what is the proportion of m20 grde concrete? also how much
water is required for this proportions? As there were any
formula for water-quantity?
Answers were Sorted based on User's Feedback
Answer / upendra
Proportion for M20 grade concrete is 1:1.5:3 , water to be
added is as per water cement ratio 0.54 i.e
0.54 X 50kg of cement wt = 27lit.
Is This Answer Correct ? | 25 Yes | 7 No |
Answer / suraj
water required in concrete is 28%of cement and 5% of total aggregate.
Is This Answer Correct ? | 9 Yes | 3 No |
Answer / pinku gautam
A water/cement ratio of only 0.38 is required for complete
hydration of cement. (Although this is the theoretical limit, water cement ratio lower than
0.38 will also increase the strength, since all the cement that is added, does not hydrate)
Water added for workability over and above this water/cement ratio of 0.38, evaporates
leaving cavities in the concrete. These cavities are in the form of thin capillaries. They
reduce the strength and durability of concrete. Hence, it is very important to control the
water/cement ratio on site. Every extra lit of water will approx. reduce the strength of
concrete by 2 to 3 N/mm2 and increase the workability by 25 mm
Is This Answer Correct ? | 2 Yes | 1 No |
how do you calculate the length of "L" of main & distribution bar for reinforcing of raft footing.
5 Answers Dee Vee Projects, L&T,
Is there the dry coefficient of cement is constant?
Grades of concrete
28 Answers Mittal Steel, UNOPS,
what is periode of deshuttering of slab our span length 21m,and width 2.5m grade of concrete M-35
what is the maximum number of course that can be laid according to IS code and the max height.
What is the diameter of the 3"inch nails?
Explain different types of rcc pipes.
what is the difference between mortar and concrete???
what is the minimum grade of concrete used in rcc(reinforced cement concrete)
8 Answers Lok Sewa Aayog, Prestige,
detailed calculation of the amount of cement used?
what is right & short method of measurement of slab&beam
What is meant by engineering drawing?