Name of the University : Mahatma Gandhi University
Department : Civil Engineering
Degree : M.Tech
Subject Code/Name : MCETE 206-2/Highway Material
Sem : II
Website : mgu.ac.in
Document Type : Model Question Paper
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/mgu.ac.in/5252-MCETE%20206_2%20Hiighway%20Materials(1).doc
MGU Highway Material Question Paper
M.TECH. Degree Examination :
Branch : Civil Engineering
Specialization – Transportation Engineering
Related : MGU MCETE204 Pavement Evaluation M.Tech Model Question Paper : www.pdfquestion.in/5251.html
Model Question Paper :
Second Semester :
MCETE 206-2 Highway Material : (Elective IV)
(Regular – 2011Admission onwards)
Time: 3 Hours
Maximum Marks: 100
Sample Questions
1. (a) What is meant by bitumen emulsions? State their merits and demerits in pavement construction. What are the different types of bitumen emulsions used for road construction? (10 )
(b) (i) Explain with a figure the bonding phenomenon of emulsion with aggregates. Distinguish between cutback and emulsion . Explain the basic properties of cutback and uses of it (10)
(ii) What are the salient features of performance graded binders? (5)
OR
2 (a) (i) Explain any two soil classification systems in use in the field of highway engineering. Give the limits of the soil grain size as per Indian Standard Classification system. (10)
(ii) The properties of subgrade soil are given below.
Passing 0.074 mm sieve = 55%
Liquid limit = 50%
Plastic limit = 41%
Classify the soil by revised PRA/ HRB system. (5)
(b) State the test principle of CBR test? Write the standard specifications followed for preparation of soil sample and for testing. (10)
3 (a) State and explain the desirable properties of bituminous mixes. (15)
(b) Write the salient features of the Marshall method for designing bituminous mix (10)
OR
4 (a) What are the factors affecting bituminous mix design? (10)
(b) What are the mechanical properties of bituminous mixes? How will you determine them? (10)
(c) Explain the fatigue characteristics of bituminous mixes. (5)
5 (a) Explain the Superpave method of mix design with a typical gradation chart (15)
b) Explain the steps followed for a rational design of a bituminous mix. (10)
OR
6 (a) The specific gravities and weight proportions for aggregate and bitumen are as under for the preparation of Marshall mix design. The volume and weight of one Marshall specimen was found to be 475 cc and 1100 gm. Assuming absorption of bitumen in aggregate is zero, find (15)
(b) Compare Indian method and superpave system of design of hot bituminous mix design. (10)
7 a) State the different methods for the design of cement concrete mix. What are the
features of the design method of cement concrete mix according to IRC:44-2008? (15)
b) Write a short note on cement concrete mix design for rural roads according to IRC: SP:62-2004 (10)
OR
8 a) Explain the requirements of cement concrete pavement mix. (10)
b) What are the materials used as joint fillers and sealers? Explain their uses and characteristics. (15)
Syllabus
Module 1 : Subgrade and bitumen
Subgrade : Subgrade soil – Soil composition and structure – Soil classification for engineering purposes – Origin, Classification, requirements, properties and tests on road aggregates
Bitumen : Origin, preparation, properties and tests, constitution of bituminous road binders, requirements – Bituminous Emulsions and Cutbacks; Preparation, characteristics, uses and tests
Module 2 : Bituminous Mixes
Bituminous Mixes : Mechanical properties: Resilient modulus, dynamic modulus and fatigue characteristics of bituminous mixes.
Module 3 : Bituminous mix design
Bituminous mix design : Weathering and Durability of Bituminous Materials and Mixes – Performance based Bitumen Specifications – Superpave mix design method
Module 4 : Cement Concrete for Pavement Construction
Cement Concrete for Pavement Construction : Requirements, and design of mix for CC pavement, joint filler and sealer materials.
References
1. RRL, DSIR, Bituminous Materials in Road Construction ‘, HMSO Publication.
2. RRL, DSIR, Soil Mechanics for Road Engineers’, HMSO Publication.
3. ISI and IRC Publications on relevant topics.
4. Freddy L. Roberts, Prithvi S. Kandhal, Ray Brown, Dah-Linn Lee, Thomas W. Kennedy, Hot Mix Asphalt Materials, Mixture Design and Construction, NAPA Education Foundation, Lanham, Maryland
5. Asphalt institute, The Asphalt Hand Book’
6. Kadiyali L.R., “Traffic Engineering & Transport Planning”, Khanna Publishers, 2003
7. Kadiyali L.R., “Principles & Practice of Highway Engineering”, Khanna Publishers,2003
8. Khanna S.K., Justo C.E.G., “Highway Engineering”, Nem Chand & Bros., Roorkee, 2001