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What is the impact of severe coefficient of thermal expansion differences within bridge components having vast differences in the concrete strength?

How to overcome thermal cracks and possible of water leak at interface within normal concrete component and ultra-high performance concrete component?

in Structure 48,820 points 106 195 351

1 Answer

2 votes
Thermal contraction on the concrete’s surface without a corresponding change in its interior temperature will cause a thermal differential and potentially lead to cracking. Joints are the most effective way to control cracking.

Polyurea joint filler products is one of the solution since this material is resistant to moisture, has high adhesion properties when used with concrete, and will cure in very cold weather. An advantage of polyurea used as a crack sealant is that the flexibility of the material will accommodate  temperature-related movement.
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