Enduring structures

Historical buildings were often over-engineered with a focus on longevity. Materials like limestone, granite, and high-quality timber were chosen for their durability and local availability. Roman concrete, a remarkable example, used volcanic ash to create a self-healing material that strengthened over time, unlike modern Portland cement, which can degrade under environmental stress.

In contrast, modern construction prioritises cost-efficiency and speed. Reinforced concrete and steel dominate, but their quality varies. While steel provides excellent tensile strength, corrosion is a persistent issue if not properly maintained. Modern concrete often incorporates additives to accelerate curing, which can compromise long-term durability. And, while modern tools like finite element analysis enable precise designs, they can also lead to over-optimisation, reducing safety margins. We must blend the best of both eras: combining the durability-focused mindset of ancient builders with modern innovations like high-performance concrete and seismic dampers. By prioritising quality materials, robust designs and stricter regulatory oversight, we can create buildings that endure as long as their historical counterparts.

Engr Shahid Ullah Khan Tator

Dera Ismail Khan