The possibility of using fly ash in place of Portland cement could see concrete forms become a little greener in the future.
Eco-conscious construction resource Sustainable Build notes that existing concrete has some environmental credentials - not least because it is itself hewn from the ground as part of nature.
But scientists at Louisiana Tech University have developed a method of using fly ash in concrete forms that they claim could improve sustainability further during the use of cementitious materials.
Dr Erez Allouche, research director at the university's Trenchless Technology Center, says: "If the public is aware that there are more sustainable ways to construct our highways and bridges, it will expect its government agencies to explore and promote these greener technologies."
Fly ash can also create concrete with favourable physical characteristics, including heat resistance up to 2,400 degrees F (1,315 degrees C) and high strength under both tension and compression.
Posted by Jude Whitehouse
Eco-conscious construction resource Sustainable Build notes that existing concrete has some environmental credentials - not least because it is itself hewn from the ground as part of nature.
But scientists at Louisiana Tech University have developed a method of using fly ash in concrete forms that they claim could improve sustainability further during the use of cementitious materials.
Dr Erez Allouche, research director at the university's Trenchless Technology Center, says: "If the public is aware that there are more sustainable ways to construct our highways and bridges, it will expect its government agencies to explore and promote these greener technologies."
Fly ash can also create concrete with favourable physical characteristics, including heat resistance up to 2,400 degrees F (1,315 degrees C) and high strength under both tension and compression.
Posted by Jude Whitehouse