Pavement Design & Highway construction — Summer 2023

Enlist the tests performed for aggregates and explain the Deval abrasion test in detail

What is the difference between bitumen and tar?

Discuss the environmental characteristics of pavement design.

Define (i) Lane distribution factor, (ii) Vehicle damage factor, and (iii) Equivalent single axle load.

Write a note on (i) cutback bitumen and (ii) bitumen emulsion.

Explain various types of joints used in concrete pavements. Point out the differences in their functions.

Explain the combined effect of temperature stress and load stress considered in concrete pavements.

Explain briefly the construction procedure of granular sub-base in bituminous pavement.

Explain the concept of fatigue failure and rutting failure in bituminous layer.

Explain the design principles for design of dowel bars and tie bars.

Distinguish between seal coat, prime coat and tack coat.

Discuss various vehicle parameters considered in design of pavement.

Mention various steps involved in pavement design of bituminous pavements as per IRC:37.

Write a note on: mud pumping.

Explain the importance of dry lean concrete in construction of rigid pavement as per IRC-49.

Mention the steps followed in estimating the quantity of aggregates and binder in surface dressing.

Discuss the causes of pavement bleeding.

Differentiate between wet mix macadam and water bound macadam.

What is Interlocking Concrete Block Pavement (ICBP). Also explain its procedure of laying.

Differentiate between hot in place and cold in place.

Write a note on pavement roughness.1

Describe various types of distresses in pavement and also explain possible surface maintenance measures.

Write a note on: slurry seal.

Explain briefly the cold mix technology as per IRC SP-100.

Explain the importance of ultra-thin white topping over the conventional white topping.