Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 1 (Q.No. 46)
Internal friction between the ingredients of concrete, is decreased by using
less water
fine aggregates
rich mix
more water and coarse aggregates
none of these.
Answer: Option
No answer description is available. Let's discuss.
16 comments Page 1 of 2.

Parveen kaushik said:   3 years ago
Fine aggregate should be the right answer.

Jay said:   4 years ago
Answer is right, author don't care about concrete strength. We all know more water makes concrete bleeding and more coarse aggregate causes honeycomb.

Khan. said:   4 years ago
Rich mix. Cement makes a paste which decreases the internal friction.

Abubakar said:   4 years ago
Well, I think about adding more water. Lubrication will be more and thus internal friction will be decreased.

Talib said:   6 years ago
In course aggregates surface area is less and hence less friction.

Sohail Soomro said:   6 years ago
I think the Answer is based on the idea that coarse aggregates provide less surface area of contact than the fine particles that provide a higher surface area of contact b/w particles that causes friction.

Laxmannaik said:   6 years ago
Option C is correct.

Rich mix will reduce friction.

Lok Bdr Rokaya said:   7 years ago
Answer is Right. It is based on surface area.

Ankit Jaiswal said:   7 years ago
How, if we increase water so there will be less work ability and slump value. This is not a way to reduce internal friction we must use some special ingredients.

Apcivilian said:   8 years ago
Answer is right.

If we use C. A and more water then surface area will decrease and less interlocking between particles!

The Same condition occur when we use more water content, due to lubrication internal friction will reduce!

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