Australian scientists are trying to close the loop on steel waste and sewage wastewater. When they made new concrete using these waste materials, the results were 17 percent stronger than concrete ...

Add Yahoo as a preferred source to see more of our stories on Google. A close-up view of a mound of pea gravel - Suebsiri/Getty Images Mixing pea gravel with concrete is not only possible, it's ...

Researchers examined whether steel slag that had been used to treat wastewater could then be recycled as an aggregate material for concrete. Their findings? Concrete made with post-treatment steel ...