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Tangentially related. This company using graphene laced concrete to reduce the amount of cement required. And eliminating steel. New product called "Concretene"

Tangentially related. This company using graphene laced concrete to reduce the amount of cement required. And eliminating steel. New product called "Concretene". [0]https://twitter.com/Paul_Denney/status/1397132479144812544 https://twitter.com/Paul_Denney/status/1397132479144812544 [1]https://www.punchline-gloucester.com/articles/aanews/gloucestershire-firm-versarien-first-with-graphene-in-concrete https://www.punchline-gloucester.com/articles/aanews/glouces...

Jerry2 5y ago
> graphene Graphene has its own set of problems. Namely, it can be toxic to humans. [1] And who knows what massive quantities of graphene in concrete will do to an environment 10-20 years after the building's construction. Even demolition with explosives will probably be problematic due to potentially massive clouds of nanoparticles it could create. [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5039077/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5039077/
- XorNot 5y ago
  Graphene isn't persistent though - it burns.
  - petertodd 5y ago
    So does plastic.
  - tomatotomato37 5y ago
    In the context of building materials that's not a good thing
- kortex 5y ago
  > Namely, it can be toxic to humans Uhhhh the rest of the stuff in Concrete isn't great for human health, either, or as my cousin likes to say, "it sure ain't vitamins." Quartz dust and silica sand are really bad for the lungs, likely carcinogens. Lime is caustic. Dust in general is bad to breathe. These are well-known hazards in demolition and mitigation techniques already exist.
  - Jerry2 5y ago
    I never said it was. I'm saying that adding carbon nonoparticles will only make matters much worse.
joshuaheard 5y ago
The contractor I used on a remodel spoke of carbon fiber reinforced concrete, which I googled, and it's called "carboconcrete". It is described as, "a highly stressable lightweight composite construction that combines special fine grain ultra high-strength concrete and carbon fibers."

Jerry2 5y ago

> graphene Graphene has its own set of problems. Namely, it can be toxic to humans. [1] And who knows what massive quantities of graphene in concrete will do to an environment 10-20 years after the building's construction. Even demolition with explosives will probably be problematic due to potentially massive clouds of nanoparticles it could create. [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5039077/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5039077/

XorNot 5y ago
Graphene isn't persistent though - it burns.
- petertodd 5y ago
  So does plastic.
- tomatotomato37 5y ago
  In the context of building materials that's not a good thing
kortex 5y ago
> Namely, it can be toxic to humans Uhhhh the rest of the stuff in Concrete isn't great for human health, either, or as my cousin likes to say, "it sure ain't vitamins." Quartz dust and silica sand are really bad for the lungs, likely carcinogens. Lime is caustic. Dust in general is bad to breathe. These are well-known hazards in demolition and mitigation techniques already exist.
- Jerry2 5y ago
  I never said it was. I'm saying that adding carbon nonoparticles will only make matters much worse.

joshuaheard 5y ago

The contractor I used on a remodel spoke of carbon fiber reinforced concrete, which I googled, and it's called "carboconcrete". It is described as, "a highly stressable lightweight composite construction that combines special fine grain ultra high-strength concrete and carbon fibers."