The Economist

How to make low-carbon concrete from old cement

The world gets a little greyer every year. According to a paper published in 2014 concrete—an aggregate material made by mixing cement, sand and gravel—is the second-most consumed substance in the ...
Los Angeles Times

Cement is a big part of the carbon problem. Here’s how to make it part of the solution

In 2014, hundreds of Angelenos gathered downtown to watch more than 2,000 trucks pour concrete into a vast hole. During that event, Los Angeles set a world record: 80 million pounds of concrete were ...
Scientific American

Solving Cement’s Massive Carbon Problem

Concrete is everywhere: in buildings, roads, sidewalks, bridges and foundations for almost every structure imaginable. We make more concrete than we do any other material on Earth, and that volume is ...
Nature

We use 30 billion tonnes of concrete each year — here’s how to make it sustainable

Jianzhuang Xiao is a professor of recycled concrete materials and structures at Tongji University, Shanghai, China, and a vice-president at Guangxi University, Nanning, China. Zongjin Li is a ...