WILL ANY COLLEAGUE TELL ME THAT WATER RATIO IS FIXED FOR ANY
TYPE OF CONCRETE? OR HOW CAN WE DETERMINE THE RATIO OF WATER
IN A CONCRETE MIX.

Answer Posted / santosh singh

According to British Standard Specifications


water requirement of concrete = 28% by weight of cement + 4% by total weight of aggregate

M25 M20 M15
proportion 1:1:2 1:11/2:3 1:2:4

water cement ratio 0.43 0.51 0.58
(by weight)

quantity of water is calculated as

for M20
wt of water/wt of cement(50kg) = 0.51

Wt of water per bag of cement = 0.51 x 50 = 25.5 liters

similarly for M25

wt of water per bag of cement = 0.43 x 50 = 21.5 liters


wt of water per bag of cement = 0.58 x 50 = 29 litres

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how to take the quantity of block work and plastering  1block price:3saudi riyal cement:1bag:15 saudi riyal sand:3bag:20 saudi riyal 1mason:9hour per hour 40 saudi riyal 1labour:9hour per hour 40 saudi riyal can anybdy calculate

2044


What is the Null Point of chimney in Power Plant

3261


please what is the number of bars required for a column of 6mx6m and 450mmx300mm,its a commercial building (Church)

1306


how to calculate cost of raw materials of a building for 1000 sqft & also consolidated cost of labour in a 1000 sqft building

2405


how to calculate the material from ratio of work PCC, RRM,POINTING, RCC

1884






which has high compressive strength between hollow block and brick masonry?

1856


What is meaning of FREE STANDING STAIRCASE ?

2491


States some of the commonly used commands in cad software’s?

764


hoe much fine & sourse agregate required for concrete mix of 1: 1.5:3 by volume in Cu.Ft

1405


in staad pro. modelling for a parallel scissors chord truss, when i assigned roller support i.e fixwd but with all Fx, FZ, Mx, My and Mz release except Fy... the analysis results " in stability at a joint, with direction Mx or My..what could be the reason...anyone please explaing

3343


how to calculate 1:5:8 ratio concrete cement, sand, metal and water please give me brief calculation

1219


where will be the reinforcement of slab placed when there is an inverted beam and the bottom of the beam and slab are at same level ?

766


the magnitude of the buoyant force can be determine by newtons law of viscosity archimidies principal principles of momemnt none

1687


quantity of material needed for rubble stone masonry for 1:4 and 1:6

1226


cause of cylinder test failure

2832