[CS7-16] PRELIMINARY FIELD SURVEY OF TRAFFIC BRIDGES WITH SHORT SPAN IN NORTHERN VIETNAM BY NON-DESTRUCTIVE METHODS
Much of the technical knowledge on concrete as a construction material originates from research and
experiences in temperate regions of the world. Under such hot condition with strong solar
radiation, the initial defects such as construction errors and early cracking are likely to occur and other subsequent
damages such as further cracking and steel corrosion may be accelerated. The past survey performed in 2007 and
2016 found that the cover spalling and steel corrosion are often found at water leakage and joint points at Bangkok.
This paper reports over 25 structures inspected in Northern Vietnam for detection on deterioration.
experiences in temperate regions of the world. Under such hot condition with strong solar
radiation, the initial defects such as construction errors and early cracking are likely to occur and other subsequent
damages such as further cracking and steel corrosion may be accelerated. The past survey performed in 2007 and
2016 found that the cover spalling and steel corrosion are often found at water leakage and joint points at Bangkok.
This paper reports over 25 structures inspected in Northern Vietnam for detection on deterioration.
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