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Which type of joint is used to divide large concrete pavement areas into smaller panels to control cracking?

47. Which type of joint is used to divide large concrete pavement areas into smaller panels to control cracking?

1. Construction joint
2. Contraction joint
3. Isolation joint
4. Expansion joint

Answer

The correct answer is: C) Isolation joint

Explanation

Isolation joints are placed to separate different concrete sections and prevent cracking caused by shrinkage and differential movement.