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Effect Of Temperature Match Curing On Freeze Thaw And Scaling Resistance Of High Strength Concrete
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Book Synopsis Effect of Temperature-Match-Curing on Freeze-Thaw and Scaling Resistance of High-Strength Concrete by : JA. Jonsson
Download or read book Effect of Temperature-Match-Curing on Freeze-Thaw and Scaling Resistance of High-Strength Concrete written by JA. Jonsson and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a part of a comprehensive study to evaluate the effects of elevated curing temperatures on hardened concrete properties, four non-air-entrained high-strength concrete (HSC) mixtures were prepared at temperatures ranging from 10 to 35°C. After mixing, 5.5 liters of concrete were placed inside a large polystyrene block to simulate temperature development in HSC structural members. The concrete temperature inside the block was continuously monitored with thermocouples, and collected temperature information was used to simultaneously temperature-match-cure (TMC) a series of compressive strength, scaling, and freeze-thaw specimens. The maximum recorded temperatures ranged from 59 to 69°C, depending on the fresh concrete temperature. Control specimens from each of the four mixtures were cured at room temperature. Based on the amount of residue collected during scaling tests in the presence of 3% NaCl solution, the TMC specimens were 7-63 times less resistant than the control specimens. However, during the freezing and thawing tests, seven of the eight TMC specimens outperformed their respective control specimens.
Book Synopsis Freeze-Thaw Durability of Concrete by : J. Marchand
Download or read book Freeze-Thaw Durability of Concrete written by J. Marchand and published by CRC Press. This book was released on 2004-03-01 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete durability in climates where freezing and thawing occurs is a continuing problem. It is particularly acute for highway and bridge structures, where de-icing salts are used to combat the effects of frost, snow and ice. These salts can cause damage to concrete and accelerate corrosion of reinforcements. This book presents the latest international research on this area, with contributions from North America and Europe which were presented at an international RILEM workshop.
Book Synopsis Freezing and Thawing Resistance of High-strength Concrete by : Robert E. Philleo
Download or read book Freezing and Thawing Resistance of High-strength Concrete written by Robert E. Philleo and published by . This book was released on 1986 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent developments have made a new generation of high-strength concrete a viable material for routine construction. The two principal developments are high-range water-reducing admixtures, which permit the placement of concrete of very low water-cement ratio, and silica fume, a pozzolan of extremely high fineness. The advent of this high- strength concrete has put requirements for strength and durability in conflict. Because entrained air reduces the strength of concrete, builders seek to eliminate or limit the use of entrained air. There are those who argue that high-strength concrete is of such a quality that entrained air is unnecessary. Much of the high-strength concrete currently being used is in buildings, where the question of durability is minor. The question, however, cannot be avoided in exposed highway structures. Service records of non-air-entrained high-strength concrete exposed to freezing are not conclusive. Hence, this report synthesizes the available knowledge on the subject. Its aim is to provide guidance to those who wish to use high-strength concrete in typical highway applications and to indicate where further information is needed.
Book Synopsis Effect of Initial Curing Temperatures on the Compressive Strength and Durability of Concrete by :
Download or read book Effect of Initial Curing Temperatures on the Compressive Strength and Durability of Concrete written by and published by . This book was released on 1952 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Resistance of High Strength Concrete to Cold Weather Environments by : James J. Ernzen
Download or read book Resistance of High Strength Concrete to Cold Weather Environments written by James J. Ernzen and published by . This book was released on 1992 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes an experimental laboratory evaluation program which was conducted on several high strength concrete mix designs in order to ascertain the effects of various air entrainment levels in the short and long-term performance of high strength concrete. The project included comparisons in slump, strengths, freeze-thaw cycling performance, chloride ion penetration, permeability, deicer scaling, and microscopical air void analyses.
Download or read book Concrete International written by and published by . This book was released on 1996 with total page 1128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Resistance of Concrete to Freezing and Thawing by : Donald J. Janssen
Download or read book Resistance of Concrete to Freezing and Thawing written by Donald J. Janssen and published by Strategic Highway Research Program (Shrp). This book was released on 1994 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study, aimed at improving the freeze-thaw resistance of concrete, consists of three parts. Part I evaluates parameters affecting the freeze-thaw durability of concrete. A modification of the existing standard of method for determining the durability factor of concrete specimens is proposed, and a new procedure for fundamental transverse frequency (used in durability factor calculations) has been developed. Part II focuses on developing better methods for identifying nondurable aggregates, and has resulted in a rapid new test based on the hydraulic fracture of aggregates. Part III describes field experiments to evaluate the freeze-thaw resistance of a number of specified concrete mixes and the use of sealants to mitigate D-cracking. Preliminary field performance results are presented.
Book Synopsis Cement, Concrete and Aggregates by : American Society for Testing and Materials
Download or read book Cement, Concrete and Aggregates written by American Society for Testing and Materials and published by . This book was released on 1994 with total page 630 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 Concrete : Microstructure, Properties, and Materials by : P. Mehta
Download or read book Concrete : Microstructure, Properties, and Materials written by P. Mehta and published by McGraw Hill Professional. This book was released on 2005-09-26 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook presents the art and science of concrete in a simple, clear, hands-on manner, focusing on the following: Cement and concrete are predicted to be the premier building material of the 21st Century; Includes unique diagrams, photographs, and summary tables; Updated to include new chapters on non-destructive methods for concrete; future challenges in concrete technology; an increased number of examples of concrete applications; and new developments in durability.
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 ACI Manual of Concrete Practice by : American Concrete Institute
Download or read book ACI Manual of Concrete Practice written by American Concrete Institute and published by . This book was released on 1999 with total page 1214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Failure, Distress and Repair of Concrete Structures by : Norb Delatte
Download or read book Failure, Distress and Repair of Concrete Structures written by Norb Delatte and published by Elsevier. This book was released on 2009-10-26 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding and recognising failure mechanisms in concrete is a fundamental pre-requisite to determining the type of repair, or whether a repair is feasible. This title provides a review of concrete deterioration and damage, as well as looking at the problem of defects in concrete. It also discusses condition assessment and repair techniques. Part one discusses failure mechanisms in concrete and covers topics such as causes and mechanisms of deterioration in reinforced concrete, types of damage in concrete structures, types and causes of cracking and condition assessment of concrete structures. Part two reviews the repair of concrete structures with coverage of themes such as standards and guidelines for repairing concrete structures, methods of crack repair, repair materials, bonded concrete overlays, repairing and retrofitting concrete structures with fiber-reinforced polymers, patching deteriorated concrete structures and durability of repaired concrete. With its distinguished editor and international team of contributors, Failure and repair of concrete structures is a standard reference for civil engineers, architects and anyone working in the construction sector, as well as those concerned with ensuring the safety of concrete structures. Provides a review of concrete deterioration and damage Discusses condition assessment and repair techniques, standards and guidelines
Book Synopsis High Performance Concretes by : Paul Zia
Download or read book High Performance Concretes written by Paul Zia and published by . This book was released on 1991 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: This state-of-the-art report summarizes the results of an extensive search and review of available literature on the mechanical properties of concrete, with particular reference to high performance concrete for highway applications. Included in the review and discussion are the behavior of plastic concrete as well as the strength and deformation characteristics of hardened concrete. Both short-term and long-term effects are considered. Based on the review of the available information, research needs are identified. It is concluded that much research is needed to develop data on the strength and durability properties of concrete which develops high strength, particularly very early strength.
Book Synopsis Proceedings of the Institution of Civil Engineers by :
Download or read book Proceedings of the Institution of Civil Engineers written by and published by . This book was released on 2004 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Super Absorbent Polymers (SAP) in Concrete Construction by : Viktor Mechtcherine
Download or read book Application of Super Absorbent Polymers (SAP) in Concrete Construction written by Viktor Mechtcherine and published by Springer Science & Business Media. This book was released on 2012-01-03 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the state-of-the-art report prepared by the RILEM TC “Application of Super Absorbent Polymers (SAP) in concrete construction”. It gives a comprehensive overview of the properties of SAP, specific water absorption and desorption behaviour of SAP in fresh and hardening concrete, effects of the SAP addition on rheological properties of fresh concrete, changes of cement paste microstructure and mechanical properties of concrete. Furthermore, the key advantages of using SAP are described in detail: the ability of this material to act as an internal curing agent to mitigate autogenous shrinkage of high-performance concrete, the possibility to use SAP as an alternative to air-entrainment agents in order to increase the frost resistance of concrete, and finally, the benefit of steering the rheology of fresh cement-based materials. The final chapter describes the first existing and numerous prospective applications for this new concrete additive.
Download or read book Journal of Applied Chemistry written by and published by . This book was released on 1956 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1954- include separately paged section called: Abstracts, formerly published in British abstracts B I and B II.
