Scientists have discovered the secret to the durability of Roman concrete: the presence of small, millimeter-scale mineral inclusions. These inclusions, formed from the mixing process, create a self-healing mechanism that allows the concrete to repair cracks over time. The Romans used volcanic ash, lime, and seawater to create this remarkably resilient material. Understanding the composition and self-healing properties of Roman concrete could lead to the development of more durable and sustainable modern construction materials.
