The Romans built structures that have stood for thousands of years. Modern bridges start to crumble after only a few decades. Why? Chemistry and centuries of trial-and-error 🥽⚗️🧫🧪 spacedaily.com/sd-roman-con...
Roman concrete piers built along the Mediterranean coast 2,000 years ago are still standing, and the reason is that seawater seeping into the mix triggers a chemical reaction that grows crystals of al...Roman marine concrete, mixed with volcanic ash and seawater, grows crystals of aluminous tobermorite in its pores for centuries — a self-strengthening chemistry that modern Portland cement cannot matc...spacedaily.com