing options to achieve desired properties, to the in-place early-age and long-term performance of the concrete in its fresh and hardened states. Both mechanical and transport properties are considered in detail. Perspective is established based on a brief review of current practices being employed nationally. Each topical section is concluded with a practice-based set of recommendations for the design and construction community. The report is intended to serve as a valuable resource to these communities, providing both a research summary and a guide to practical steps that can be taken to achieve the optimum performance of these sustainable concrete mixtures.
Author :
Publisher :
ISBN 13 :
Total Pages : 29 pages
Book Rating : 4.:/5 (185 download)
Download or read book Use of Fly Ash in Concrete written by and published by . This book was released on 1989 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zhigang Zhang
Publisher : Frontiers Media SA
ISBN 13 : 2832500579
Total Pages : 303 pages
Book Rating : 4.8/5 (325 download)
Download or read book Advanced Concretes and Their Structural Applications written by Zhigang Zhang and published by Frontiers Media SA. This book was released on 2022-09-23 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ravindra K. Dhir
Publisher : Thomas Telford
ISBN 13 : 9780727731777
Total Pages : 888 pages
Book Rating : 4.7/5 (317 download)
Download or read book Sustainable Concrete Construction written by Ravindra K. Dhir and published by Thomas Telford. This book was released on 2002 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : T. Suzuki
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (131 download)
Download or read book Application of High-volume Fly Ash Concrete written by T. Suzuki and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R C Joshi
Publisher : CRC Press
ISBN 13 : 9789056995805
Total Pages : 290 pages
Book Rating : 4.9/5 (958 download)
Download or read book Fly Ash in Concrete written by R C Joshi and published by CRC Press. This book was released on 1997-11-13 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since it was first recognized as a mineral admixture for concrete in the 1930's, fly ash has been the subject of worldwide study as researchers work to maximize its economical and environmental benefits. In recent years, investigations have focused on the physical, chemical and mineralogical characteristics of fly ash and their specific correlation to the performance of concrete. This book collects the latest results from these various studies and offers a complete review of the advantages of fly ash as an admixture in concrete, including strength development and improved chemical resistance and durability. A review of the current international standards on fly ash usage is provided, in addition to an extensive reference list and a complete survey of various other fly ash products, such as bricks, mineral wool and gypsum wall boards, as well as the use of fly ash in waste management.
