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Report 19: Considerations for Use in Managing the Aging of Nuclear Power Plant Concrete Structures: State-of-the-Art Report of RILEM Technical Committee 160-MLN

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Author :
Release : 1999
Genre : Concrete
Kind : eBook
Book Rating : 075/5 ( reviews)

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Book Synopsis Report 19: Considerations for Use in Managing the Aging of Nuclear Power Plant Concrete Structures: State-of-the-Art Report of RILEM Technical Committee 160-MLN by : Dan J. Naus

Download or read book Report 19: Considerations for Use in Managing the Aging of Nuclear Power Plant Concrete Structures: State-of-the-Art Report of RILEM Technical Committee 160-MLN written by Dan J. Naus. This book was released on 1999. Available in PDF, EPUB and Kindle. Book excerpt:

Management, Maintenance and Strengthening of Concrete Structures

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Author :
Release : 2002-01-01
Genre : Technology & Engineering
Kind : eBook
Book Rating : 574/5 ( reviews)

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Book Synopsis Management, Maintenance and Strengthening of Concrete Structures by : fib Fédération internationale du béton

Download or read book Management, Maintenance and Strengthening of Concrete Structures written by fib Fédération internationale du béton. This book was released on 2002-01-01. Available in PDF, EPUB and Kindle. Book excerpt: This report is the result of the work of the former FIP Commission 10: Management and strengthening of concrete structures, which replaced to the former FIP Commission 10: Maintenance, operation and use in 1995. The former CEB Commission V: Operation and Use and in particular its Task Group 5.4: Assessment, maintenance and repair also played a role in this report. When in 1998 the FIP merged with the CEB to form the fib, the well advanced writing was completed by a small editorial group. The purpose of the report is twofold: to give an overview of the issues relating to the management of concrete structures in general and to add details about assessment and remedial action, as these are important technical aspects of management and maintenance systems. The more general aspects of asset management are dealt with in Chapter 1, aimed at owners and decision-makers. Chapters 2 and 3, aimed at consultants and contractors, deal with decision-making in the assessment process. A review of remediation techniques is given in Chapter 3, intended to help in the selection of remedial actions rather than in their execution. The report also includes some significant appendices regarding load testing, monitoring and fire, and also special considerations related to seismic retrofitting. Appendix 1 offers keywords that the various actors in this field could use for a common language.

Structural Aging Program Status Report

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Author :
Release : 1995
Genre :
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Structural Aging Program Status Report by :

Download or read book Structural Aging Program Status Report written by . This book was released on 1995. Available in PDF, EPUB and Kindle. Book excerpt: Research is being conducted at the Oak Ridge National Laboratory (ORNL) under U.S. Nuclear Regulatory Commission (USNRC) sponsorship to address aging management of safety-related concrete structures. Documentation is being prepared to provide the USNRC with potential structural safety issues and acceptance criteria for use in continued service evaluations of nuclear power plants. Program accomplishments have included development of the Structural Materials Information Center containing data and information of the time variation of 144 material properties under the influence of pertinent environmental stressors of aging factors, performance assessments of reinforced concrete structures in several United Kingdom nuclear power facilities, evaluation of European and North American repair practices for concrete, an evaluation of factors affecting the corrosion of metals embedded in concrete, and application of the time-dependent reliability methodology to reinforced concrete flexure and shear structural elements to investigate the role of in-service inspection and repair on their probability of failure.

Management of the Aging of Critical Safety-related Concrete Structures in Light-water Reactor Plants

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Release : 1990
Genre :
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Book Synopsis Management of the Aging of Critical Safety-related Concrete Structures in Light-water Reactor Plants by :

Download or read book Management of the Aging of Critical Safety-related Concrete Structures in Light-water Reactor Plants written by . This book was released on 1990. Available in PDF, EPUB and Kindle. Book excerpt: The Structural Aging Program has the overall objective of providing the USNRC with an improved basis for evaluating nuclear power plant safety-related structures for continued service. The program consists of a management task and three technical tasks: materials property data base, structural component assessment/repair technology, and quantitative methodology for continued-service determinations. Objectives, accomplishments, and planned activities under each of these tasks are presented. Major program accomplishments include development of a materials property data base for structural materials as well as an aging assessment methodology for concrete structures in nuclear power plants. Furthermore, a review and assessment of inservice inspection techniques for concrete materials and structures has been complete, and work on development of a methodology which can be used for performing current as well as reliability-based future condition assessment of concrete structures is well under way. 43 refs., 3 tabs.

Interim Report on Concrete Degradation Mechanisms and Online Monitoring Techniques

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Release : 2014
Genre :
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Book Synopsis Interim Report on Concrete Degradation Mechanisms and Online Monitoring Techniques by :

Download or read book Interim Report on Concrete Degradation Mechanisms and Online Monitoring Techniques written by . This book was released on 2014. Available in PDF, EPUB and Kindle. Book excerpt: The existing fleets of nuclear power plants in the United States have initial operating licenses of 40 years, though most these plants have applied for and received license extensions. As plant structures, systems, and components age, their useful life--considering both structural integrity and performance--is reduced as a result of deterioration of the materials. The online monitoring of concrete structure conducted under the Advanced Instrumentation, Information, and Control Technologies Pathway of the Light Water Reactor Sustainability program at Idaho National Laboratory will develop and demonstrate concrete structures health monitoring capabilities. Assessment and management of aging concrete structures in nuclear plants require a more systematic approach than simple reliance on existing code margins of safety. Therefore, the structural health monitoring is required to produce actionable information regarding structural integrity that supports operational and maintenance decisions. Through this research project, several national laboratories and Vanderbilt University proposes to develop a framework of research activities for the health monitoring of nuclear power plant concrete structures that includes integration of four elements--damage modeling, monitoring, data analytics, and uncertainty quantification. This report briefly discusses available techniques and ongoing challenges in each of the four elements of the proposed framework with emphasis on degradation mechanisms and online monitoring techniques.

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