Volume 92 Issue 40 | pp. 34-35 | Concentrates
Issue Date: October 6, 2014

Cement’s Magic Number

Computational study reveals the optimum ratio of calcium to silicon for making cement, with the bonus of reducing CO2 emissions
Department: Science & Technology | Collection: Climate Change, Sustainability
News Channels: Analytical SCENE, Environmental SCENE, Materials SCENE
Keywords: cement, concrete, greenhouse gases, carbon dioxide, computational chemistry

Concrete is the world’s most-used construction material, but it comes with the drawback that its production accounts for about 10% of global industrial CO2 emissions. An international research team sponsored in part by the cement industry and led by MIT’s Roland J.-M. Pellenq has used a computational molecular model for evaluating cement hydrate—the CaO-SiO2-H2O mineral binding phase in concrete—to help overcome the problem. The researchers found that adjusting . . .

To view the rest of this content, please log in with your ACS ID.

Chemical & Engineering News
ISSN 0009-2347
Copyright © American Chemical Society