{{short description|Concrete material using fly ash in place of cement}} [[File:Cenocell samples.jpg|thumb|right|Cenocell samples]]
'''Cenocell''' is a [[Patent|patented]] [[concrete|concrete-like]] structural material that is manufactured without the addition of [[Portland cement]].<ref>{{ cite patent | country = US | number = 8057594 | status = patent| title = High strength pozzolan foam materials and methods of making the same | pubdate = 2011-11-15 | grate = | fdate = 2008-06-19 | date = | pridate = 2007 -06-19 | invent1 = Mulalo Doyoyo | invent2 = Paul Biju-Duval | assign1 = Georgia Tech Res Inst}}</ref> It was invented by [[Mulalo Doyoyo]] at the [[Georgia Institute of Technology]].<ref>{{Cite web |last=Toon |first=John |title=New Material Provides Strong and Lightweight Alternative to Concrete – without Cement |url=https://gtresearchnews.gatech.edu/newsrelease/coal-ash.htm |access-date=2023-02-21 |website=gtresearchnews.gatech.edu}}</ref><ref>{{Cite web |last=Yende |first=Sizwe Sama |title=Innovator loses out to Chinese because 'they are also black' |url=https://www.news24.com/citypress/business/innovator-loses-out-to-chinese-because-they-are-also-black-20200109 |access-date=2021-09-27 |website=Citypress |language=en-US}}</ref>
Cenocell is produced from a [[chemical reaction]] involving [[fly ash]] or [[bottom ash]] and various [[Organic compound|organic chemicals]]. The chemical reaction produces foaming, and results in grey slurry that resembles bread dough. The mixture is then [[Curing (chemistry)|cured]] in ovens at temperatures near 100°C. The result is a [[Mixture|homogenous mixture]] with a high strength and low weight.<ref>{{Cite web |title=Ashes to Cenocell |url=https://www.theengineer.co.uk/content/news/ashes-to-cenocell/ |access-date=2023-02-21 |website=The Engineer |date=27 November 2008 |language=en}}</ref>
==See also== * [[Sulfur concrete]]
==References== {{reflist}}
[[Category:Concrete]] [[Category:Building materials]] [[Category:Composite materials]] [[Category:Sustainable building]] [[Category:Heterogeneous chemical mixtures]] [[Category:South African inventions]]