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Effects Of Accelerated Curing On The Time Dependent Properties Of Concrete
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Book Synopsis Effects of Accelerated Curing on the Time-dependent Properties of Concrete by : Ingimar Johannsson
Download or read book Effects of Accelerated Curing on the Time-dependent Properties of Concrete written by Ingimar Johannsson and published by . This book was released on 2018 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: The long-term creep and shrinkage behaviors of concrete can greatly affect the serviceability and constructability of prestressed concrete structures. To account for these effects, it is necessary to reliably predict the deformations of the concrete through time. These calculations are particularly challenging for precast, prestressed girders, for which fabricators often use accelerated curing regimes (hot-curing) to make the concrete gain strength faster and thus increase girder production rates. With the exception of a recent study at the University of Washington (Magnuson 2016), little data previously exists on the creep and shrinkage behavior of concrete for such a curing regime. Current prediction models of creep and shrinkage have been calibrated using ambient-cured concrete tests and assume a constant stress history. They deal with variable stress histories by applying the principle of superposition. The validity of the application of the principle of superposition to creep strains has been questioned by many, and it is not computationally convenient. The objectives of this research were (1) to collect additional data on the creep and shrinkage of hot-cured concrete, (2) to study the effect of hot-curing concrete further and (3) to validate the functionality of a model proposed by Magnuson. The additional data verified that creep is affected by the hot-curing but it suggested that shrinkage strain are not affected. Several configurations of the model were calibrated, and a reasonable fit was achieved to creep data from concrete with a diverse set of loading histories. A previously suggested and simpler version of the model showed comparable results (but slightly worse), which questions the necessity of the more complex version of the model.
Book Synopsis The Effect of Cement Properties and the Thermal Compatibility of Aggregates on the Strength of Accelerated Cured Concrete by : DF. Orchard
Download or read book The Effect of Cement Properties and the Thermal Compatibility of Aggregates on the Strength of Accelerated Cured Concrete written by DF. Orchard and published by . This book was released on 1974 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most research work on the effect of the thermal expansion of the constituents of concrete has concentrated chiefly on hardened concrete. Its resistance to heating and cooling and to freezing and thawing has been used for purposes of assessment. The works of different investigators have led to considerable contradiction and no definite conclusion can be drawn on the effect of differences between the coefficients of thermal expansion of the constituents of concrete. Findings show effects on the durability under repeated cycles of freezing and thawing and the compressive strength of concrete subjected to temperature change. There is some evidence that the relative expansions of the constituents of fresh concrete cause a reduction of its ultimate strength under conditions of accelerated curing.
Book Synopsis Effect of accelerated heat curing and mix characteristics on the heat development and mechanical properties of high performance concrete by : Aykut Cetin
Download or read book Effect of accelerated heat curing and mix characteristics on the heat development and mechanical properties of high performance concrete written by Aykut Cetin and published by . This book was released on 1995 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Report SL- by : Waterways Experiment Station (U.S.) Structures Laboratory
Download or read book Technical Report SL- written by Waterways Experiment Station (U.S.) Structures Laboratory and published by . This book was released on 19?? with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Concrete in the Service of Mankind by : Ravindra Dhir
Download or read book Concrete in the Service of Mankind written by Ravindra Dhir and published by CRC Press. This book was released on 2003-06-24 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fourth volume of Concrete in the Service of Mankind focuses on radical concrete technology. Concrete is ubiquitous and unique, and is found in every developed and developing country. Indeed, there are no alternatives to concrete as a volume construction material for infrastructure. This raises important questions of how concrete should be designed and constructed for cost effective use in the the short and long term, and to encourage further radical development. Equally, it must be environmentally friendly during manufacture, in an aesthetic presentation in structures and in the containment of harmful materials. This book should be of interest to concrete technologists; contractors; civil engineers; consultants; government agencies; research organizations.
Book Synopsis Modern Prestressed Concrete by : James R. Libby
Download or read book Modern Prestressed Concrete written by James R. Libby and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was written with a dual purpose, as a reference book for practicing engineers and as a textbook for students of prestressed concrete. It represents the fifth generation of books on this subject written by its author. Significant additions and revisions have been made in this edition. Chapters 2 and 3 contain new material intended to assist the engineer in understanding factors affecting the time-dependent properties of the reinforcement and concrete used in prestressing concrete, as well as to facilitate the evaluation of their effects on prestress loss and deflection. Flexural strength, shear strength, and bond of prestressed concrete members were treated in a single chapter in the of flexural strength has third edition. Now, in the fourth edition, the treatment been expanded, with more emphasis on strain compatibility, and placed in Chapter 5 which is devoted to this subject alone. Chapter 6 of this edition, on flexural-shear strength, torsional strength, and bond of prestressed reinforce ment, was expanded to include discussions of Compression Field Theory and torsion that were not treated in the earlier editions. In similar fashion, expanded discussions of loss of prestress, deflection, and partial prestressing now are presented separately, in Chapter 7. Minor additions and revisions have been made to the material contained in the remaining chapters with the exception of xv xvi I PREFACE Chapter 17. This chapter, which is devoted to construction considerations, has important new material on constructibility and tolerances as related to prestressed concrete.
Book Synopsis Influence of Accelerated Curing on Concrete Properties by : Sem Yee Hew
Download or read book Influence of Accelerated Curing on Concrete Properties written by Sem Yee Hew and published by . This book was released on 2007 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Accelerated Curing on Hydration Products of Cement and Cement-Fly Ash Pastes by : Katharine Mather
Download or read book Effects of Accelerated Curing on Hydration Products of Cement and Cement-Fly Ash Pastes written by Katharine Mather and published by . This book was released on 1978 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accelerated curing procedures are being used more and more frequently to obtain an estimate of concrete strength by testing accelerated specimens at ages ranging from 24 hr plus or minus 15 min, 28-1/2 hr plus or minus 15 min, or 48 to 96 hr, depending on whether the warm water, the boiling water, or the autogenous curing procedure standardized in ASTM C 684 is followed. Modifications of these procedures also exist. Good correlations between strength of early accelerated specimens and that of 28-day specimens offer the advantage of evaluating the strength level of the concrete within 1 to 4 days from the time of placement which provides economies in construction by giving early warning of unsatisfactory strength. We believe that in the future design strengths will be specified as accelerated strengths.
Book Synopsis Heat Treatment by : Frank Czerwinski
Download or read book Heat Treatment written by Frank Czerwinski and published by BoD – Books on Demand. This book was released on 2012-09-26 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat treatment and surface engineering are seen as crucial elements in the design and manufacture of strategic components in a wide range of market sectors and industries including air, sea and land transportation, energy production, mining, defense or agriculture. This book offers a broad review of recent global developments in an application of thermal and thermochemical processing to modify the microstructure and properties of a wide range of engineering materials. Although there is no formal partition of the book, chapters represent two different application areas of heat treatment. The first group covers the conventional heat treatment with processing of bearing rings, wrought and cast steels, aluminum alloys, fundamentals of thermochemical treatment, details of carbonitriding and a design of cooling units. The second group describes a use of non-conventional thermal routes during manufacturing cycles of such materials as vanadium carbides, titanium dioxide, metallic glasses, superconducting ceramics, nanoparticles, metal oxides, battery materials and slag mortars. A mixture of conventional and novel applications, exploring a variety of processes employing heating, quenching and thermal diffusion, makes the book very useful for a broad audience of scientists and engineers from academia and industry.
Book Synopsis Time Dependent Concrete Properties Related to Design--strength and Elastic Properties, Creep and Shrinkage by : Michael Lee Christiason
Download or read book Time Dependent Concrete Properties Related to Design--strength and Elastic Properties, Creep and Shrinkage written by Michael Lee Christiason and published by . This book was released on 1970 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Discussion of "The Effect of Cement Properties and the Thermal Compatibility of Aggregates on the Strength of Accelerated Cured Concrete" by D. F. Orchard, R. Jones, and R. S. Al-Rawi by : K. Mather
Download or read book Discussion of "The Effect of Cement Properties and the Thermal Compatibility of Aggregates on the Strength of Accelerated Cured Concrete" by D. F. Orchard, R. Jones, and R. S. Al-Rawi written by K. Mather and published by . This book was released on 1975 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Time-temperature Study of Accelerated Curing of Concrete by : Norman Loyd BOOK
Download or read book Time-temperature Study of Accelerated Curing of Concrete written by Norman Loyd BOOK and published by . This book was released on 1973 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of AWAM International Conference on Civil Engineering 2022—Volume 2 by : Nuridah Sabtu
Download or read book Proceedings of AWAM International Conference on Civil Engineering 2022—Volume 2 written by Nuridah Sabtu and published by Springer Nature. This book was released on 2024-01-03 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the latest research, innovations, and applications in the field of civil engineering, as presented by leading national and international academics, researchers, engineers, and postgraduate students at the AWAM International Conference on Civil Engineering 2022 (AICCE’22), held in Penang, Malaysia on February 15-17, 2022. The book covers highly diverse topics in the main fields of civil engineering, including structural and earthquake engineering, environmental engineering, geotechnical engineering, highway and transportation engineering, water resources engineering, and geomatic and construction management. In line with the conference theme, “Sustainability And Resiliency: Re-Engineering the Future”, which relates to the United Nations’ 17 Global Goals for Sustainable Development, it highlights important elements in the planning and development stages to establish design standards beneficial to the environment and its surroundings. The contributions introduce numerous exciting ideas that spur novel research directions and foster multidisciplinary collaborations between various specialists in the field of civil engineering. This book is part of a 3-volume series of these conference proceedings, it represents Volume 2 in the series.
Book Synopsis Time Effects on Properties of Concrete by : Tushar K. Desai
Download or read book Time Effects on Properties of Concrete written by Tushar K. Desai and published by . This book was released on 1964 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compressive Strength of Concrete by : Pavel Krivenko
Download or read book Compressive Strength of Concrete written by Pavel Krivenko and published by BoD – Books on Demand. This book was released on 2020-03-11 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete made using mineral cements, the raw materials which on earth are practically endless, is known as one of the oldest building materials and during the last decades of the twentieth century has become a dominant building material for general use. At the same time, the requirements of the quality of concrete and its performance properties, in particular compressive strength, durability, economical efficiency, and low negative impact of its manufacture on the environment have not yet been completely met. Bearing these requirements in mind, researchers and engineers worldwide are working on how to satisfy these requirements. This book has been written by researchers and experts in the field and provides the state of the art on recent progress achieved on the properties of concrete, including concrete in which industrial by-products are utilized. The book is dedicated to graduate students, researchers, and practicing engineers in related fields.
Book Synopsis Time-temperature Study of Accelerated Curing of Concrete by : Norman L. Book
Download or read book Time-temperature Study of Accelerated Curing of Concrete written by Norman L. Book and published by . This book was released on 1973 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Steam Curing on the Important Properties of Concrete by : Elmo C. Higginson
Download or read book Effect of Steam Curing on the Important Properties of Concrete written by Elmo C. Higginson and published by . This book was released on 1960 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
