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Civil Engineering - Concrete Technology

Exercise : Concrete Technology - Section 2
26.
Proper batching ensures
economy
durability
workability
strength
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Workability of concrete for a given water content is good if the aggregates, are
rounded aggregate
irregular aggregate
angular aggregate
flaky aggregates.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Pick up the correct statement from the following:
Bulking of sand is caused due to formation of a thin film of surface moisture
Fine sand bulks more than coarse sand
With 10% moisture content by weight, the bulking of sand is increased by 50%.
The volume of fully saturated sand, is equal to the volume of dry and loose sand
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
For compacting plain concrete road surface of thickness less than 20 cm, we use
internal vibrator
screed vibrator
form vibrator
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Pick up the correct statement from the following:
Construction joints are necessarily planned for their locations
Expansion joints are provided to accommodate thermal expansion
Construction joints are provided to control shrinkage cracks
Expansion joints need not be provided in foundation concrete
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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