Development of Internally Cured Concrete for Increased Service Life PDF Download
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Author: John Schlitter
Publisher:
ISBN: 9781622600311
Category :
Languages : en
Pages :
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Book Description
Author: John Schlitter
Publisher:
ISBN: 9781622600311
Category :
Languages : en
Pages :
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Book Description
Author: Waleed Khalid Hamid
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages :
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Book Description
The long-term performance of a bridge deck depends on its resistance to bridge cracking. Most of these cracks are initiated at the early age. Early age cracking of bridge decks is a typical issue in the U.S. that reduces bridge service life. Therefore, internally cured concrete (ICC) has been used in some states to reduce or eliminate the development of cracks in reinforced concrete decks. In this study, the early age behavior of ICC deck and the effect of the internal curing on the long-term behavior of the bridge was measured and evaluated in the laboratory and field for newly adjacent constructed bridge, which were located on Route 271 in Mayfield, Ohio. Two different types of concrete mixtures were utilized for the decks: conventional concrete (CC) and internally cured concrete (ICC). Firstly, the ICC and CC mixtures were examined in the laboratory in terms of a mechanical properties test, a plastic shrinkage test, a free shrinkage test, and a restrained shrinkage test. Second, the field behavior of an ICC deck and an adjacent CC deck during their early age and long-term performance were evaluated. Also, the shrinkage development for both decks was examined during the very early age. Instrumentation was used to measure the concrete and reinforcement strains and the temperature in both bridges. The instrumentation and results for both bridges are discussed. Laboratory results indicated that using pre-wetted lightweight concrete in the concrete mixture led to decreased density, coefficient of thermal expansion, and free shrinkage strain, and increased tensile strength and cracking time of concrete compared to conventional concrete. In the field, from the early age test, it was observed that the time to develop concrete shrinkage was approximately 5-6 hours after casting the deck of the ICC and the CC.
Author: Baoguo Han
Publisher: Springer
ISBN: 9811043493
Category : Technology & Engineering
Languages : en
Pages : 409
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Book Description
This book presents the latest research advances and findings in the field of smart/multifunctional concretes, focusing on the principles, design and fabrication, test and characterization, performance and mechanism, and their applications in infrastructures. It also discusses future challenges in the development and application of smart/multifunctional concretes, providing useful theory, ideas and principles, as well as insights and practical guidance for developing sustainable infrastructures. It is a valuable resource for researchers, scientists and engineers in the field of civil-engineering materials and infrastructures.
Author: W. Jason Weiss
Publisher:
ISBN:
Category :
Languages : en
Pages : 166
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Book Description
Author: Peter C. Taylor
Publisher: CRC Press
ISBN: 0203866134
Category : Technology & Engineering
Languages : en
Pages : 215
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Book Description
Curing is one of those activities that every civil engineer and construction worker has heard of, but in reality does not worry about much. In practice, curing is often low on the list of priorities on the construction site, particularly when budgets and timelines are under pressure. Yet the increasing demands being placed on concrete mixtures also
Author: P. Kumar Mehta
Publisher: McGraw Hill Professional
ISBN: 0071797874
Category : Technology & Engineering
Languages : en
Pages : 704
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Book Description
"Comprehensive coverage of the properties, behavior, and technology of concrete--complete with PowerPoint slides and videos--updated to include the latest advances in concrete technology"--
Author: Dejian Shen
Publisher: Springer Nature
ISBN: 9811983984
Category : Technology & Engineering
Languages : en
Pages : 348
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Book Description
This monograph is written based on the author's research on the assessment, control, and repair of cracking of early-age concrete in the recent decade. The technique of internal curing for increasing cracking resistance of early-age concrete is further developed through experimental and theoretical research. It establishes models for predicting the internal relative humidity and autogenous shrinkage of internally cured concrete at early age; reveals the variation law and mechanism of early-age tensile creep of internally cured concrete; and explores the variation law and mechanism of early-age cracking resistance of internally cured concrete under continuous restrained condition or uniaxial restrained condition. It is designed as a reference work for professionals or practitioners and a textbook for undergraduates or postgraduates. As such, this book provides valuable knowledge, useful methods, and practical experience that can be considered in the field of concrete cracking control.
Author: John Kevern
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 36
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Book Description
Author: Kienan Dalesandro
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
A significant portion of municipal solid waste has traditionally been addressed through recycling; however, the recycling market has become unreliable due to the stringent contamination regulations imposed by Chinas new recycling policy. Solid waste can be addressed through incineration which reduces the volume of the waste. Waste-to-Energy facilities provide an efficient means to carry out the incineration process by generating electricity through steam generation. Although it is not completely waste free, this process leaves a by-product known as municipal solid waste incinerator ash that can be further refined into a lightweight sand material known as reclaimed sands. This work investigates the use of reclaimed sands from the York County Solid Waste Authority in York, PA as a partial replacement for fine aggregates to make internally cured concrete. In internally cured concrete, interior particles release water during the cement hydration process and effectively help the mix cure from the inside out. This leads to a less permeable concrete that increases the freeze-thaw resistance, reduces chloride permeability, and improves the shrinkage resistance of the material. Reclaimed sands are effective internal curing aggregates, since they have a high absorption capacity and the ability to desorb water at a high relative humidity. The testing performed in this work explores the durability of internally cured concrete manufactured with reclaimed sands by assessing the freeze thaw resistance, rapid chloride permeability, and compressive strength of the concrete. As is discussed in later chapters of this work, it was found that reclaimed sands are a suitable replacement for lightweight aggregate in internal curing concrete applications.
Author:
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 113
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Book Description
Internally cured concrete has been rapidly emerging over the last decade as an effective way to improve the performance of concrete. Internal curing (IC) holds promise for producing concrete with an increased resistance to early-age cracking and enhanced durability. It is a simple and effective way to cure concrete.
