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Author: Dr. Ashad Ullah Qureshi Publisher: Concepts Books Publication ISBN: Category : Technology & Engineering Languages : en Pages : 72
Book Description
Today there is practically no concrete without admixtures or construction chemicals. They are used in concrete at the time of construction or during maintenance/ repairs to produce several desirable properties. Twenty years ago, construction chemicals were rarely adopted in India, but today there is a great awareness among practicing Engineers, contractors and public about the use of construction chemicals. To suit the demand, in India, a number of companies are emerging in the field of construction chemicals. Plenty of such products are available in the market. But there are no specifications and standards about their usage. In the absence of these norms, the companies advertise their products as Hi-tech and Super stuff. The only literature available is the manufacturers' brochures. Therefore the user finds it very difficult to choose a particular product. A comprehensive study about these chemicals was made in this work to evaluate their performance by conducting a series of laboratory tests
Author: Dr. Ashad Ullah Qureshi Publisher: Concepts Books Publication ISBN: Category : Technology & Engineering Languages : en Pages : 72
Book Description
Today there is practically no concrete without admixtures or construction chemicals. They are used in concrete at the time of construction or during maintenance/ repairs to produce several desirable properties. Twenty years ago, construction chemicals were rarely adopted in India, but today there is a great awareness among practicing Engineers, contractors and public about the use of construction chemicals. To suit the demand, in India, a number of companies are emerging in the field of construction chemicals. Plenty of such products are available in the market. But there are no specifications and standards about their usage. In the absence of these norms, the companies advertise their products as Hi-tech and Super stuff. The only literature available is the manufacturers' brochures. Therefore the user finds it very difficult to choose a particular product. A comprehensive study about these chemicals was made in this work to evaluate their performance by conducting a series of laboratory tests
Author: R. Seracino Publisher: Taylor & Francis ISBN: 1135290520 Category : Technology & Engineering Languages : en Pages : 1005
Book Description
The range of fibre-reinforced polymer (FRP) applications in new construction, and in the retrofitting of existing civil engineering infrastructure, is continuing to grow worldwide. Furthermore, this progress is being matched by advancing research into all aspects of analysis and design. The Second International Conference on FRP Composites in
Author: FIB – International Federation for Structural Concrete Publisher: FIB - Féd. Int. du Béton ISBN: 2940643008 Category : Technology & Engineering Languages : en Pages : 2322
Book Description
This Proceedings contains the papers of the fib Symposium “CONCRETE Innovations in Materials, Design and Structures”, which was held in May 2019 in Kraków, Poland. This annual symposium was co-organised by the Cracow University of Technology. The topics covered include Analysis and Design, Sustainability, Durability, Structures, Materials, and Prefabrication. The fib, Fédération internationale du béton, is a not-for-profit association formed by 45 national member groups and approximately 1000 corporate and individual members. The fib’s mission is to develop at an international level the study of scientific and practical matters capable of advancing the technical, economic, aesthetic and environmental performance of concrete construction. The fib, was formed in 1998 by the merger of the Euro-International Committee for Concrete (the CEB) and the International Federation for Prestressing (the FIP). These predecessor organizations existed independently since 1953 and 1952, respectively.
Author: FIB – International Federation for Structural Concrete Publisher: FIB - International Federation for Structural Concrete ISBN: 2883941327 Category : Technology & Engineering Languages : en Pages : 242
Book Description
In December 1996, CEB established a Task Group with the main objective to elaborate design guidelines for the use of FRP reinforcement in accordance with the design format of the CEB-FIP Model Code and Eurocode2. With the merger of CEB and FIP into fib in June 1998, this Task Group became fib TG 9.3 FRP Reinforcement for concrete structures in Commission 9 Reinforcing and Prestressing Materials and Systems. Finally, as a result of the restructuring of fib’s Commissions and Task Groups at the end of 2014, the Task Group became fib T5.1 FRP Reinforcement for concrete structures, chaired by Stijn Matthys at Ghent University, in Commission 5 Reinforcements. The work of former TG 9.3 and current T5.1 was performed by two working parties (WP), one of which is “Externally Applied Reinforcement” (EAR), which produced fib bulletin 14 “Externally bonded FRP reinforcement for RC structures” in July 2001. Following a number of years of relatively slow activity, the WP on externally applied reinforcement was reactivated and started working on an update of bulletin 14. The result of this work is summarised in the present technical report, which aims to give design guidelines on the use of externally applied FRP reinforcement (both externally bonded and near-surface mounted) for concrete structures. An attempt has been made to present some of the topics in a Eurocode-compatible format, so that the material covered may form the basis for the introduction of composites in the next version of Eurocode 2 and for the updating of the text on seismic retrofitting with composites in the next version of Eurocode 8. All persons who participated in the preparation of this Bulletin are mentioned in the copyright page. Further acknowledgements are due to Josée Bastien (Canada), Hans Rudolf Ganz (Switzerland) and Luc Taerwe (Belgium) for revision of the document. To all members of the working party on externally applied reinforcement our sincere thanks are expressed for the high quality and extensive work brought in on a voluntary basis.
Author: Paul Zia Publisher: ISBN: Category : Fiber-reinforced concrete Languages : en Pages : 262
Book Description
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.
Author: Alexander M. Vaysburd Publisher: ISBN: Category : Binders (Materials) Languages : en Pages : 88
Book Description
If the durability of repaired concrete structures is a primary objective of any repair project, then every effort should be made to ensure adequate bonding between the repair and the existing concrete substrate. A total of 257 partial-depth cores in 77 experimental repairs were tested in Florida, Illinois, and Arizona in order to evaluate the effect of material properties and environmental conditions on the bond between repair and concrete substrate. Three pull-off testing devices were used to determine the bond strengths for each of the experimental repairs. In addition, the testing devices themselves were evaluated by analyzing the magnitude and relative precision of the pull-off strengths, modes of failure, and ease of use in an effort to identify a reliable and practical device for determining in situ tensile bond. The optimum depth of core drilling into the existing substrate was determined by comparing theoretical finite element analysis of failure zone stress distribution with measured test results.
Author: Dr. Ashad Ullah Qureshi
Author: Dr. Ashad Ullah Qureshi
Author: Waterways Experiment Station (U.S.) Structures Laboratory
Author: Zhigang Zhang
Author: 
Author: R. Seracino
Author: FIB – International Federation for Structural Concrete
Author: FIB – International Federation for Structural Concrete
Author: Paul Zia
Author: Alexander M. Vaysburd
Author: National Institute of Standards and Technology (U.S.)