The Complete Handbook of Concrete Brooms

Chapter 1: Understanding Concrete Brooms

When most people think about finishing concrete, they picture a steel trowel gliding across a smooth slab. A concrete broom is the tool that comes after the trowel, and in many ways, it is more important for the long-term service life of that slab than the smooth finish it replaces. A concrete broom is a specialized finishing tool designed to drag across the surface of fresh, pliable concrete to create a textured, non-slip profile. It is a simple concept, but the engineering, material selection, and timing required to do it correctly are anything but trivial.

The primary function of a concrete broom is to create a mechanical texture on the surface of a slab before the concrete sets. This texture fulfills two critical roles. The first is safety. A smooth, troweled concrete surface becomes dangerously slippery when wet, whether from rain, a spill, or routine washing. The ridges and valleys left by a broom provide traction for foot traffic, vehicle tires, and even animals. On a commercial loading dock or a pool deck, this is not just a convenience; it is a compliance issue and a significant liability. A broom finish is the most common and economical way to bring a concrete surface into compliance with standard slip-resistance targets like those found in ASTM E1745. The second role is purely aesthetic, though no less important. The final finish on exposed concrete is the only part a client will ever see and touch. A well-executed broom