A homeowner wowed Redditors with stunning photos of their tiny house made of a distinct, sustainable material. Instead of ...
See, ancient Roman concrete is much stronger than the modern stuff we use these days. Modern concrete is mainly based on Portland cement—which was created in England in the 19th century.
He spread his arms as if circumscribing the entire Roman world. Modern concrete, based on a material known as Portland cement, was developed in England in the 19th century and is the world’s ...