Civil Engineering - Building Materials - Discussion
Discussion Forum : Building Materials - Section 2 (Q.No. 27)
27.
Minimum required water cement ratio for a workable concrete, is
Discussion:
27 comments Page 1 of 3.
Ravi mehta said:
1 decade ago
Studies by multiple authors, including Powers, Brownyard and Copeland, indicated that paste had to have a w/c of about 0.40 in order to fill the spaces between cement particles. If we don't have the minimum required water content, our concrete mix will be too stiff to place.
J J Radadiya said:
6 years ago
In concrete, for chemical reaction 0.23% water content is require. and 0.15% water content require for evaportion loss. 0.23 + 0.15 = 0.38.
But on-site for convenience, we take 0.38 as 0.40
But on-site for convenience, we take 0.38 as 0.40
(6)
Manoranjan Singh said:
2 years ago
In concrete, for chemical reaction 0.23% water content is required & 0.15% water content required for evaporation loss.
Therefore 0.23 + 0.15 = 0.38 => 0.40.
Therefore 0.23 + 0.15 = 0.38 => 0.40.
(3)
Amrita said:
7 years ago
The standard water-cement ratio.
Water cement ratios of 0.45 to 0.60 are more typically used.
Water cement ratios of 0.45 to 0.60 are more typically used.
Siddhant chauhan said:
9 years ago
It should be 0.45 for thin structure and 0.55 for heavy structure lesser is better.
Srinivas said:
10 years ago
Water cement ratio is nothing but weight of water/weight of cement.
Diwesh said:
7 years ago
Max w/c ratio for durable concrete 0.8 how?
Although max is 0.6.
Although max is 0.6.
Varinder said:
8 years ago
Water cement ratios of 0.45 to 0.60 are more typically used.
Tushar pATel said:
9 years ago
As a reference of M.S. Setty book, the answer is 0.38.
Aarti said:
9 years ago
Yeah, 0.38 tends to 0.4 so, the correct answer is 0.4.
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