F 10000CE467122001 Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Seventh Semester B.Tech Degree Examination (Regular and Supplementary), December 2020

Course Code: CE467
Course Name: HIGHWAY PAVEMENT DESIGN

Max. Marks: 100 Duration: 3 Hours
(Use of IRC 37-2012, IRC 58-2002/2011 and design charts are permitted)
PARTA
Answer any two full questions, each carries 15 marks. Marks

1 a) What are the two soil proportioning techniques adopted in the mechanical (7)
stabilization of soils? Explain with the help of graphs.
b) Explain in detail the procedure for Modified Hubbard-Field Method for design (8)
of bituminous mixes. How is the optimum bitumen content obtained?
2 a) State the concept of Burmister’s two-layer theory. Also list the assumptions of (8)
the theory.
b) What is meant by ESWL? How is ESWL determined based on equivalent stress (7)
criterion using the graphical method?
3 a) What are the factors to be considered in the design of flexible pavements? (8)
Mention the significance of each.

b) Explain the concept and significance of EWL factors in design of flexible (7)

pavements.
PARTB
Answer any two full questions, each carries 15 marks.
4 a) Describe the McLeod Method of flexible pavement design in detail. (5)

0) Using Kansas triaxial method, calculate the thickness of sub base, base and (10)

wearing surface courses from following data. Modulus of subgrade, base course
and wearing course (8 cm thick) being 200 kg/cm’, 600 kg/cm? and 1200 kg/cm?
respectively. Given that radius of contact = 15cm and Design deflection =
0.25cm.
Assume saturation coefficient based on rainfall as 0.9 and traffic coefficient as
1.8.Wheel load = 4080 kg.

5 a) Accement concrete pavement 15007 thick is constructed over a subgrade of k=8 (10)

kg/cm* Maximum temperature difference between top and bottom of slab during

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