The concrete mix design section in the Concrete Hub mobile app is a handy tool that follows the ACI 211.1-91 guidelines for mixture proportioning of normal, heavyweight, and mass concrete materials. This mobile app is available to download for free from here:
Android: https://play.google.com/store/apps/details?id=com.giatec.concretehub
iOS: https://itunes.apple.com/us/app/concrete-hub/id1077886658?ls=1&mt=8
For more information, please contact:
Aali R. Alizadeh, PhD, P.Eng., Adjunct Professor-University of Ottawa, Co-Founder and CEO at Giatec Scientific Inc.
Linked In: https://www.linkedin.com/in/aali-r-alizadeh-00348438?authType=name&authToken=YyEK
Twitter: https://mobile.twitter.com/_Aali