Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 5 (Q.No. 39)
39.
Pick up the incorrect statement from the following:
Workability of the concrete mix decreases with an increase in the moisture content
Concrete for which preliminary tests are conducted, is called controlled concrete
Bulking of sand depends upon the fineness of grains
Concrete mix 1 : 6 : 12, is used for mass concrete in piers.
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
24 comments Page 3 of 3.

Suresh said:   4 years ago
Here only B and C options are right.
(2)

Muhammad Ali Khetran said:   3 years ago
I think option A is incorrect.

Shahzaib Rao said:   3 years ago
@All.

Let me explain the option clearly.

Bulking depends upon Particle Size ---> Fineness &

Moisture Content (Option C is correct).

Test conducted in a laboratory on the trial mix of concrete produced in the laboratory for designing a concrete mix. It is done before actual concreting at the site to verify the strength of concrete and determine the adjustments required in the mix if needed. Thus, a concrete for which a mix is designed after carrying out the preliminary test is called controlled concrete. ((Option B is correct).

1:3:6 is used for abutments and piers. (Option D is incorrect).

Sheela KR said:   3 years ago
I agree with you @Shahzaib Rao.


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