Scraping, chiseling, and pressure washing all loose cement is an important 1st step to a quality repair. 

Applying multiple layers of cement ensures a strong durable finish. This is also referred to as parging.

1st coat = Scratch coat

2nd coat= Brown coat

3rd coat= Finish coat

The 3rd application of cement can have a variety of textured finishes. This example is a smooth sponge float finish.