Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 4 (Q.No. 15)
15.
Sand requiring a high water cement ratio, belongs to
Discussion:
31 comments Page 2 of 4.
Sudheer rawat said:
6 years ago
Answer must be D because finer sand has more surface area to coarse sand. And more surface area needs more water to lubricate. So the correct answer is D.
(1)
Ram said:
3 years ago
Zone 4 is required more w/c ratio. Beacuse zone 4 is more finer than zone 1. And fine sand more surface area and more surface are more required w/c.
(11)
Bapan Sardar said:
6 years ago
Answer. Should be zone 4. Because zone 4 is finer than other zone so, It's surface area is more. And More surface area required More w/c ratio.
Ramniwas said:
8 years ago
In this questions the correct answer in the D.
Surface area is more then w/c is the more and zone 4 not used for engineering works.
Surface area is more then w/c is the more and zone 4 not used for engineering works.
Niranjan said:
9 years ago
Zone 4 sand is more fine. And more fine sand has more surface area. It requires more water. So the answer is zone 4.
Vijay reddy m patil said:
3 years ago
Zone 4 requires high water cement ratio because in fine sand fineness increases, surface area also increases.
(3)
Vijay said:
7 years ago
I think Zone 4 because fine sand having large surface area so w/c ratio will more require to lubricant.
Hemraj Basnet said:
6 years ago
Zone iv have more void than zone I. so more void requires more cement and water so answer should be D.
Sumit said:
7 years ago
In w/c, Water is In numerator so sand requiring more water will have more w/c ratio.
Sumit said:
8 years ago
I think option a) is correct, because same volume coarse sand required more water.
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