Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 2 (Q.No. 34)
34.
Pick up the incorrect statement from the following:
A rich mix of concrete possesses higher strength than that a lean mix of desired workability with excessive equantity of water
The strength of concrete decreases as the water cement ratio increases
If the water cement ratio is less than 0.45, the concrete is not workable and causes honey-combed structure
Good compaction by mechanical vibrtions, increases the strength of concrete
None of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
18 comments Page 1 of 2.

Ritesh Kumar said:   4 years ago
I think Option C should be applied because"if the water-cement ratio is less than 0.40 then it is not workable and causes honeycombed structure".
(2)

Himanshu sharma said:   5 years ago
For the same strength, the water content and cement will be less in rich mixes so chances of excessive water are more in lean concrete. Hence A is incorrect.

Sejal singh said:   5 years ago
Agree, answer should be E.

Pankaj gusain said:   5 years ago
Yes, option E is correct answer because the lean mix does not contain more strength as compared to rich mix.
(1)

Tikam said:   5 years ago
Rich mix concrete>15%cement contain.
Normal mix 10%<cement contain<15%.
Lean mix<10%cement contains.

Ramvir said:   7 years ago
You are right @Dnyaneshwar.

Option E is correct.
(1)

Bee said:   7 years ago
How can option A incorrect? Please explain in detail.

B.R Bhatta said:   7 years ago
According to me, Option E is Correct.

NITYA said:   7 years ago
Option E is correct. I also agree.

Shub said:   8 years ago
A rich mixture contains a high proportion of cement. A lean mixture is a mixture of concrete or mortar with a relatively low cement content. A harsh mixture of concrete is one without mortar or aggregate fines, resulting in an undesirable consistency and workability.


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