Yumi Inokawa
Research on load bearing ability evaluation method of steel reinforced concrete floor version that receives the salt damage by antifreezing agent
Masatsugu Nagai
The antifreezing agent scattered on road melts to rain water etc. , and the part permeates into a floor version from cracks of a pavement side,and causes the salt damage of steel reinforced concrete floor version. This paper pays attention about salt damage deterioration by the antifreezing agent of steel reinforced concrete floor version,and the performance of a deteriorated steel reinforced concrete floor version is evaluated by load-Bending relation.
First, Static loading the damage from salt breeze true RC floor version.And I grasp baending load power-resistant and Shear load power-resistant of pushing.
Next,I analyze a modulus of elasticity of the concrete as a parameter.Finally,I perform Basic examination to examine relation between Reinforcement corrosion and adhesion power.
The following summarizes the findings of this study.
The true RC floor version that it lower part exfoliated decreases baending load power-resistant and Shear load power-resistant of pushing together.
A case of area rate of detachment of top surface is 40%, near value in Shear load power-resistant of pushing is provided by using a modified expression in consideration of a crazing angle.
A case of reinforcing rod section rate of decline by corrosion is 15%,becomes almost behavior adhesion power of state without gnarl.
Bend of RC floor version deteriorated by damage from salt was appreciable by considered the deterioration of concrete by the reinforcement corrosion and the adhesion power of concrete and the steel.
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