Which risk increases when post-tensioned concrete beam tendons experience corrosion induced hydrogen embrittlement?

💡 Explanation

When tendons corrode, hydrogen embrittlement weakens the steel due to hydrogen atoms diffusing into the metal lattice, reducing its fracture toughness. Therefore sudden brittle fracture is more likely, rather than creep, reduced ductility, or alkali-silica reaction, which involve different failure mechanisms.

• Which risk increases when an antenna receives excessive multipath signals?
• Which consequence results when a transmitting laser in a fiber optic communication system experiences chirp?
• Which risk increases when hydroelectric turbine operates at a cavitation inception number lower than its design value?
• Which risk increases in a hydraulic actuator when valve timing exacerbates negative pressure?
• Which consequence results when shear stress exceeds web design strength in steel I-beams?
• Which consequence results when quench cracking initiates in a steel support column after rapid cooling?