STUPIDSID
1 (a)
Discuss briefly the ingredients of Portland cement along with their functions.
10 M
1 (b)
What are Bouge's compounds? Explain their role in setting and hardening process of cement.
10 M
2 (a)
Describe briefly fineness modulus of sand and how it is determined in the laboratory.
10 M
2 (b)
List various tests conducted on coarse aggregate and explain any two of them.
10 M
3 (a)
What are the ingredients of cement concrete? Explain their functions.
10 M
3 (b)
List and explain the factors that affect the workability of concrete.
10 M
4 (a)
Explain different types of curing of concrete.
10 M
4 (b)
What are chemical admixtures? List the admixtures used in concrete.
10 M
5 (a)
Explain the factors affecting the strength of hardened concrete.
10 M
5 (b)
Explain
(i) Aggregate cement bond strength
(ii) Flexural strength of concrete.
(i) Aggregate cement bond strength
(ii) Flexural strength of concrete.
10 M
6 (a)
Explain the factors affecting the modulus of elasticity of concrete and relation between modulus of elasticity and strength.
10 M
6 (b)
Explain creep and shrinkage of concrete.
10 M
7 (a)
List and explain the factors affecting durability of concrete.
10 M
7 (b)
Explain chloride attack on concrete and its effect on durability of concrete.
10 M
8
Design the concrete mix as per IS code pocedure for the following data:
a) Characteristic compressive strength at 28 day 25 MPa
b) Maximum size of aggregate: 20 mm
c) Degree of workability compaction factor 0.8 (CF)
d) Degree of quality control-Good
e) Types of exposure - Mild
f) Sp. Gravity of cement - 3.15
Sp. Gravity of C.A.-2.72
Sp. Gravity of F.A. - 2.60
Sand-Zone-III
Assume any other data suitably.
a) Characteristic compressive strength at 28 day 25 MPa
b) Maximum size of aggregate: 20 mm
c) Degree of workability compaction factor 0.8 (CF)
d) Degree of quality control-Good
e) Types of exposure - Mild
f) Sp. Gravity of cement - 3.15
Sp. Gravity of C.A.-2.72
Sp. Gravity of F.A. - 2.60
Sand-Zone-III
Assume any other data suitably.
20 M
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