U.S. Customs and Border Protection (CBP) has started the process of testing prototypes for a wall along the southwest U.S. border.Eight of the sample walls were completed in San Diego in October, a… ...

Concrete is the world's most popular building material: we use it to bridge rivers and valleys, build walls and line tunnels. The most common form of concrete is steel reinforced -- a principle ...

A concrete retaining wall can last about 50 to 100 years, after which the degraded material must be hauled away for recycling or disposal, and fresh concrete manufactured to rebuild.

3D concrete printing (3DCP) technology is already known to offer a more efficient approach to constructing buildings. A new type of 3DCP is said to be better, resulting in walls that are a claimed ...

Moreover, the manufacture of concrete is a major driver of climate change, producing 8 percent of carbon dioxide emissions worldwide. By learning the secrets of Roman concrete, researchers like Dr ...