Concrete

• pros: cheap
• cons: crude, just structural, just compression
  In erection and removal: not reversible without destruction (exception loose interlocking concrete tiles), dusty, loud, time and energy intensive, big CO₂ emittant

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• Common minerals in "concretes" like CaCO₃ maybe interesting for atomically precise mechanosynthesis

Exotic forms of "concrete"

• Lime plaster (*)
• Gypsum plaster
• Sorel-cement (Magnesium based - very different)
• Geopolymers
• ...

Related

• Calcium

External links

• https://en.wikipedia.org/wiki/Calcium_oxide
• https://en.wikipedia.org/wiki/Cement
• https://en.wikipedia.org/wiki/Portland_cement
• https://en.wikipedia.org/wiki/Plaster#Gypsum_plaster
• https://en.wikipedia.org/wiki/Sorel_cement
• https://en.wikipedia.org/wiki/Geopolymer
• (de) https://de.wikipedia.org/wiki/Silikattechnologie
• (de) https://de.wikipedia.org/wiki/Technischer_Kalkkreislauf