Hall Ticket No Question Paper Code: BST205
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
M.Tech I Semester End Examinations (Supplementary) July, 2017
Regulation: IARE-R16
ADVANCED CONCRETE TECHNOLOGY
(Structural Engineering)
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. What is meant by hydration of cement? Explain the hydration reaction of important Bogue's
compounds indicating the products of hydration.
Explain how you determine the strength of aggregate using aggregate crushing and impact value
tests?
2. Explain in detail with sketches the structure of hydrated cement paste?
What are Super plasticizers? Discuss the classification of Super plasticizers? What are the effects
of Super plasticizers on Fresh Concrete?
UNIT II
3. What are the causes of Bleeding and Segregation? Discuss the method of test for Bleeding of
concrete?
List the techniques for measuring Pulse velocity through concrete? Explain briefly the factors
affecting the measurement of Pulse Velocity?
4. Explain briefly the various factors which affect the workability of concrete?
Discuss maturity of concrete? How is it measured? What are its practical uses in the concrete
industry?
UNIT III
5. Explain how High-Strength concrete can be classified? What are the various techniques used to
achieve high strength?
What are the factors which control the performance of High Performance concrete?
6. What are the advantages and applications of using High-Strength concrete?
What are the requirements for High-performance characteristics? Explain briefly the methods
for achieving High-performance?
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UNIT IV
7. Explain briefly the requirements for self-compacting concrete. Explain production and placing
of self-compacting concrete.
What are the different types of fibers used in concrete? What are the factors effecting properties
of fiber reinforced concrete?
8. Explain the properties and applications of polymer impregnated concrete.
Explain in detail the method of design of light weight aggregate concrete mix.
UNIT V
9. List the various methods used for proportioning concrete mixes. Write any one procedure for
determining concrete mix design.
Discuss the tests necessary to check the adoptability of a particular mix proportion for field use.

10. What are the variables to be considered in proportioning of concrete mixes? Write a note on
statistical quality control of concrete.
Design the concrete mix for M45 grade of concrete with the following data:
Type of cement: OPC 43 grade
Maximum size of aggregate: 20 mm
Exposure condition: Severe
Workability: 125 mm slump
Minimum cement content: 320 kg/m3
Maximum water cement ratio: 0.45
Method of placing concrete: pumping
Degree of supervision: good
Type of aggregate: Crushed angular aggregate
Super plasticizer will be used
Sp. Gr of CA: 2.80
Sp. Gr of FA: 2.70
Water absorption of CA: 0.5%
Water absorption of FA:
Free surface moisture of CA: Nil
Free surface moisture of FA: Nil
Grading of CA conforming to Table 2 of IS 383
Grading of CA conforming to grading Zone 2.