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Civil Engineering - Concrete Technology

Exercise : Concrete Technology - Section 5
21.
1.S.I. has specified the full strength of concrete after
7 days
14 days
21 days
28 days
35 days
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
For given workability the grading requiring the least amount of water is one that gives
greatest surface area for the given cement and aggregates
least surface area for the given cement and aggregates
least weight for the given cement and aggregates
greatest weight for the given cement and aggregates
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The minimum percentage of chemical ingredient of cement is that of
magnesium oxide
iron oxide
alumina
lime
silica.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
The specifications of a cement bag for storage, are
weight 50 kg
height 18 cm
plan area 3000 sq. cm
volume 35 litres
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
The bulk density of aggregates, depends upon
shape
grading
compaction
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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