[HN Gopher] Development of a Low-Density Waste-Based Geopolymer ...
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       Development of a Low-Density Waste-Based Geopolymer Construction
       Material
        
       Author : PaulHoule
       Score  : 12 points
       Date   : 2024-03-10 17:13 UTC (5 hours ago)
        
 (HTM) web link (www.mdpi.com)
 (TXT) w3m dump (www.mdpi.com)
        
       | xnx wrote:
       | Reminds me of Aircrete which can also be made with fly ash:
       | https://domegaia.com/blogs/aircrete-dome-mastery/aircrete-10...
        
         | ajb wrote:
         | Yes. I only scanned the paper, but it's not obvious to me what
         | value polystyrene is adding compared with air, which is free.
        
           | unwind wrote:
           | It's a waste stream, so if it can be long-term "locked" into
           | construction and not need further processing, that is
           | helpful. That's my thinking at least, it's a way to upcycle
           | waste.
        
             | xnx wrote:
             | Thanks for pointing that out. I had to read parts of the
             | paper more closely to recognize that in addition to waste
             | fly ash they use waste polystyrene. I had thought they were
             | using waste fly ash with virgin polystyrene.
        
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