PROGNOSTIC EVALUATION OF MANAGEMENT NEEDS FOR TWO BRIDGE STRUCTURES

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SHAYAN A.; XU A.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING) Year:2001 | Volume:2 | Issue:1 Page(s): 31-41

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Information Journal Paper

Title

PROGNOSTIC EVALUATION OF MANAGEMENT NEEDS FOR TWO BRIDGE STRUCTURES

Author(s)

SHAYAN A. | XU A. | Issue Writer Certificate

Keywords

CONCRETE

MARINE ENVIRONMENT

CORROSION

CHLORIDE DIFFUSION

CORROSION RATE

Abstract

Corrosion of steel reinforcement in bridge structures is of concern to the State Road Authorities (RAS) who control in excess of 8,000 CONCRETE bridges and 16,000 culverts. This paper deals with investigations on two Victorian bridges, located in an aggressive MARINE ENVIRONMENT, to estimate their service life and determine their management needs. The bridges are multi-span structures carrying major traffic over tidal rivers and are 9 and 30 years old. The work relates to the identification of potential CORROSION problems at an early stage, before damage becomes visible, so that early intervention can be adopted to protect the integrity of the structure and extend their service life. Both field and laboratory investigations have been carried out on the bridges, including electrochemical measurements (half-cell potential, receptivity, CORROSION rate), strength testing, determination of carbonation depth and chloride penetration profile, and petrography examination of CONCRETE. The results have shown that the CONCRETE quality is good and there is currently no visible CORROSION. However, considerable cr has penetrated the CONCRETE at the base of columns and pile cap, but it has not reached the level of the reinforcement. Electrochemical data also indicate that these areas are at risk. Based on the results of the investigations the paper discusses the remaining service life of the structure and its management needs in order to extend its service life.

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APA: Copy

SHAYAN, A., & XU, A.. (2001). PROGNOSTIC EVALUATION OF MANAGEMENT NEEDS FOR TWO BRIDGE STRUCTURES. ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), 2(1), 31-41. SID. https://sid.ir/paper/298569/en

Vancouver: Copy

SHAYAN A., XU A.. PROGNOSTIC EVALUATION OF MANAGEMENT NEEDS FOR TWO BRIDGE STRUCTURES. ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING)[Internet]. 2001;2(1):31-41. Available from: https://sid.ir/paper/298569/en

IEEE: Copy

A. SHAYAN, and A. XU, “PROGNOSTIC EVALUATION OF MANAGEMENT NEEDS FOR TWO BRIDGE STRUCTURES,” ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), vol. 2, no. 1, pp. 31–41, 2001, [Online]. Available: https://sid.ir/paper/298569/en

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