Civil Engineering - Concrete Technology - Discussion

I agree with you @Shahzaib Rao.

@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).

I think option A is incorrect.

Here only B and C options are right.

Option A will be the answer.

Option A should be the answer.

Bulking of sand also depend on fineness of Sand so option A is the correct answer.

Bulking also depends on size of fine aggregate.

I think C is not correct because bulking of sand is depend upon moisture content.

@Mano.

Not cement water, it is water cement ratio.