I’ve been designing concrete mixes for almost 20 years and I’ve always used spreadsheets. Seeing those frees for a “free product” Free Concrete Mix Design Software | Concrete Quality make me think that we do actually need one which is free-as-in-freedom
The Concrete Quality software is free” Free to use, pay only for additional services, no minimum subscription time. Starting at 35 € (~39 USD) per month.
