Factors Affecting The Fire Resistance Properties Of Fly Ash Concrete PDF Download
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| Author | : Hisham Tarek Mohamed Hafez |
| Publisher | : |
| Total Pages | : 198 |
| Release | : 2016 |
| Genre | : Building materials |
| ISBN | : |
Download Factors Affecting the Fire Resistance Properties of Fly Ash Concrete Book in PDF, ePub and Kindle
Abstract: While a lot of research has been conducted under on sustainable building materials towards exploring the mechanical and physical properties of fly ash as a recycled material that replaces ordinary portland cement in concrete, little has been directed towards testing its fire resistance properties. Due to the growing need to use fly ash based concrete and the severity of fire, the third most reason for casualties in building inhabitants, this research is directed into exploring the fire resistance properties of fly ash based concrete. After conducting the literature review, the following hypothesis was formulated: not only does fly ash affect the behavior of the concrete, but also other test variables like the oven temperature, the curing period and several others. Therefore, an experimental program was formulated based on the literature findings in order to validate this hypothesis. Four hundred and eighty specimens were prepared to see whether the change in fly ash percentage, oven temperature, coarse aggregate size, curing time, curing method and steel reinforcement affects the fire resistance of concrete. Within the limitations of the experimental testing program, the following main findings can be stated; a) Concrete fire resistance property could be measured by a strength reduction index (Beta) that measures the decrease in compressive strength before and after being exposed to elevated temperatures, b) 30% FA samples has 20-25% higher Beta values than OPC Concrete in the early curing days (3 and 7), c) 30% FA samples has 10% higher Beta values on average in all tested oven temperatures, and d) concrete cured manually has higher Beta values than the ones in the curing room at 200 and 800 degrees.
| Author | : K. Wesche |
| Publisher | : CRC Press |
| Total Pages | : 298 |
| Release | : 2004-03-01 |
| Genre | : Architecture |
| ISBN | : 0203626419 |
Download Fly Ash in Concrete Book in PDF, ePub and Kindle
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 | : Satish Chandra |
| Publisher | : Elsevier |
| Total Pages | : 451 |
| Release | : 2002-10-28 |
| Genre | : Technology & Engineering |
| ISBN | : 081551820X |
Download Lightweight Aggregate Concrete Book in PDF, ePub and Kindle
In spite of the increasing use and demand for lightweight aggregate concrete (LWAC), there is still a lack of adequate explanations to understand the mechanisms responsible for the strength and durability properties of LWAC. This book is written to give an overall picture of LWAC, from the historical background, aggregate production, proportioning and production of concrete, to applications in structures. Physical properties and chemical durability are described in detail. The physical properties include density, strength, shrinkage, and elasticity. Chemical durability includes resistance to acids, chloride ingress, carbonation, and freeze-thaw resistance. Fire resistance is also included, which is seldom considered, but is a very important aspect of the safety of the structure. Microstructure development and its relation to the durability properties of LWAC generally are not highlighted in the literature. The development of bonds, the microstructure with different binder systems, and different types of lightweight aggregates are explained. They show how lightweight aggregate concrete differs from normal weight concrete. The chapters on chloride ingress and freeze-thaw resistance are detailed because of the use of LWAC in offshore construction. The economical aspects of using LWAC are also reviewed. Emphasis is placed on the fact that although the cost of LWAC is high, the total cost of construction has to be considered, including the cost of transport, reinforcement, etc. When these are considered then LWAC becomes cheaper and attractive. The life cycle cost of the concrete is another consideration for calculating long-term savings on maintenance costs.
| Author | : J L Provis |
| Publisher | : Elsevier |
| Total Pages | : 469 |
| Release | : 2009-06-22 |
| Genre | : Technology & Engineering |
| ISBN | : 1845696387 |
Download Geopolymers Book in PDF, ePub and Kindle
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
| Author | : R C Joshi |
| Publisher | : CRC Press |
| Total Pages | : 290 |
| Release | : 1997-11-13 |
| Genre | : Technology & Engineering |
| ISBN | : 9789056995805 |
Download Fly Ash in Concrete Book in PDF, ePub and Kindle
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.
| Author | : Lindon K.A. Sear |
| Publisher | : Thomas Telford |
| Total Pages | : 278 |
| Release | : 2001-10-15 |
| Genre | : Science |
| ISBN | : 9780727730152 |
Download Properties and Use of Coal Fly Ash Book in PDF, ePub and Kindle
This book draws together a large quantity of research that has been carried out on pulverised fuel ash (PFA) over the past 30 years.In addition to covering the potential uses of PFA it provides an overview of the benefits of use.
| Author | : M. D. A. Thomas |
| Publisher | : |
| Total Pages | : 24 |
| Release | : 2007 |
| Genre | : Concrete |
| ISBN | : |
Download Optimizing the Use of Fly Ash in Concrete Book in PDF, ePub and Kindle
The optimum amount of fly ash varies not only with the application, but also with composition and proportions of all the materials in the concrete mixture (especially the fly ash), the conditions during placing (especially temperature), construction practices (for example, finishing and curing) and the exposure conditions. This document discusses issues related to using low to very high levels of fly ash in concrete and provides guidance for the use of fly ash without compromising the construction process or the quality of the finished product. The nature of fly ashes including their physical, mineralogical and chemical properties is covered in detail, as well as fly ash variability due to coal composition and plant operating conditions. A discussion on the effects of fly ash characteristics on fresh and hardened concrete properties includes; workability, bleeding, air entrainment, setting time, heat of hydration, compressive strength development, creep, drying shrinkage, abrasion resistance, permeability, resistance to chlorides, alkali-silica reaction (ASR), sulfate resistance, carbonation, and resistance to freezing and thawing and deicer salt scaling. Case studies were selected as examples of some of the more demanding applications of fly ash concrete for ASR mitigation, chloride resistance, and green building.
| Author | : James T Dikeou |
| Publisher | : |
| Total Pages | : 28 |
| Release | : 1975 |
| Genre | : Concrete |
| ISBN | : |
Download Fly Ash Increases Resistance of Concrete to Sulfate Attack Book in PDF, ePub and Kindle
| Author | : Les Vickers |
| Publisher | : Springer |
| Total Pages | : 135 |
| Release | : 2014-12-05 |
| Genre | : Technology & Engineering |
| ISBN | : 9812873112 |
Download Fire-Resistant Geopolymers Book in PDF, ePub and Kindle
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.
| Author | : Joseph F. Lamond |
| Publisher | : ASTM International |
| Total Pages | : 661 |
| Release | : 2006 |
| Genre | : Technology & Engineering |
| ISBN | : 0803133677 |
Download Significance of Tests and Properties of Concrete and Concrete-making Materials Book in PDF, ePub and Kindle
