Hall Ticket No Question Paper Code: BST205
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
M.Tech I Semester End Examinations (Regular) January, 2018
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. Describe the importance of the quality of water for concreting. Explain any one test to ensure
the quality of water used for concreting.
What are the various tests which are to be done on aggregates? Explain in detail any two tests
for aggregates.
2. Discuss in brief factors promoting alkali aggregate reaction? Explain the methods for control of
alkali aggregate reaction?
Write a brief note on mineral admixtures? Explain the effect of flyash on fresh concrete and
hardened concrete?
UNIT II
3. What is workability? Explain in detail any two tests for measurement of workability of concrete?

Explain the significance of setting time of fresh concrete? How to determine the setting time of
fresh concrete using penetrometer test?
4. Explain briefly the factors effecting creep of concrete? Discuss the effects of creep on concrete
structures?
Define durability of concrete. Explain in detail the impact of W/C ratio on durability of concrete.

UNIT III
5. What is ultra high strength concrete? Explain the techniques for producing ultra high strength
concrete?
Explain any four mechanisms affecting the performance of high performance concrete?
6. Explain in detail the fresh state properties of high-strength concrete?
Write a note on high-performance concrete. Explain the role of aggregates in high-performance
concrete.
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UNIT IV
7. Discuss in detail about workability aspect of structural light weight concrete.
What are the various tests conducted on polymer concrete? Discuss the precautions to be taken
while testing polymer concrete and how do you ensure the quality of the product?
8. Explain the behavior of fiber reinforced concrete in tension and compression.
What is self-compacting concrete? Write a note on material and mineral admixtures for Selfcompacting
concrete.
UNIT V
9. Define mean strength, variance, standard deviation and coefficient of variation. Write a note on
concept of mix design.
Describe the procedure in adopting the ACI method of concrete mix design.
10. Explain briefly the physical properties of materials required for mix design.
Design the concrete mix for M30 grade of concrete with the following data: (adopt IS method)
Characteristic strength required at site: 30 N/mm2
Maximum size of aggregate: 20 mm
Shape of CA: Angular
Exposure condition: Severe
Degree of workability: 0.85
Degree of quality control: Fair
Cement used: Grade 53
Sp. Gravity of cement: 3.15
Sp. Gr of CA: 2.67
Sp. Gr of FA: 2.6
Water absorption of CA: 0.5%
Entrapped air:2%
Free surface moisture of CA: Nil
Free surface moisture of FA:
Grading of CA conforming to Table 2 of IS 383
Grading of CA conforming to grading Zone 2.
Assume suitably any missing data.
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