"The #cement industry alone accounts for nearly eight percent of human-caused CO2 #emissions.
The Cambridge researchers approached the problem by looking at an industry that was already well established—steel recycling, which uses electric-powered furnaces to produce the alloy.
Instead of waste being produced, the end result was recycled cement ready for use in #concrete, bypassing the emissions-heavy process of superheating limestone in kilns."
"A research group at RMIT University in Melbourne, Australia, found a way to replace 80% of the #cement in #concrete with a waste product from coal-fired power plants.
#FlyAsh is mainly comprised of silicon, oxygen, aluminum, iron, and calcium. By adding nano silica and hydrated lime to their fly ash, the RMIT team have successfully produced concrete with 65% and 80% replacement of cement."
An MNC is the target of a civil claim for its role in #climateChange. It is #Holcim (which bought Lafarge in 2015, just after the bribes to the terrorist organisation "Islamic State").
The Cantonal Court of Zug has ruled "that the court costs and lawyers' fees will be borne by the State."
This week, Lukas spends time with the Living Ports consortium in the port of Vigo. Divers extract #concrete tiles that PhD student Siff Nejst Lørup from DTU will analyze to determine the level of chloride penetration. Living Ports uses the special concrete designed by ECOncrete which is more hospitable to marine life than conventional products.
Tired of theory and abstract matter? Our website is the place to learn about coastal sand.
The S.AND website is collecting 'tangible' accounts of ongoing ethnographic research in the Afrasian Sea and other oceans. For instance, check out Lukas Ley's fieldnote on diving in the harbour of Marseilles and the formation of "natural concrete": https://s-and.org/blog/touching-calcification. Over the year, there will also be articles, pictures, and other insights from our fieldwork and even the occasional joke. #sand#anthropology#concrete#fieldwork @academicchatter