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Saturday, December 3, 2016

CN7001 ADVANCED CONCRETE TECHNOLOGY May June 2016 Question Paper

Anna University Chennai
Question Paper Code: 86285
Construction Engineering and Management
(Common to M.E.Structural Engineering)
(Regulation 2013)
Time:Three hours
Maximum: 100 marks

Answer ALL questions.
Part A-(10 x 2=20 marks)

1. What is standard consistency?
2. Define fineness modulus.
3. State the effect of creep in concrete.
4. List out factors affecting durability of concrete.
5. Furnish the data required for ACI method of mix design.
6. What is concrete acceptance criteria as per IS code.
7. Where light weight concrete is preferred than the conventional one.
8. What is the function of plasticizers in concrete?
9. Define vacuum dewatering.
10. State the principle of curing.

PART – B (5 × 13 = 65 Marks)
11. (a) What is meant by hydration of cement? Explain the physical test earned out on cement to test its normal consistency and compressive strength.
(b) How aggregates can be graded? Explain the determination of fitness modulus of aggregates? What are the effects of coarser fraction of aggregates?

12. (a) Explain the properties of fresh concrete and relevant tests to be performed to determine them.
(b) How creep, shrinkage and durability of concrete is determined?

13. (a) Design a concrete mix for M30 grade concrete by I.S Method using the following data.
Characteristic Compressive Strength: 30 kPa.
Maximum size of aggregates: 20 mm angular
Degree of quality of concrete: Good
Type of Exposure: Severe.
Compaction factor: 0.87
Specific gravity of cement: 3.15
Specific gravity of coarse aggregate: 2.65
Specific gravity of fine aggregate: 2.68
Water absorption of coarse aggregate: 1.2%
Water absorption of fine aggregate: 1.5%
Grading of coarse aggregate: confirms to table 2 of IS:383-1970
Grading of fine aggregate: confirms to zone 111 of IS:383-1970
(b) Discuss in detail about the statistical quality control of concrete.

14. (a) What is meant by High Performance concrete? Explain the properties, 3 uses and manufacture of high performance concrete.
(b) Discuss in detail about geo-polymer concrete and self-compacting concrete.

15. (a) Explain different methods of transportation, placing and curing of concrete.
(b) Write a detailed note on
(i) Under water concreting (7)
(ii)Extreme weather concreting. (6)

PART – C (1×15=15 Marks)
16. (a) Analyse parameter optimization for mix design using DOE method. Assume your own data for illustration.
(b) Analyse the water chemical admixtures and mineral admixture as concrete making materials.

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