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How to Form, Pour, and Finish Concrete

A step-by-step look at working with concrete—from building forms to pouring and finishing for a strong, smooth result. Crime sparks state of emergency in New Mexico: What we know Here’s Why You May ...
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 ...
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 ...