Evaluation of Epoxy Compounds as a Material for Patching and Protecting Concrete


Book Description

The final report summarizes the results of a study of the use of epoxy compounds in the shallow surface repair and sealing of concrete bridge decks. The research effort concentrated on the use of epoxy resin systems as bonded overlays and included evaluations of test strips of seven materials on two structures in Northern Virginia, supplemented by observations of approximately fifty full-scale applications. The wearing of a thin bonded epoxy overlay exposed to traffic, as manifested in the loss of both skid resistance and protection afforded the underlying concrete, is the definitive factor in the service life of the application. The resistance to wearing of the exposed overlays observed in this study was generally disappointing and the use of an asphaltic wearing course to protect the epoxy seal coat was considered essential.




Concrete Bridge Protection and Rehabilitation


Book Description

This report presents the rapid methods used by state highway agencies for the protection, repair and rehabilitation of bridge decks. The report is based on a review of the literature; the responses to questionnaires sent to state departments of transportation, Canadian provinces, selected turnpike and thruway authorities, technology transfer centers, and material suppliers; and the evaluation of 50 bridge decks located in seven states. Polymer overlays, sealers, high-early strength hydraulic cement concrete overlays, and patches are compared for their performance characteristics and service life.







Long-term Performance of Polymer Concrete for Bridge Decks


Book Description

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 423: Long-Term Performance of Polymer Concrete for Bridge Decks addresses a number of topics related to thin polymer overlays (TPOs). Those topics include previous research, specifications, and procedures on TPOs; performance of TPOs based on field applications; the primary factors that influence TPO performance; current construction guidelines for TPOs related to surface preparation, mixing and placement, consolidation, finishing, and curing; repair procedures; factors that influence the performance of overlays, including life-cycle cost, benefits and costs, bridge deck condition, service life extension, and performance; and successes and failures of TPOs, including reasons for both.




Inspection, Evaluation and Maintenance of Suspension Bridges Case Studies


Book Description

An Insiders' Guide to Inspecting, Maintaining, and Operating BridgesSuspension bridges are graceful, aesthetic, and iconic structures. Due to their attractiveness and visibility, they are well-known symbols of major cities and countries in the world. They are also essential form of transportation infrastructure built across large bodies of water. D




Cities and Their Vital Systems


Book Description

Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.




Finite Element Analysis and Design of Steel and Steel–Concrete Composite Bridges


Book Description

This second edition of Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges is brought fully up-to-date and provides structural engineers, academics, practitioners, and researchers with a detailed, robust, and comprehensive combined finite modeling and design approach. The book's eight chapters begin with an overview of the various forms of modern steel and steel-concrete composite bridges, current design codes (American, British, and Eurocodes), nonlinear material behavior of the bridge components, and applied loads and stability of steel and steel-concrete composite bridges. This is followed by self-contained chapters concerning design examples of steel and steel-concrete composite bridge components as well as finite element modeling of the bridges and their components. The final chapter focuses on finite element analysis and the design of composite highway bridges with profiled steel sheeting. This volume will serve as a valuable reference source addressing the issues, problems, challenges, and questions on how to enhance the design of steel and steel-concrete composite bridges, including highway bridges with profiled steel sheeting, using finite element modeling techniques. - Provides all necessary information to understand relevant terminologies and finite element modeling for steel and composite bridges - Discusses new designs and materials used in highway and railway bridge - Illustrates how to relate the design guidelines and finite element modeling based on internal forces and nominal stresses - Explains what should be the consistent approach when developing nonlinear finite element analysis for steel and composite bridges - Contains extensive case studies on combining finite element analysis with design for steel and steel-concrete composite bridges, including highway bridges with profiled steel sheeting