Concrete durability research aims to bridge the gap between theory and practice. It's a complex field where variables are hard to control, and lab tests may not reflect real-world conditions. Engineers and builders, who aren't durability experts, must balance many factors when designing structures. To make research useful, practical rules must be created that are logical, clear, and cost-effective. Developing a framework for design life, maintenance, and serviceability of concrete structures is crucial. Two approaches to specifying durability are suggested.