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Which thermodynamic consequence results when moisture accumulation freezes within pavement?

A)Increased tensile stress and cracking
B)Reduced shear strength stability
C)Enhanced thermal expansion cohesion
D)Decreased compressive load threshold

💡 Explanation

Freezing water expands causing increased volume, which then generates large internal forces, with ice undergoing a phase transition in a confined space. Cracking arises because the tensile stress surpasses the concrete’s cohesive strength; therefore option A is correct, rather than alternatives changing other material properties.

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