What is the first step in finishing a concrete slab?

The first step in finishing a concrete slab is screeding. This process involves leveling the wet concrete surface after it has been poured. The goal of screeding is to create an even surface and remove excess concrete to ensure that it is the proper thickness and has a smooth finish.

Screeding typically utilizes a long board or a screed tool to pass over the surface of the wet concrete, allowing for the precise control of the concrete level with the formwork edges. This is crucial before any further finishing techniques, such as power troweling, are employed, as screeding lays the groundwork for a quality finish.

Other steps mentioned, like power troweling, which is a method used to smooth the surface of the concrete after initial setting, are performed after screeding has been completed. Curing, likewise, is a process following the finishing activities, aimed at maintaining moisture in the concrete to ensure proper hardening. In summary, screeding is foundational and sets up the subsequent steps in the concrete finishing process.