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Evaluation Of Engineering Properties Of Hydrated Fly Ash As A Flexible Base Material
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Book Synopsis Evaluation of Engineering Properties of Hydrated Fly Ash as a Flexible Base Material by : A. S. M. Ashek Rana
Download or read book Evaluation of Engineering Properties of Hydrated Fly Ash as a Flexible Base Material written by A. S. M. Ashek Rana and published by . This book was released on 1996 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guidelines for Using Hydrated Fly Ash as a Flexible Base by : Phillip T. Nash
Download or read book Guidelines for Using Hydrated Fly Ash as a Flexible Base written by Phillip T. Nash and published by . This book was released on 1996 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Updating Physical and Chemical Characteristics of Fly Ash for Use in Concrete by : Prasanth Tanikella
Download or read book Updating Physical and Chemical Characteristics of Fly Ash for Use in Concrete written by Prasanth Tanikella and published by . This book was released on 2018-02-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: When incorporated in concrete mixtures, fly ashes are known to influence both its fresh and hardened properties. An accurate and quick technique to predict the extent of this influence based on the characteristics of fly ash would be highly beneficial in terms of field applications. The current study was an attempt to quantify the effects of fly ashes on the properties of pastes as a function of: (a) the mean particle size of the fly ash particles, (b) their fineness and (c) their chemical composition. In addition, since the type and the amount of glass present in the fly ash significantly affect its reactivity, this property was also included in the investigation.Twenty different fly ashes (both, ASTM Class C and Class F), obtained from power plants in and around Indiana, were characterized during the Phase 1 of the study. The information collected included: physical characteristics, chemical composition and the amount and type of glass present. Phase 2 of the study consisted of evaluation of various properties of binary paste systems (portland cement with 20% of cement of fly replacement). The evaluated properties included: the set time, the heat of hydration, the strength activity index, the non-evaporable water content and the amount of calcium hydroxide formed at different ages.These results obtained from both phases of the study were used to build statistical models for prediction of previously evaluated properties for any hypothetical fly ash with similar characteristics. The models included only the most significant variables, i.e., those which were found to most strongly affect any specific property. The variables to be included in the model were selected based on the adjusted R2 values.As a result of the modeling process, it was found that the sets of statistically significant variables affecting the properties consisted of both physical and chemical characteristics of the fly ash and that the combination of these variables was unique for each property evaluated.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Book Synopsis Handbook of Fly Ash by : Kamal K. Kar
Download or read book Handbook of Fly Ash written by Kamal K. Kar and published by Butterworth-Heinemann. This book was released on 2021-11-07 with total page 869 pages. Available in PDF, EPUB and Kindle. Book excerpt: The drive to develop more sustainable materials has made fly ash a valuable raw material in many different applications. Comprehensive and authoritative, Handbook of Fly Ash highlights the latest research efforts to develop the properties of fly ash to maximum utility while safeguarding the environment. This book takes an interdisciplinary approach to the research into the classification and compositions of various types of fly ash, such as bottom ash and boiler slag, special classes of fly ash, and their sources around the globe. This is followed by a discussion of fly ash-reinforced composites, such as elastomer-based composites and metal matrix composites. This book also covers a wide range of applications of fly ash in cement, concrete, bricks and blocks, road construction, wastewater treatment, and scrubber sludge solidification. Highlights the recent developments in the utilization of fly ash including its preparation, functionalization, properties, and handling. Places a focus on a wide variety of fly ash applications including recent innovations, such as alkali-activated binder, polypropylene composite, and geopolymer concrete. Includes comprehensive coverage of the characteristics of fly ash with a particular focus on health hazards if it is not properly disposed. Discusses fly ash-reinforced composites, such as polymer/elastomer-based composites and metal matrix composites.
Book Synopsis Engineering Properties and Construction Guidelines for Soil Stabilized with Self-cementing Fly Ash by : Zachary Guy Thomas
Download or read book Engineering Properties and Construction Guidelines for Soil Stabilized with Self-cementing Fly Ash written by Zachary Guy Thomas and published by . This book was released on 2003 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research was initiated to evaluate the engineering properties and to observe the short and long-term behavior of soil stabilized with self-cementing fly ash. Typically Iowa soils have low strength due to high fines content. Five Iowa soils ranging from ML to CH were used in this study as well as self-cementing fly ash from eight Iowa power plants. Fly ash addition had a profound effect on the compaction characteristics of the soils. The influences of fly ash content, moisture content, and compaction delay on compressive strength were observed for samples molded with ISU 2-in x 2-in apparatus as well as standard 4-inch diameter Proctor equipment. Long-term strength gain was evaluated for samples that were over 2.5 years old. California Bearing Ration (CBR) of fine-grained soils was also increased substantially with the addition of fly ash. Strength gain was also tested for samples cured in various environments. Freeze-thaw and wet-dry durability of soils were increased and reductions in plasticity characteristics were observed with fly ash addition. The morphology of soil-fly ash mixtures was studied as well as the clay mineralogy of the soils used in the study. In addition to the study of soil-fly ash mixtures, previous ISU research involving hydrated and conditioned fly ash was continued. The research utilized four sources of hydrated fly ash (HFA) and two sources of conditioned fly ash (CFA) from Iowa. Moisture content, curing temperature and time all had an impact on the strength gain of HFA and CFA. Shear strength parameter values for these materials were also determined. In addition to evaluating the strength of HFA and CFA alone, these two types of materials were also tested as soil stabilizers. The final part of research was to use the information determined in the previous tests to develop construction guidelines. Three construction guidelines were developed for use in Iowa. Two of these guidelines described the procedures for using HFA and CFA as select fill under pavement structures, while the third set of guidelines was developed for constructing sections of self-cementing fly ash stabilized soil.
Book Synopsis Properties and Use of Coal Fly Ash by : Lindon K.A. Sear
Download or read book Properties and Use of Coal Fly Ash written by Lindon K.A. Sear and published by Thomas Telford. This book was released on 2001-10-15 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Fly Ash Soil Stabilization for Non-uniform Subgrade Soils: Engineering properties and construction guidelines by :
Download or read book Fly Ash Soil Stabilization for Non-uniform Subgrade Soils: Engineering properties and construction guidelines written by and published by . This book was released on 2005 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil treated with self-cementing fly ash is increasingly being used in Iowa to stabilize pavement subgrades, but without a complete understanding of the short- and long-term behavior. To develop a broader understanding of fly ash engineering properties, mixtures of five different soil types, ranging from ML to CH, and several different fly ash sources (including hydrated and conditioned fly ashes) were evaluated.
Book Synopsis Fly Ash in Concrete by : Edward Amin Abdun-Nur
Download or read book Fly Ash in Concrete written by Edward Amin Abdun-Nur and published by . This book was released on 1961 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is based on a review of the literature on the subject from 1934-1959, supplemented by examination of structures in which fly ash was been used, visits to laboratories engaged in work on fly ash, discussions with individuals currently engaged in research and construction involving fly ash--all considered in the light of the writer's experience and judgment.
Download or read book Fossil Energy Update written by and published by . This book was released on 1982 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wm. Tarleton, Stephen Webster and Ephraim Kingsbury Overseers of Lottery for Haverhill Academy by :
Download or read book Wm. Tarleton, Stephen Webster and Ephraim Kingsbury Overseers of Lottery for Haverhill Academy written by and published by . This book was released on 1808 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Impact Assessment of Recycled Wastes on Surface and Ground Waters by : Tarek A. Kassim
Download or read book Environmental Impact Assessment of Recycled Wastes on Surface and Ground Waters written by Tarek A. Kassim and published by Springer. This book was released on 2005-07-11 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 2: Risk Analysis. This 3-volume reference presents the latest findings in impact assessment of recycled hazardous waste materials on surface and ground waters. Topics covered include chemodynamics, toxicology, modeling and information systems. The book serves as a practical guide for the monitoring, design, management, or conduct of environmental impact assessment. Each volume contains the table of contents of all volumes.
Book Synopsis Field Performance Evaluation of Hydrated, Fly-ash Bases in the Atlanta District--Year 5 by : Cindy K. Estakhri
Download or read book Field Performance Evaluation of Hydrated, Fly-ash Bases in the Atlanta District--Year 5 written by Cindy K. Estakhri and published by . This book was released on 2001 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fly Ash Soil Stabilization for Non-uniform Subgrade Soils by : David J. White (Ph. D.)
Download or read book Fly Ash Soil Stabilization for Non-uniform Subgrade Soils written by David J. White (Ph. D.) and published by . This book was released on 2005 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil treated with self-cementing fly ash is increasingly being used in Iowa to stabilize fine-grained pavement subgrades, but without a complete understanding of the short- and long-term behavior. To develop a broader understanding of fly ash engineering properties, mixtures of five different soil types, ranging from ML to CH, and several different fly ash sources (including hydrated and conditioned fly ashes) were evaluated. Results show that soil compaction characteristics, compressive strength, wet/dry durability, freeze/thaw durability, hydration characteristics, rate of strength gain, and plasticity characteristics are all affected by the addition of fly ash. Specifically, Iowa self-cementing fly ashes are effective at stabilizing fine-grained Iowa soils for earthwork and paving operations; fly ash increases compacted dry density and reduces the optimum moisture content; strength gain in soil-fly ash mixtures depends on cure time and temperature, compaction energy, and compaction delay; sulfur contents can form expansive minerals in soil-fly ash mixtures, which severely reduces the long-term strength and durability; fly ash increases the California bearing ratio of fine-grained soil-fly ash effectively dries wet soils and provides an initial rapid strength gain; fly ash decreases swell potential of expansive soils; soil-fly ash mixtures cured below freezing temperatures and then soaked in water are highly susceptible to slaking and strength loss; soil stabilized with fly ash exhibits increased freeze-thaw durability; soil strength can be increased with the addition of hydrated fly ash and conditioned fly ash, but at higher rates and not as effectively as self-cementing fly ash. Based on the results of this study, three proposed specifications were developed for the use of self-cementing fly ash, hydrated fly ash, and conditioned fly ash. The specifications describe laboratory evaluation, field placement, moisture conditioning, compaction, quality control testing procedures, and basis of payment.
Book Synopsis Evaluation [of] Fly Ash in Concrete by : Edward A. Abdun-Nur
Download or read book Evaluation [of] Fly Ash in Concrete written by Edward A. Abdun-Nur and published by . This book was released on 1959 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Field Performance Evaluation of Hydrated, Fly Ash Bases in the Atlanta District by : Cindy K. Estakhri
Download or read book Field Performance Evaluation of Hydrated, Fly Ash Bases in the Atlanta District written by Cindy K. Estakhri and published by . This book was released on 2000 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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