The notion that Roman Concrete was a superior building material is a common internet myth that oversimplifies the truth. In reality, the ancient Romans didn’t follow a standardized formula or conduct controlled tests to ensure consistent performance. As a result, the strength of their concrete blocks was unpredictable and unreliable.
In contrast, modern concrete production involves deliberate and scientific mixing of raw materials, yielding far better results. Moreover, the lack of standardization in ancient times has led to a distorted view of Roman Concrete as a single, wonder material. In reality, it was a diverse range of materials, and many structures made with these mixes failed quickly.
Our goal today is 100% reliability, even if that means sacrificing longevity. Take the Aqua Marcia, for example, which has undergone numerous repairs throughout history and now appears degraded. While Roman Concrete may have had some successes, it’s essential to approach building materials with a critical and nuanced perspective, recognizing both their strengths and weaknesses.