The resource utilization of waste is important in the construction of an ecological civilization. Agricultural waste contains rich renewable resources and has high potential value in fertilization and energy conversion. Anaerobic ...
Biotechnology
Oct 17, 2023
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1
Rare-earth elements are in many everyday products, such as smart phones, LED lights and batteries. However, only a few locations have large deposits worth mining, resulting in global supply chain tensions. So, there's a push ...
Materials Science
Jun 23, 2021
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6
Concrete has become our building material of choice for countless structures such as bridges, towers and dams. But it also has a huge environmental footprint mostly due to carbon dioxide emissions from the production of cement—one ...
Materials Science
Jan 11, 2021
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77
Fly ash generated by coal-fired power stations is an environmental headache, creating groundwater and air pollution from vast landfills and ash dams. Some of the waste product can be repurposed into geopolymer concrete, such ...
Polymers
May 7, 2020
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6
Concrete is the most widely used man-made material, commonly used in buildings, roads, bridges and industrial plants. But producing the Portland cement needed to make concrete accounts for 5-8% of all global greenhouse emissions. ...
Materials Science
Nov 19, 2019
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10
Scientists at Kaunas University of Technology (KTU), Lithuania are developing methods for producing concrete without cement, using fly ash, an industrial waste product. The final product is as strong as traditional concrete, ...
Engineering
Nov 1, 2018
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14
Rice University engineers have developed a composite binder made primarily of fly ash, a byproduct of coal-fired power plants, that can replace Portland cement in concrete.
Materials Science
Jun 18, 2018
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176
Road salt, used in copious helpings each winter to protect them from ice and preserve safe driving conditions, is slowly degrading the concrete they're made of. Engineers have known for some time that calcium chloride salt, ...
Engineering
May 18, 2017
1
6
Portland cement has been around for more than 250 years as the binding material for concrete, mortar and stucco, but a Missouri University of Science and Technology researcher is studying ways to make concrete without the ...
Engineering
Mar 15, 2017
2
9
VTT Technical Research Centre of Finland examined, as part of the EU's Reffibre project, whether new industrial applications could be developed for various types of sludge and fly ash generated by the paper and board industry. ...
Materials Science
Feb 27, 2017
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5
