Which risk increases after exposure when using high-strength prestressing steel in bridge construction in corrosive marine environments?

💡 Explanation

When exposed to corrosive marine environments, nascent hydrogen (H•) is generated, diffusing into the high-strength prestressing steel causing hydrogen embrittlement because of the decreased grain boundary strength, ultimately increasing stress corrosion cracking. Therefore, hydrogen embrittlement cracking increases, opposed to galvanic corrosion, creep or weld concerns which address other chemical/physical mechanisms.

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