Sample of ancient Roman maritime concrete from Pozzuoli Bay near Naples, Italy. Its diameter is 9 centimeters, and it is composed of mortar formulated from lime, volcanic ash and chunks of volcanic ...

His Sanford garage is filled with rock core samples and the works of art he s created from them. Mike Heilig can see beauty in a box of rocks. His Sanford garage is filled with rock core samples and ...

The concept and practice of the Internet of Things (IoT) has been around for a while, but the impact in the modern concrete construction site has only broken the surface. Project managers and foremen ...