GATE CE concept:rigid-pavements PYQs & Answers

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concept:rigid-pavements

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Questions 1–3 of 3. Imported answers require independent review unless marked reviewed.

Topic practice 3 questionsPage 1 of 1

Consider the following statements with respect to rigid pavements:

Statement-1: Bottom-up cracking (BU) in rigid pavements is caused at the edge of the slab due to combined effect of single or tandem rear axle load and positive temperature differential.

Statement-2: Top-down fatigue cracking (TD) in rigid pavements is caused due to repeated cycles of axle loads and negative temperature differential.

The CORRECT option is:

Your answerChoose one option.

Both statements are TRUE.

Statement-1 is TRUE, but Statement-2 is FALSE.

Statement-1 is FALSE, but Statement-2 is TRUE.

Both statements are FALSE.

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Which of the following statements is/are TRUE with respect to the type of stresses to be considered for the design of rigid pavements?

Your answerSelect all correct options. You can choose more than one.

Warping stress due to temperature differential between the top and bottom of the pavement slab as a result of daily variation in temperature

Frictional stress due to the overall increase or decrease in temperature of the pavement slab as a result of seasonal variation in temperature

Critical stress obtained as the maximum of the wheel load stress, the warping stress, and the frictional stress

Critical stress obtained as the sum of wheel load stresses at edge, interior, and corner of the pavement slab

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The radii of relative stiffness of the rigid pavements P and Q are denoted by

and

, respectively. The geometric and material properties of the concrete slab and underlying soil are given below:

Pavement	Thickness of Slab	Subgrade Reaction Modulus
	Concrete	Soil
P
Q

The ratio (up to one decimal place) of

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GATE CE concept:rigid-pavements PYQs

How to practice concept:rigid-pavements

Question 40

Question 45

Question 54