Question

Select the correct option with regard to the following statements (S1, S2) pertaining to pavements. S1 : Present serviceability index is used for the functional evaluation of pavement surface condition. S2 : Rigid pavements are less affected by temperature variations than flexible pavements.

• A. Statement S1 is true and Statement S2 is false.
• B. Both statements S1 and S2 are false
• C. Statement S1 is false and Statement S2 is true
• D. Both Statements S1 and S2 are true

Answer 1

Answer: (A)

• Present serviceability index is used for the functional evaluation of pavement surface condition. • Rigid pavements or concrete pavements are impacted by temperature changes through alterations in expansion and contraction movements and subsequently cracks form. • Temperature variations cause curling and thermal-expansion stresses within the concrete.