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:
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:
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.
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.
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:
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:
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.
Download or read book Sustainable Construction and Building Materials written by Bibhuti Bhusan Das and published by Springer. This book was released on 2018-12-30 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select proceedings of the International Conference on Sustainable Construction and Building Materials (ICSCBM 2018), and examines a range of durable, energy-efficient, and next-generation construction and building materials produced from industrial wastes and byproducts. The topics covered include alternative, eco-friendly construction and building materials, next-generation concretes, energy efficiency in construction, and sustainability in construction project management. The book also discusses various properties and performance attributes of modern-age concretes including their durability, workability, and carbon footprint. As such, it offers a valuable reference for beginners, researchers, and professionals interested in sustainable construction and allied fields.
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.
Download or read book Utilisation of High Volume Fly Ash Concrete for Engineering Applications written by Vute Sirivivatnanon and published by . This book was released on 1991 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Biopolymers and Biotech Admixtures for Eco Efficient Construction Materials written by Fernando Pacheco-Torgal and published by Woodhead Publishing. This book was released on 2016-01-11 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1930 more than 100,000 new chemical compounds have been developed and insufficient information exists on the health assessment of 95 percent of these chemicals in which a relevant percentage are used in construction products. For instance Portland cement concrete, the most used material on the Planet (10.000 million tons/year that in the next 40 years will increase around 100 %) currently used in around 15% of total concrete production contains chemicals used to modify their properties, either in the fresh or hardened state. Biopolymers are materials that are developed from natural resources. They reduce dependence on fossil fuels and reduce carbon dioxide emissions. There is a worldwide demand to replace petroleum-based materials with renewable resources. Currently bio-admixtures represent just a small fraction of the chemical admixtures market (around 20%) but with environmental awareness for constituents in construction materials generally growing (the Construction Products Regulation is being enforced in Europe since 2013), the trend towards bio-admixtures is expected to continue. This book provides an updated state-of-the-art review on biopolymers and their influence and use as admixtures in the development of eco-efficient construction materials. Provides essential knowledge for researchers and producers working on the development of biopolymer-modified construction materials Discusses the various types of biopolymers currently available, their different production techniques, their use as bio-admixtures in concretes and mortars and applications in other areas of civil engineering such as soil stability, wood preservation, adhesives and coatings All contributions are made from leading researchers, who have intensive involvement in the design and use of biopolymers in construction materials
Download or read book Methods for Evaluating Fly Ash for Use in Highway Concrete written by Lawrence L. Sutter and published by Transportation Research Board. This book was released on 2013 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) 749: Methods for Evaluating Fly Ash for Use in Highway Concrete presents suggested changes to coal fly ash specifications and test protocols contained in American Association of State Highway and Transportation Officials (AASHTO) Standard Specifications for Transportation Materials and Methods of Sampling and Testing (AASHTO M 295). The changes suggested include modifications to the test methods currently specified for evaluating acceptability of fly ash for use in highway concrete as well as the introduction of new test methods for enhancing such evaluations. Attachment C: Details of the Research into Methods for Evaluating Fly Ash Use in Highway Concrete is only available online."--Publisher description.
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:
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 236 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.
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.
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:
