Driveways that use gravel are extremely common and have been for hundreds of years. Why? Because they are durable, easily repaired, attractive, ecologically sound, long-lived, and affordable. Hard to ...

So, they set out to tackle this problem. Thermoactivation They took existing concrete waste and pulverized it, turning it into a fine powder. Then they cooked it at 932 °F (500 °C), which is about a ...

Ultra-high-performance concrete (UHPC) is rapidly emerging as a premier material for precast concrete construction. First introduced as “reactive powder concrete” in the early 1990s, this material has ...

A photobioreactor, which looks like a large vat of blue liquid with pink light shining, at Prometheus Materials. Stimulated by light, microbes in this bioreactor multiply and react carbon dioxide with ...

Turner Construction Co. and local ready-mix producer Boston Sand & Gravel report they are the first to place concrete with Sublime Systems' zero-carbon cement in a mud mat in an industrial project in ...