RC Structure, Actual Environment, Durability Investigation, Maintenance
In recent years, infrastructures that include new and/ or old one are
required the long- term management plan and/ or maintenance of constructions.
It is important for maintenance for some infrastructures to investigate a degree of
deterioration and investigation of durability.
The objectives of this study are (1) to confirm the condition of deterioration of
intended bridge at actual environment and (2) to obtain the fundamental data for
maintenance and long- term management of bridges with the survey
In this study, the durability survey of the bridge that was constructed at 1955,
and was serviced until 2010 was carried out. This paper reports the results of
this durability survey. The investigation objects are a main girder, a pier and a
floor slab. And the investigation of mechanical properties (compressive strength
and modulus of elasticity), chloride ion penetration depth, carbonation depth,
scaling resistance and pore structure with the use of MIP were carried out.