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Launch HN: Heimdal (YC S21) – Carbon neutral cement

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81–90 of 227 posts

Re: Launch HN: Heimdal (YC S21) – Carbon neutral cement

#81

Good luck! Sustainable cement and concrete production is needed now more than ever. Many people do not realize that the [1] cement industry is one of the main producers of carbon dioxide greenhouse gas emissions. [1] https://en.m.wikipedia.org/wiki/Environmental_impact_of_conc...

Thanks! Yes it's pretty wild - fully 8% of global emissions!

Re: Launch HN: Heimdal (YC S21) – Carbon neutral cement

#82

Looks great, good luck! Question about the seawater aspect, are ecological impacts similar to conventional desalination processes?

It's actually better, we consumer concetrated brine in our process, so we don't create a high local salinity that disturbs marine life. In fact we're a pretty good fit for a bolt-on to existing RO desalination plants. Let me know if anyone's connected to someone at a plant like that!

Re: Launch HN: Heimdal (YC S21) – Carbon neutral cement

#83
post #77

Sounds promising! I have noticed companies with environmental impact have disproportionately more success in crowd-funding. Many non-institutional investors (like myself) put their money in ideas that are good for the world - almost like charity. Perhaps you will consider raising funds and spreading the word using a crowd-funding site such as https://www.startengine.com/explore

I love the idea of crowdfunding! Definitely something we'll look into down the line.

Re: Launch HN: Heimdal (YC S21) – Carbon neutral cement

#84

Curious about the name, my immediate thought (and interest making me click in) was that it sounds Norwegian. Any connection? I really like the idea. One thing I'm curious about is what's in it for the contractors (edit: cement producers) buying from you instead of others? I get the environmental impact, but my guess is they only care if touches their bottom line. Will it be cheaper, either in raw price or because of…

It is norwegian! My SO lived in Heimdal, Trondheim.

Re: Launch HN: Heimdal (YC S21) – Carbon neutral cement

#85
> Until now concrete producers have favoured capturing emissions at the point where they’re released as their “2050-solution”

Just curious: at what point does concrete release C02? In a particular part of the manufacturing process? Or throughout the process?

Re: Launch HN: Heimdal (YC S21) – Carbon neutral cement

#86
post #85

> Until now concrete producers have favoured capturing emissions at the point where they’re released as their “2050-solution” Just curious: at what point does concrete release C02? In a particular part of the manufacturing process? Or throughout the process?

https://en.m.wikipedia.org/wiki/Cement_kiln

Re: Launch HN: Heimdal (YC S21) – Carbon neutral cement

#88
When I saw this the article title being about cement and carbon, I got excited that someone invented a way for cement to better absorb heat and solar radiation.

I have to imagine global temperatures are affected by the reflection of cement quite a bit. Blacktop certainly returns heat into the air, as do roofs, but I would guess so does most cement -- why does no one talk about it? Soil aborbs, plants absorb, solid cement reflects, no?

Re: Launch HN: Heimdal (YC S21) – Carbon neutral cement

#89
If this is as good as promised, you should apply for Elon Musk's XPRIZE [1]. Take the $50 million to scale this up faster. Plus, if you win you probably get to talk to Elon. I doubt there is anyone that has better tipps on how to scale and iterate a business than him.

[1]: https://www.xprize.org/prizes/elonmusk

Re: Launch HN: Heimdal (YC S21) – Carbon neutral cement

#90
post #85

> Until now concrete producers have favoured capturing emissions at the point where they’re released as their “2050-solution” Just curious: at what point does concrete release C02? In a particular part of the manufacturing process? Or throughout the process?

https://en.m.wikipedia.org/wiki/Cement_kiln

Thanks that answered my question.
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