Water Cement Ratio Solution

STEP 0: Pre-Calculation Summary
Formula Used
Water Cement Ratio = Weight of Mixing Water/Weight of Cementitious Materials
CW = wm/wc
This formula uses 3 Variables
Variables Used
Water Cement Ratio - Water Cement Ratio is the ratio of the weight of cement to the weight of water.
Weight of Mixing Water - (Measured in Kilogram) - Weight of Mixing Water is the weight of the water mixed in the batch.
Weight of Cementitious Materials - (Measured in Kilogram) - Weight of Cementitious Materials is the weight of cementitious materials mixed in the batch.
STEP 1: Convert Input(s) to Base Unit
Weight of Mixing Water: 9 Kilogram --> 9 Kilogram No Conversion Required
Weight of Cementitious Materials: 20 Kilogram --> 20 Kilogram No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
CW = wm/wc --> 9/20
Evaluating ... ...
CW = 0.45
STEP 3: Convert Result to Output's Unit
0.45 --> No Conversion Required
FINAL ANSWER
0.45 <-- Water Cement Ratio
(Calculation completed in 00.004 seconds)

Credits

Created by Mridul Sharma
Indian Institute of Information Technology (IIIT), Bhopal
Mridul Sharma has created this Calculator and 200+ more calculators!
Verified by Chandana P Dev
NSS College of Engineering (NSSCE), Palakkad
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10+ Job Mix Concrete Volume Calculators

Gel-Space Ratio for Complete Hydration
Go Gel Space Ratio = (0.657*Mass Of Cement)/((0.319*Mass Of Cement)+Volume of Mixing Water)
Volume of Products of Hydration Per Unit of Dry Cement
Go Volume of Solid Products of Hydration = (Volume of Hydrated Cement/Absolute Volume of Dry Cement actually Hydrated)
Target Mean Strength for Mix Design
Go Target Average Compressive Strength = Characteristic Compressive Strength+(1.65*Standard Deviation of Distribution)
Specific Gravity of Material given its Absolute Volume
Go Specific Gravity of Material = Weight of Material/(Absolute Volume*Water Density)
Absolute Volume of Component
Go Absolute Volume = Weight of Material/(Specific Gravity of Material*Water Density)
Weight of Material given its Absolute Volume
Go Weight of Material = Absolute Volume*Specific Gravity of Material*Water Density
Volume of Empty Capillary Pores
Go Volume of Empty Capillary Pores = (Volume of Capillary Pores-Volume of Water Filled Capillary Pores)
Weight of Cementitious Materials in Concrete Batch
Go Weight of Cementitious Materials = Weight of Mixing Water/Water Cement Ratio
Weight of Mixing Water in Batch
Go Weight of Mixing Water = Water Cement Ratio*Weight of Cementitious Materials
Water Cement Ratio
Go Water Cement Ratio = Weight of Mixing Water/Weight of Cementitious Materials

Water Cement Ratio Formula

Water Cement Ratio = Weight of Mixing Water/Weight of Cementitious Materials
CW = wm/wc

List the typical relationship between w/c ratio by weight and compressive strength of concrete.

The ACI code lists the typical relationship between the w/c ratio by weight and 28 days compressive streng.th of concrete as follows.
1. Non-air-entrained concrete (0.41 - 41 MPa) & (0.82 - 14 MPa)
2. Air-entrained concrete (0.40 - 34 MPa) & (0.74 - 14 MPa)
Further w/c ratio by weight varies from
0.67-0.38 for non-air-entrained concrete &
0.54-0.35 for air-entrained concrete when strength data are not available.

What is Water Cement Ratio & Cementitious Materials?

Water-Cement Ratio is defined as the ratio of the weight of water mixed in the batch to the weight of cementitious materials in the batch.
Cementitious materials indicate one of the principal ingredients that make up the concrete mixture. There are two types of cementitious materials: hydraulic cement and supplementary cementitious materials (SCMs). Hydraulic cement set and harden by reacting chemically with water.

How to Calculate Water Cement Ratio?

Water Cement Ratio calculator uses Water Cement Ratio = Weight of Mixing Water/Weight of Cementitious Materials to calculate the Water Cement Ratio, The Water Cement Ratio formula is defined as it is helpful in determining the ratio of the weight of water to the weight of cement that should be mixed in a batch of concrete to gain a specified strength. Water Cement Ratio is denoted by CW symbol.

How to calculate Water Cement Ratio using this online calculator? To use this online calculator for Water Cement Ratio, enter Weight of Mixing Water (wm) & Weight of Cementitious Materials (wc) and hit the calculate button. Here is how the Water Cement Ratio calculation can be explained with given input values -> 0.45 = 9/20.

FAQ

What is Water Cement Ratio?
The Water Cement Ratio formula is defined as it is helpful in determining the ratio of the weight of water to the weight of cement that should be mixed in a batch of concrete to gain a specified strength and is represented as CW = wm/wc or Water Cement Ratio = Weight of Mixing Water/Weight of Cementitious Materials. Weight of Mixing Water is the weight of the water mixed in the batch & Weight of Cementitious Materials is the weight of cementitious materials mixed in the batch.
How to calculate Water Cement Ratio?
The Water Cement Ratio formula is defined as it is helpful in determining the ratio of the weight of water to the weight of cement that should be mixed in a batch of concrete to gain a specified strength is calculated using Water Cement Ratio = Weight of Mixing Water/Weight of Cementitious Materials. To calculate Water Cement Ratio, you need Weight of Mixing Water (wm) & Weight of Cementitious Materials (wc). With our tool, you need to enter the respective value for Weight of Mixing Water & Weight of Cementitious Materials and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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