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Which risk increases when deicing salt accumulates near reinforced concrete bridge supports?

A)Rebar corrosion via chloride transport
B)Increased concrete compressive strength
C)Reduced freeze-thaw damage potential
D)Enhanced concrete hydration reactions

💡 Explanation

Rebar corrosion probability is elevated because ionic chlorides from the salt diffuse into pores. This diffusion facilitates the electro-chemical *oxidation-reduction* process via galvanic coupling between the chloride ions and steel; therefore, corrosion risk increases, rather than the alternatives which need isolation not ion permeation.

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