CE3403 Concrete Technology Important Questions

CE3403 Concrete Technology

Important Questions

Unit 1 Part B

1. Explain any four special cements with their chemical composition and applications.
2. Elaborate the various characteristics of aggregates influencing the properties of concrete.
3. Describe the tests conducted on cement to determine its quality and explain the IS specifications for cement.
4. Explain the quality requirements for water used in concrete and discuss the effect of impurities on concrete.
5. Illustrate the test procedure of determination of initial setting time and final setting time of cement as per IS 4031 guidelines. Also explain the significance of determination of same.
6. Describe the test procedure on determination of compressive strength of cement and soundness of cement as per Indian Standard guidelines. Also explain the significance of determination of same.

Unit 2 Part B

1. What is an admixture? Enumerate any two types of chemical admixtures.
2. Explain the different types of Mineral Admixture added in the concrete and their effects on properties of concrete.
3. Describe the different types of chemical admixtures and their uses in concrete.
4. Discuss the importance of waterproofers in concrete and their effect on the properties of concrete.
5. Summarize the purpose of accelerators and retarders in concrete
6. Discuss the process of production of silica fume and positive impact of addition of silica fume in concrete.
7. Discuss the process of production of Ground granulated blast furnace slag and positive impact of addition of Ground granulated blast furnace slag in concrete.

Unit 3 Part B

1. Explain the procedure to design a concrete mix based on ACI method for construction of residential building.
2. List the types of mixing of concrete and write brief note on physical properties of materials required for concrete mix design.
3. Explain the role of mix proportioning in producing quality concrete.
4. Compare the properties of nominal mix and design mix for M20 grade concrete.
5. Brief in detail on stepwise procedure to design concrete mixture as per IS 10262.
6. Write the various limiting values and data requirements for design of concrete mixture as per IS 10262.

Unit 4 Part B

1. Mention the methods to measure the workability of concrete in field. Explain any two.
2. Describe the tests to be conducted for the properties of hardened concrete.
3. Discuss the different properties of hardened concrete and explain the tests used to determine them.
4. Explain the significance of the stress-strain curve for concrete and the factors affecting it.
5. Write the test procedure to determine compressive strength and flexural strength of concrete as per IS 516 guidelines.
6. Explain the test procedure to determine slump and compacting factor of concrete as per IS guidelines.

Unit 5 Part B

1. Explain the properties of fibre reinforced concrete and its applications.
2. Explain the process of manufacturing of light weight concrete and its applications.
3. Discuss the types of fibers used in FRC and their effect on the properties of concrete.
4. Narrate the different types of special concretes and their uses in construction.
5. Write the important characteristics of self-compacting concrete and its applications.
6. Illustrate the different types of lightweight concrete and its applications.