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Civil Engineering - Concrete Technology

Exercise : Concrete Technology - Section 4
6.
Pozzolanic properties exist in
shales
fly ash
pumicite
diatomaceous clay
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
An aggregate which passes through 25 mm I.S. sieve and is retained on 20 mm sieve, is said to be flaky if its least dimension is less than
22.5 mm
18.5 mm
16.5 mm
15.5 mm
13.5 mm.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Expansion joints are provided if the length of concrete structures exceeds
10 m
15 m
15 m
35 m
45 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Workability improved by adding
fly ash
hydrated lime
calcium chloride
bentonite
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
If the slump of a concrete mix is 60 mm, its workability is
very low
low
medium
high
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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