Concrete Flooring and Treatments

About this course.

Concrete is used as a flooring material because it is strong, hard-wearing, long-lasting, fire-resistant and relatively economical, and because a single slab can serve both as the structure and as the finished floor — either left exposed and treated, or used as the base for another finish. The short answer to what determines how it performs is the concrete itself (its mix, strength and finish), how it was placed, compacted, finished and cured, and the condition of the slab surface you inherit — because every treatment applied later depends on the quality and soundness of the surface beneath it. Understanding the slab as the foundation of everything that follows is the starting point for treating concrete floors well.

Why concrete suits flooring. Concrete's combination of properties is hard to match. It is strong in compression and carries heavy loads, which is why it is the default for warehouses, factories, car parks and other trafficked areas. It is durable and abrasion-resistant when properly made and finished, standing up to foot and vehicle traffic for decades. It is inert and non-combustible, contributing to fire performance. It has useful thermal mass, absorbing and releasing heat slowly, which can support passive comfort and energy efficiency in the right design. And it is versatile as a surface: the same slab can be sealed, densified, polished, coated or overlaid, or covered with another finish such as tiles, timber or resilient flooring. Increasingly, exposed and polished concrete is valued for its appearance and low material use, since it avoids adding a separate floor covering.