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#4623657 - 03/27/23 08:01 PM scientists reverse engeneered roman concrete and discovered it had self healing nanites  
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brasil

made you look, but close enough

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#4623661 - 03/27/23 09:51 PM Re: scientists reverse engeneered roman concrete and discovered it had self healing nanites [Re: Blade_RJ]  
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NoFlyBoy Online content
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Like Borg?

#4623758 - 03/28/23 04:48 PM Re: scientists reverse engeneered roman concrete and discovered it had self healing nanites [Re: NoFlyBoy]  
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brasil
close enough by the description, the problem with today concrete is water getting into it, the roman concreted from what was described basically regen with water getting into it.

#4623876 - 03/29/23 06:40 PM Re: scientists reverse engeneered roman concrete and discovered it had self healing nanites [Re: Blade_RJ]  
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Yeah, water is a problem because rebar. Romans didn't use rebar... Water/salt and iron/steel don't mix too well over long periods. Rebar rusts from exposure, rust expands, concrete cracks and crumbles.


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#4623878 - 03/29/23 06:55 PM Re: scientists reverse engeneered roman concrete and discovered it had self healing nanites [Re: Blade_RJ]  
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brasil
im no engineer and i know metal expands but i never understood why they just dont coat rebar with polymer, surely there is a poylmer that can expand with it.

#4623879 - 03/29/23 07:53 PM Re: scientists reverse engeneered roman concrete and discovered it had self healing nanites [Re: Blade_RJ]  
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ArgonV Offline
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They do on many (or use a coating) but it's not perfect. The ends for example, or nicks during install. wink

But also, cathodic protection which is commonly used for repairs will not work. Corrosion occurs underneath the coating and not conduct electricity.


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