in reply to Chris Remington
lemmy - Link to source

QuentinCallaghan

So if you add carrots into concrete with poop, it will become even more stronger?

dezeen.com/2018/08/09/carrots-concrete-stronger-lancaster-university-technology/

Concrete mixtures could be strengthened by adding nanoparticles extracted from carrots and other root vegetables, research currently underway at England's Lancaster University suggests.

Preliminary tests by the university's engineers found that "nano platelets" sourced from the fibres of these vegetables "significantly improved" the strength of concrete — and at a low cost.

in reply to Chris Remington
lemmy - Link to source

chicken

The beginning of the article mentions the environmental impact of cement manufacture and the importance of replacing it, but later mentions that the research found they can only replace 5-10% of a cement mixture with poop based biochar before it's strength becomes worse rather than better. Still some difference though I guess.