Which risk increases significantly when improperly tensioning prestressing tendons in concrete beams?

💡 Explanation

When prestressing tendons are improperly tensioned, insufficient bonding force arises because of reduced compressive stresses. This causes sudden tendon slippage transferring all tensile force to a small concrete area resulting in debonding and explosive spalling. Therefore spalling is highest risk, rather than creep, buckling, or corrosion each having distinct required condition sets.

• Which outcome occurs when grid transformer banks experience unexpected reactive power demand across unbalanced three-phase systems?
• Which outcome follows induced current surge occurs within secondary winding of installed current transformer (CT) circuit?
• Which system behavior results from inadequate guard band spacing in WDM optical fiber?
• In robotic arm control featuring multiple links which risk is greatest if shaft encoders experience resolution limits?
• Which outcome occurs when a three-phase power system experiences single-phasing condition?
• Which risk increases when hydraulic actuators used in aircraft landing gear experience low reservoir pressure?