Concrete

Roman Building Techniques – Stronger Than We Thought

There is something unusual about Roman sea walls: they last for a┬ávery long time. In fact, while modern concrete erodes when exposed to seawater and eventually requires replacement, Roman concrete grows even stronger. Professor Marie Jackson at the University of Utah investigated the old concrete using imaging techniques called electron microscopy, X-ray micro-diffraction, and Raman spectroscopy. The Romans made concrete out of a mixture of … Continue reading Roman Building Techniques – Stronger Than We Thought