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← TechnologyWhich risk significantly increases when temperature constraints are ignored during concrete column curing?
A)Delayed ettringite formation (DEF)✓
B)Increased carbonation resistance
C)Improved freeze-thaw durability
D)Reduced chloride penetration depth
💡 Explanation
Excessive heat of hydration causes high internal temperatures, resulting in delayed ettringite formation (DEF) because ettringite forms after concrete has hardened rather than during initial setting. This disruptive expansion leads to cracking therefore, DEF risk increases rather than experiencing improved durability.
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