KLE DR. M. S.
SHESHGIRI COLLEGE OF ENGINEERING AND TECHNOLOGY, BELAGAVI
DEPARTMENT OF CIVIL ENGINEERING
II INTERNAL ASSESSMENT TEST – (CBCS FORMAT)
Code: 18CV825 Subject: Pavement Design Semester: VIII A&B
Max. Marks: 50 Date: 13/04/2024 Duration: 90 Mins Staff: Mrs. Niveditha M
NOTE: Question No. 1 is compulsory. Answer Any TWO Full Questions
Q.
No. QUESTIONS MARKS CO BL PO
a) Explain the following i. Allegator cracking ii. Reflection cracking 8 1 2 1
b) What are the Various types of pavement distress? Mention the cause
1. 12 2 2 1
of each one of them and explain briefly.
a) Explain the principle and design steps of California R Stabliometer
method of pavement design? 7 1 2 1
b) Calculate the design repetitions for 20 years period for various wheel
load equivalent to 22.68kN using following survey data on four lane
road.
Wheel load (kN) ADT, (Both Direction) % Traffic Volume
22.68 215 13.17
27.22 215 15.30
31.75 215 11.36
2. 36.29 215 14.11 8 3 3 1
40.82 215 6.21
45.36 215 5.84
a) Briefly explain various maintenance work of bituminous Surface. 7 1 2 1
b) Design pavement section by triaxial kanas method using following data
• Wheel load = 41kN
• E- value of subgrade soil = 10N/mm2
• E- value of Base course material = 40N/mm2
• E- value of wearing course material = 100N/mm2, which is 7.5cm
thickTraffic coefficient = 1.5
3. • Rainfall co-efficient = 0.9
• Radius of contact area = 160mm 8 3 3 1
• Design Deflection = 2.5mm
Sketch the pavement section.
a) Design the Pavement for construction of a new bypass with following data:
• Two-lane single carriageway
• Initial traffic in the year of completion of construction = 400CV/day
(sum of both directions)
• Traffic growth rate/annum = 7.50% 10 2 2 1
• Design life = 15years
4 • Vehicle damage factor (based on axle load survey) = 2.5 (std axles per
CV)
• Design CBR of subgrade soil = 4%
b) Describe the significance of wheel load and tire pressure in
Pavement? 5 2 3 1
