CMD app is a free concrete mix design tool

The app can design reinforced concrete and plain concrete, you can even use it to design the concrete mix using multiple coarse aggregates.

You can save concrete composition and use it for further reference.

The app provides a simple and intuitive interface for the calculations of concrete quantities and design.

The app uses the IS 10262 2009 code for the concrete mix design and you can design ready mix concrete, the concrete calculator gives you the concrete composition which you can feed to the concrete mixer and make concrete blocks with it.

Steps in concrete mix designs that the app uses to design reinforced concrete or plain concrete are:

1. Select the environment conditions and choose whether you want to design the
Reinforced concrete or plain concrete.
2. Choose the cement type
3. Select the coarse aggregates
4. select the fine aggregates
5. Enter the admixtures, cement reducing or water reducing

Just hit the design button

You can even check the calculations which are especially useful for the civil engineering students.
The final strength of concrete is highly dependent on the curing of concrete so quality control is Important.