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How Fly Ash Concrete Works


Author's Note

I've written quite a bit about green buildings and construction over the years, but I'll admit that when I saw the words "fly ash" on the screen when I received this assignment, I drew a blank. I'm interested to see what will happen with this stuff. For now, concrete seems like a perfectly good use for fly ash, but in a best case scenario, we'll continue to wean ourselves off coal to the point where fly ash disposal isn't as much of an issue.

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Sources

  • Dewan, Shaila. "Coal Ash Spill Revives Issue of Its Hazards." The New York Times. Dec 24, 2008. (April 16, 2012) http://www.nytimes.com/2008/12/25/us/25sludge.html?_r=2&adxnnl=1&pagewanted=all&adxnnlx=1334958981-VtR/zjO22tyxyKDYyqjSWA
  • Duxson, Peter, et al. "The role of inorganic polymer technology in the development of 'green concrete.'" Cement and Concrete Research. Sept. 20, 2007. (April 20, 2012) http://www.sciencedirect.com/science/article/pii/S0008884607002001
  • Ideker, Jason. "New fly ash regulations threaten sustainable concrete." Aug. 2, 2010 (April 17, 2012) http://www.sustainablebusinessoregon.com/columns/2010/08/new_fly_ash_regulations_threaten_sustainable_concrete.html
  • Liu, et al. "Environmental Properties of Fly Ash Bricks." 2009 World of Coal Ash (WOCA) Conference. May 4, 2009. (April 6, 2012)
  • Living on Earth. "Coal Byproduct, Hazardous Waste?" Dec. 9, 2011. (April 20, 2012) http://www.loe.org/shows/segments.html?programID=11-P13-00049&segmentID=6
  • Merchant, Brian. "600 Coal Ash Dump Sites Found in 35 States: Is There One Near You?" TreeHugger.com. Sept 10, 2009. (April 18, 2012) http://www.treehugger.com/corporate-responsibility/600-coal-ash-dump-sites-found-in-35-states-is-there-one-near-you.html
  • Portland Cement Association. "How Portland Cement is Made." (April 20, 2012) http://www.cement.org/basics/howmade.asp
  • Post, Nadine M. "Fly Ash Looms As The 'New Asbestos." ENR.com. April 15, 2010. (April 16, 2012) http://greensource.construction.com/news/2010/100415Fly_ash-1.asp
  • Salton, Jeff. "New 'green' geopolymer concrete delivers win-win for industry and the planet." Gizmag.com. Oct. 2, 2009. (April 16, 2012) http://www.gizmag.com/green-geopolymer-concrete-technology/13016/
  • van Riessen, Arie. "Geopolymers Program." Curtin University of Technology. (April 16, 2012) http://www.csrp.com.au/projects/geopolymers.html

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