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GATE 2020 CE (CE1) – Question 41

Highway Pavements · Design of flexible and rigid pavements · 2 marks · Multiple choice

A dowel is placed at a concrete contraction joint. Contraction cracks occur at predetermined locations. Which arrangement shows correct dowel placement and crack location?

Diagram for GATE 2020 CE (CE1) question 41
  1. Figure A
  2. Figure B
  3. Figure C
  4. Figure D

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Show answer and explanation

Correct answer: (B) Figure B

Explanation

The dowel lies at approximately mid-depth and crosses the intended transverse contraction joint. The saw cut or groove is aboutd/3 tod/4 deep and initiates a crack directly beneath it. **B** shows the dowel atd/2 with the crack at the joint,allowing load transfer while accommodating contraction.