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Civil Engineering - Concrete Technology

Exercise : Concrete Technology - Section 2
46.
Segregation is responsible for
honey-combed concrete
porous layers in concrete
surface scaling in concrete
sand streaks in concrete
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Addition of pozzolana to cement
decreases workability
increases strength
increases heat of hydration
decreases curing time
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
The datum temperature for maturity by Plowman, is
23°C
0°
- 5.6°C
- 11.7°C
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Pick up the incorrect statement from the following:
The degree of grinding of cement, is called fineness
The process of changing cement paste into hard mass, is known as setting of cement
The phenomenon by virtue of which cement does not allow transmission of sound, is known as soundness of cement
The heat generated during chemical reaction of cement with water, is known as heat of hydration
None of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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