Evaluation of Epoxy-coated Reinforcing Steel

Evaluation of Epoxy-coated Reinforcing Steel
Author: Wallace T. McKeel
Publisher:
Total Pages: 28
Release: 1993
Genre: Bridges
ISBN:

Virginia's first installation of epoxy-coated reinforcing steel, which was opened to traffic in 1977, was evaluated during construction and through 13 years of service. It was apparent at the time of construction that the integrity of the coating application did not meet the requirements of the specifications There were many flaws and holidays in the coatings on all of the bars, and patching with a liquid epoxy compound was not effective. Although the applicability of the findings, which are based on an application that does not represent the best practice, may be limited, useful information on the durability of the coated steel and its role in protecting the deck was developed. It was found that the coated reinforcement was exposed to relatively high chloride concentrations at transverse cracks in the decks early in the life of the structures, but the decks remained in good condition throughout the evaluation period. It was concluded that despite the poor coatings, the coated reinforcing steel contributed to the deck's durability by providing enhanced protection at critical cracked sections. Rebars taken from deck cores showed no signs of rusting, although the steel had a dull dark gray finish that may be underfilm corrosion. No debonding of the coating was evident.

Report

Report
Author:
Publisher:
Total Pages: 398
Release: 2006
Genre: Highway research
ISBN:

Concrete Bridge Deck Performance

Concrete Bridge Deck Performance
Author: H. G. Russell
Publisher: Transportation Research Board
Total Pages: 188
Release: 2004
Genre: Bridges
ISBN: 0309070112

At head of title: National Cooperative Highway Research Program.

Steel Corrosion in Concrete

Steel Corrosion in Concrete
Author: Arnon Bentur
Publisher: CRC Press
Total Pages: 214
Release: 1997-10-09
Genre: Technology & Engineering
ISBN: 9780419225300

Poor durability of concrete is a major cause of problems in modern building and civil engineering structures in all countries: the annual cost of investigating and repairing deteriorating reinforced concrete structures runs into many millions of pounds. This book explains the fundamentals of the corrosion of steel in concrete. It is comprehensive and provides a basis for the practising engineer to design concrete structures which avoid the problem using modern concepts and specifications. A limited discussion of corrosion measurement and repairs is also provided.

Performance Assessment of Concrete Structures and Engineered Barriers for Nuclear Applications

Performance Assessment of Concrete Structures and Engineered Barriers for Nuclear Applications
Author: Valérie L'Hostis
Publisher: Springer
Total Pages: 95
Release: 2016-09-06
Genre: Technology & Engineering
ISBN: 9402409041

The main outcomes of RILEM TC-226-CNM are summarized in this book. Key input was provided by researchers from countries that are main contributors in the R&D, design, construction, operation, and regulation of waste nuclear reinforced concrete facilities. Nuclear power plants and many of the facilities and structures used for the management of radioactive waste materials generated by the fuel cycle use concrete in their construction. RILEM TC 226 CNM covered several areas including functional and performance requirements for concrete structures; degradation processes; phenomenological modelling, field experiences, tests approaches, instrumentation and monitoring methods dedicated to performance assessments; service-life models; aging Management of Nuclear Power Plants, repair techniques; codes and standards specific to radioactive waste facilities.