Ideas and projects that don’t fit in the other categories
- Fertilised concrete
Idea: fertiliser embedded in concrete, which slowly leaches out. Use as fertiliser pellets in hydroponics?
- Foaming MgO cement
Interesting foam! Made by company that calls it AirKrete Greensulation. Contains (according to this video):
Foam side
- Calcium chloride
- Foaming agent
- Water
Cement side
- Magnesium oxide
- Talc (magnesium silicate)
- Water
- Proprietary chemical
Downsides
- Crumbles easily
- No strength