Ready mixed screed and concrete are made up of the similar materials, and, when cured, they look similar. However, they have different qualities and do not serve the same purpose (check out our blog to find out more).
While concrete is strong and used as a functional, solid base, screed is less robust, and is often used as a top layer or finish for a concrete floor.
Screed is a soil-like type of concrete that consists of very fine bits of sand and cement. In its dry form, the maximum size of each grain of aggregate is 4mm. This means that, when the floor screed is mixed with water, it has a much smoother appearance than liquid concrete. So, it is often poured over uneven or rough concrete floors to give them a neat, even finish.