MIT Researchers Develop New Additives For “Green” Concrete
Cementing CO2 into C-S-H: A step toward concrete carbon neutrality.
Approximately half of the emissions associated with cement production come from the burning of fossil fuels such as oil and natural gas, which are used to heat up a mix of limestone and clay that ultimately becomes the familiar gray powder known as ordinary Portland cement . While the energy required for this heating process could eventually be substituted with electricity generated from renewable solar or wind sources, the other half of the emissions is inherent in the material itself.
“It’s all very exciting,” Masic says, “because our research advances the concept of multi-functional concrete by incorporating the added benefits of carbon dioxide mineralization during production and casting.”The other good news is that the resulting concrete sets much more quickly via the formation of a previously undescribed composite phase without impacting its mechanical performance. This process thus allows the construction industry to be more productive.
The idea of early stage concrete carbonation is not new. There are several existing companies that are exploring this approach to facilitate carbon dioxide uptake after concrete is cast into its desired shape. However,the current discoveries by the MIT team highlight the fact that the pre-curing capacity of concrete to sequester carbon dioxide has been largely underestimated and underutilized.
Brasil Últimas Notícias, Brasil Manchetes
Similar News:Você também pode ler notícias semelhantes a esta que coletamos de outras fontes de notícias.
MIT Researchers Twisted Apart Hundreds of Oreos to Find the Perfect MethodWho says science can't be fun? Research explores the age-old question of the best way to twist an Oreo cookie and if you can actually split the crème evenly on both sides.
Consulte Mais informação »
Stark County high school students develop new way alert drivers at dangerous intersection for class projectIn Stark County, a group of high school students is working on a solution for a dangerous intersection.
Consulte Mais informação »
New Funding, New Era, New Stages for the Millennium Youth Entertainment ComplexThe Eastside's Millennium Youth Entertainment Complex enters a new era as one of the first sites to benefit from Austin’s Cultural Trust.
Consulte Mais informação »
Google researchers name new North Korea state-backed hacking groupAPT43 engages in espionage against the U.S. and South Korea, as well as criminal crypto hacks.
Consulte Mais informação »
New Eco-Friendly Home Insulation Cuts Heating & Cooling Costs - CleanTechnicaResearchers at ORNL have developed new insulation materials that are more environmentally friendly than polystyrene.
Consulte Mais informação »
New 'Guardians of the Galaxy: Vol. 3' Image Shows Rocket Raccoon in His New UniformA new image from Guardians of the Galaxy: Vol. 3 highlights Rocket Raccoon in his brand new superhero uniform.
Consulte Mais informação »