In a grade slab, the two key elements of protection of the concrete floor lies in surface protection and the joint edge protection. Typically more than 90% of the problems that exist in a floor arise from either joint damage or surface damage. It becomes very important to protect these two elements for an extended service life of the floor, with minimal repair or maintenance costs. It is imperative to choose two key elements that protect the floors – the surface hardener and armoured joints. Let’s dive deep into what these do in a floor and what are the key aspects that you keep in mind while using and selecting them.