Floor Screening Mix

Floor screed is composed of cementitious materials and sand blended based on a suitable mix design and applied to provide a leveled surface for the floor finish which is introduced to the surface of the floor screed.

Floor screening mix.

Screeding a floor is the simple act of applying a well blended mixture of ordinary portland cement with graded agregates and water to a floor base in order to form a sturdy sub floor that is capable of taking on the final floor finish or act as a final wearing surface. The mix should stay in one firm lump in your hand but very little liquid if any should come out. The mix should be fairly dry. A factory mixed formulation of double washed and graded coarse sands cement and additives to provide a strong crack free base.

Sand the size and shape of sand can have a considerable impact on the performance and appearance of a screed. Mix polypropylene fibers into the screed mix before adding water or order ready to use screed with polypropylene. Mix your floor screed at 4 sand to 1 cement. The sand should conform to the correct grading as defined by the british standard.

If you do not plan to reinforce unbonded screed it s a good idea. Thin screed mix when we are talking about thin screed mix you have to look at what you are trying to achieve with them. So floor screed is the base for the floor finish and greatly influences the performance of floor finish. What your substrate is what products can you use that will go down to the desired thickness that you are looking for.

We start by adding half of the sand into the forced action mixer. The way to tell if you have it right is to grab a handful of mixed screed put your marigolds on first and squeeze. Lay the timber onto the floor following the plan shown and place a spirit level onto the timber. Alternatively position crack control steel mesh over your subfloor so it will sit in the top half of your screed.

The mix ratio is one part cement to four parts sand and that is by weight.