Long Term Performance Of Epoxy Bonded Rebar Couplers
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Author | : Griffin Rupp Brungraber |
Publisher | : |
Total Pages | : 334 |
Release | : 2009 |
Genre | : Concrete bridges |
ISBN | : |
Rebar-couplers that mechanically splice pairs of steel reinforcing bars, end-to-end are used regularly in reinforced concrete construction. Epoxy-bonded couplers are one available type, but have unique long-term performance considerations. The adhesive material used in these couplers is a two-part, field-mixed, ambient-cure epoxy system, originally designed for adhesive anchorage to concrete. Many of the adhesive systems used for anchorage to concrete, including the system used with adhesive-bonded couplers, are epoxy systems. The mechanical properties of these types of epoxies have been shown to degrade over time, in the presence of moisture. A variety of commercially available adhesive systems, for anchorage to concrete, were studied to assess their relative resistance to moisture-based degradation. The material properties of two of the adhesive systems, both epoxies, and the performance of the rebar-couplers were then measured over a fourteen-and-a-half-month period of exposure to a variety of environmental conditions, including water immersion at a range of temperatures. From these results, material degradation models were used to predict the properties of the adhesive over the service life of the rebar-coupler. A Finite Element Analysis (FEA) model was developed to simulate the tensile failure of the epoxy-bonded rebar-coupler system and correlate degrading adhesive material properties to changes in the coupler system's behavior throughout its service life.
Author | : Julio A. Ramirez |
Publisher | : Transportation Research Board |
Total Pages | : 131 |
Release | : 2008 |
Genre | : Concrete |
ISBN | : 030911747X |
"This report documents research performed to develop recommended revisions to the AASHTO LRFD Bridge Design Specifications to extend the applicability of the transfer, development, and splice length provisions for prestressed and non-prestressed concrete members to concrete strengths greater than 10 ksi. The report details the research performed and includes recommended revisions to the AASHTO LRFD Bridge Design Specifications. The material in this report will be of immediate interest to bridge designers."--Foreword.
Author | : ACI Committee 440 |
Publisher | : |
Total Pages | : 42 |
Release | : 2003 |
Genre | : Fiber-reinforced concrete |
ISBN | : 9780870311185 |
Author | : Amir Poursaee |
Publisher | : Woodhead Publishing |
Total Pages | : 400 |
Release | : 2023-02-20 |
Genre | : Technology & Engineering |
ISBN | : 0323851320 |
Essential reading for researchers, practitioners, and engineers, this book covers not only all the important aspects in the field of corrosion of steel reinforced concrete but also discusses new topics and future trends. Theoretical concepts of corrosion of steel in concrete structures, the variety of reinforcing materials and concrete, including stainless steel and galvanized steel, measurements and evaluations, such as electrochemical techniques and acoustic emission, protection and maintenance methods, and modelling, latest developments, and future trends in the field are discussed. - Comprehensive coverage of the corrosion of steel bars in concrete, investigating the range of reinforcing materials, and types of concrete - Introduces the latest measuring methods, data collection, and advanced modeling techniques - Second edition covers a range of new, emerging topics such as the concept of chloride threshold value, concrete permeability and chloride diffusion, the role of steel microstructure, and innovations in corrosion detection devices
Author | : |
Publisher | : |
Total Pages | : 1076 |
Release | : 1998 |
Genre | : Metallurgy |
ISBN | : |
Author | : Kenneth C. Clear |
Publisher | : Transportation Research Board |
Total Pages | : 164 |
Release | : 1995 |
Genre | : Technology & Engineering |
ISBN | : 9780309053709 |
Author | : Fernando Pacheco-Torgal |
Publisher | : Elsevier |
Total Pages | : 457 |
Release | : 2024-03-13 |
Genre | : Technology & Engineering |
ISBN | : 0443134715 |
Eco-efficient Repair and Rehabilitation of Concrete Infrastructures, Second Edition provides an updated state-of-the-art review on the latest advances in this important research field. The first section is brought fully up-to-date and focuses on deterioration assessment methods. Section two contains brand new chapters on innovative concrete repair and rehabilitation materials including: fly ash-based alkali-activated repair materials for concrete exposed to aggressive environments; repairing concrete structures with alkali-activated metakaolin mortars; concrete with micro encapsulated self-healing materials; concrete repaired with bacteria; concrete structures repaired with engineered cementitious composites; concrete repaired by electrodeposition; the assessment of concrete after repair operations and durability of concrete repair. The final section has also been amended to include six new chapters on design, Life-cycle cost analysis and life-cycle assessment. These chapters include maintenance strategies for concrete structures; a comparison of different repair methods; life cycle assessment of the effects of climate change on bridge deterioration; life-cycle-cost benefits of cathodic protection of concrete structures; life-cycle cost analyses for concrete bridges exposed to chlorides and life-cycle analysis of repair of concrete pavements. The book will be an essential reference resource for materials scientists, civil and structural engineers, architects, structural designers and contractors working in the construction industry. - Presents the latest research findings on eco-efficient repair and rehabilitation of concrete infrastructures - Provides comprehensive coverage from damage detection and assessment, to repair strategies, and structural health monitoring - Diverse author base offering insights on construction practice and employed technologies worldwide - Includes a section on innovative repair and rehabilitation materials, as well as case studies on life cycle cost analysis and LCA
Author | : |
Publisher | : |
Total Pages | : 818 |
Release | : 1996 |
Genre | : Corrosion and anti-corrosives |
ISBN | : |
Author | : American Water Works Association |
Publisher | : American Water Works Association |
Total Pages | : 286 |
Release | : 2008 |
Genre | : Science |
ISBN | : 1583215492 |
This comprehensive manual of water supply practices explains the design, selection, specification, installation, transportation, and pressure testing of concrete pressure pipes in potable water service.
Author | : Stephen Yeomans |
Publisher | : Elsevier |
Total Pages | : 316 |
Release | : 2004-11-26 |
Genre | : Technology & Engineering |
ISBN | : 0080472834 |
Reinforced concrete is one of the most widely used modern materials of construction. It is comparatively cheap, readily available, and suitable for a variety of building and construction applications. Galvanized Steel Reinforcement in Concrete provides a detailed resource covering all aspects of this important material. Both servicability and durability aspects are well covered, with all the information needed maximise the life of buildings constructed from it. Containing an up-to-date and comprehensive collection of technical information and data from world renound authors, it will be a valuable source of reference for academics, researchers, students and professionals alike. - Provides information vital to prolong the life of buildings constructed from this versatile material - Brings together a disparate body of knowledge from many parts of the world into a concise and authoritative text - Containing an up-to-date and comprehensive collection of technical information