Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 1 (Q.No. 5)
5.
Pick up the correct statement from the following:
For thin structures subjected to wetting and drying, the water cement ratio should be 0.45
For mass concrete structures subjected to wetting and drying, the water ratio should be 0.55
For thin structures which remain continuously under water, the water-cement ratio by weight should be 0.55
For massive concrete structures which remain continuously under water, the water cement ratio by weight should be 0.65
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
21 comments Page 2 of 3.

Swarup said:   10 years ago
In case of under water mass concrete structure, w/c ratio should be high as the concrete needs high degree of work ability. Similarly for thin concrete structures also.
(1)

Shiva said:   1 decade ago
In water, the thin like structure require 0.55 wc ratio. Why it is increasing in water every structure will given high wc ratio from a supposed one.

Mukul said:   2 years ago
How is it possible? For underwater?

For thin structures which remain continuously underwater, the water-cement ratio by weight should be 0.55.

Pradeep said:   1 decade ago
Why massive concrete structures which remain continuously under water w/c ratio is high as compare to drying & wetting concrete structure?

Madhu c n said:   1 decade ago
AS W/C Ratio increases strength decreases right then how can we use those high ratios at important places ?

Navjot patial said:   1 decade ago
On high workability it easy to work on those concrete. So we use more water cement like 0.55 or 0.65.

Anjanalakshmi said:   5 days ago
.55 ratio means w/c= .55
Where the weight of water = .55 × weight of cement
1kg = 1L.

Harsha said:   1 decade ago
Can any one keep reference for above mentioned W/C ratios?

Akhil said:   8 years ago
.65 wc ratio its bit high, and asking for segregation.

Husen said:   8 years ago
On what dose the foundation of a construction rest on?


Post your comments here:

Your comments will be displayed after verification.