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Maintenance, Repair and Rehabilitation (MR&R) Practice for Concrete Bridge Decks

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Maintenance, Repair and Rehabilitation (MR&R) Practice for Concrete Bridge Decks

Maintenance, Repair and Rehabilitation (MR&R) Practice for Concrete Bridge Decks

Tae Hoon Hong

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Over the years, existing bridges have had various degrees of maintenance to extend the service life. As the existing bridges continue to deteriorate, however, each Department of Transportation (DOT) of the United States of America faces increasing demands on the limited funds available for bridge maintenance. Therefore, it is very important for State Department of Transportations to establish Maintenance, Repair, and Rehabilitation (MR&R) strategies for bridge structures such that funds get allocated for appropriate maintenance over the service life. This paper identifies the state-of-art and the state-of-practice of MR&R actions and the use of MR&R strategies in concrete bridge decks. In addition, a questionnaire survey was conducted to identify the type and timing for MR&R actions as well as existing MR&R strategies taken in concrete bridge deck by each DOT. This paper also presents the results of the survey.

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Abstract

1. INTRODUCTION

2. FAILURE MODES OF BRIDGES

3. MAINTENANCE, REPAIR, AND REHABILITATION ACTIONS IN BRIDGES

4. MR&R ACTIONS ON CONCRETE BRIDGE DECKS

5. QUESTIONNAIRE SURVEY

6. TYPE AND TIMING OF MR&R ACTIONS TAKEN IN CONCRETE BRIDGE DECKS BY THE DOTS

7. BRIDGE MAINTENANCE, REPAIR, AND REHABILITATION(MR&R) STRATEGY

8. CONCLUSION AND SUMMARY

ACKNOWLEDGEMENTS

REFERENCES

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