Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Concrete - Water to Cement Ratios

Water vs. cement ratio when mixing concrete.

water cement mix

Water to cement ratio is the ratio of

weight of water to the weight of cement

used in a concrete mix and can be expressed as

r = wh20 / wc

  = 8.33 qH20 / wc                             (1)

where 

r = water to cement ratio

wh20 = weight of water (lbs)

w= weight of cement (lbs)

qH20 = volume of water (US gallon)

Example - Water to Cement Ratio

A batch of concrete has 45 gallons of water and 900 lbs of cement. The water to cement ratio can be calculated as

r = 8.33 (45 gallons) / (900 lbs)

  = 0.42 

Related Topics

  • Miscellaneous

    Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2010). Concrete - Water to Cement Ratios. [online] Available at: https://www.engineeringtoolbox.com/water-cement-ratio-d_1711.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































3.27.8

.