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Thursday, November 17, 2016

CE6002 Concrete Technology Nov Dec 2016 Important Questions

Anna University Chennai Free Download of Important Questions of CE6002 Concrete Technology
B.E./ B.Tech. DEGREE EXAMINATION Nov Dec 2016
06th Semester
Civil Engineering
CE6002 Concrete Technology
(Regulation 2013)
Nov Dec 2016 Important Questions

Important 16 Marks Questions are listed for CE6002 Concrete Technology subject.

CE6002 CONCRETE TECHNOLOGY
QUESTION BANK / Important Questions
PART A
1. List the various types of high grade cements
2. List the chemical admixture and mineral admixtures used in the concrete.
3. Explain.Grading of sand.
4. What is Sulphate resisting cement?
5. What is "bulking of sand'?
6. Distinguish between segregation and bleeding?
7. Write any one test on sand.
8. What is setting time of cement?
9. What is segregation?
10. Mention the classification of aggregates based on size and shape.
11. What are admixtures?
12. What is slaking of lime?
13. What is setting time of cement?
14. What are called Accelerators?

PART B
1. List and explain the different tests on sand.
2. Explain the various tests to be conducted on coarse aggregate for making concrete
3. List and explain the different tests on coarse aggregate
4. Explain any four special cements with their chemical composition and applications.
5. Explain in detail any two laboratory tests to be conducted on cement as per I.S.
6. Explain any four important tests to be conducted on fine aggregates.
7. Explain the test on consistency of cement paste.
8. Write in detail about High Grade cements
9. Enumerate the importance of Bogue’s Compound in ordinary Portland cement.

Unit wise Important Questions:
Unit I
1. Describe the importance of the quality of water used for concreting.
2. How does increasing the quantity of water influence the properties of fresh and
hardened concrete?
3. Classify the various concrete chemical based on their use.
4. Distinguish between plasticizers and superplasticizers.
5. Explain in detail of any three tests for Fresh Concrete.
6. Explain in detail of any three tests for Hardened Concrete.
7. List the different types of workability aids.
8. What are the various factors which affect the workability of concrete?
9. Describe the hydration reaction of important Bogue compounds indicating the products of hydration.
10. What are the stages of transformation of fresh concrete to hardened concrete?
11. Describe the process of manufacture of cement by wet process.
12. Describe the process of manufacture of cement by dry process.
13. Explain in details the various specifications of concrete.
14. Explain in detail of any three tests for aggregates.
15. Explain in detail of any three tests for cement

Unit II
1. Explain how you would determine the various elastic moduli for concrete.
2. Explain the significance of quality control.
3. What are the reasons for the cracking of concrete and how does it affect durability?
4. What do you understand by carbonation of concrete? How is it tested?
5. What are the various types of chemical attacks encountered by concrete?
6. What precautions can be taken to ensure good quality concrete in coastal structures?
7. What are the physical deteriorating influences on concrete?
8. How does freeze-thaw damage occur?
9. Explain the factors which influence corrosion?
10. What is cathodic protection and when is it applied?
11. What physical tests could be done to confirm the efficiency of the epoxy joint?
12. Write short notes on the following: Acid attack
13. Write short notes on the following: Sulphate attack
14. Write short notes on the following: Alkali attack
15. Explain the methods of reinforced concrete repair techniques.
16. Explain the importance of weathering of concrete.

Unit III
1. Explain the Design Procedure for IS method of Concrete Mix Design.
2. Describe about the Sampling and Acceptance criteria
3. Write any one procedure for determining concrete mix design
4. Design the concrete mix for grade M20 with suitable conditions. Find the quantities of constituents of the mix for a bag of cement.
5. Explain the factors that influence the choice of mix design.
6. Explain in detail about the statistical quality control and acceptance criteria of concrete.
7. Describe the procedure in adopting ACI method of concrete mix design.
8. Describe the procedure in adopting IRC method of concrete mix design.
9. Design the concrete mix for grade M30 with suitable conditions. Find the quantities of constituents of the mix for a bag of cement.
10. Design the concrete mix for the following data: characteristic compressive strength = 20MPa, maximum size of aggregate = 20mm (angular), Degree of workability = 0.9 CF, Degree of quality control = good and type of exposure = severe. Water absorption by CA = 0.5% and moisture content in FA = 2.0%. Assume any suitable missing data.

Unit IV
1. What are the various methods of underwater construction? Explain.
2. What are the effects of cold weather concreting and hot weather concreting?
3. How can high-strength concrete be classified? Explain.
4. List the differences between polymer – impregnated concrete, polymer – modified concrete, and polymer concrete.
5. What are the various quality control tests done to ensure good performance of polymer concrete?
6. What are the basic properties of fibre – reinforced concrete which can be advantageously made use of in the design of structural elements?
7. In what way can the behavior of FRC can be used for seismic – resistant design?
8. Explain in detail the method of design of light weight concreting.
9. Describe the procedure of mass concrete.
10. Describe the procedure of Shotcrete.
11. Describe the procedure of Grouting.
12. Explain the properties of polymer Impregnated Concrete.
13. Describe the method of manufacturing of high density concrete.
14. Explain the design aspects of aerated concrete.
15. Explain the various methods of polymer concrete.

Unit V
1. Explain the role of formwork in the quality of concrete construction.
2. What type of equipment is used for placing concrete? In what way does this equipment avoid segregation during placing?
3. Describe the various aspects of pumping concrete.
4. What are the precautions to be taken while adopting the steam curing method?
5. Describe the method of slipform paving and state its advantages.
6. What are the advantages of using ready mixed concrete instead of site mixed concrete?
7. What are the properties of materials used for mass concrete?
8. Explain the batching process of concrete.
9. Explain in detail the control facilities of concrete jobs.
10. What are the methods of transportation of concrete? Explain any 5 of them.
11. Explain finishing method in concrete surfaces.
12. Describe the method of steam curing.
13. Explain the method of pumping of concrete.
14. Describe the compaction method of concrete.
15. Explain the various methods of batching in concrete.
16. Explain transportation and placing procedure in concrete

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