Concrete productivity adds a little research tree to increase productivity in the crafting of concrete. Now you will be able to properly cover the entire surface of all the planets in sterile grey majesty.

Mods recommended along this:
Remove Prod. Cap: https://mods.factorio.com/mod/remove-productivity-cap
Landfill Productivity: https://mods.factorio.com/mod/landfill-productivity
faster pavements: https://mods.factorio.com/mod/FasterPavements
sane concrete: https://mods.factorio.com/mod/Sane-Concrete-2