Can I use mortar mix in bags (or sand mix, or concrete mix) for making art?
Yes. To improve it’s workability and final strength you might want to add a pozzolan and perhaps some plastic fibres. Usually sand mix in a bag is about 1 part cement to 3 parts sand. If you are doing a lot of work it is cheaper to buy the cement and sand separately. 27) What is a screed and render? Screed is a mortar applied to a floor and render is a mortar applied to a wall. A screed is a better-known term used for batten nailed to the floor for the purposes of getting a flat application of mortar. 28) Why use a plasticiser? The amount of water needed to achieve a specific workability will be reduced. Theoretically, this will make the mortar stronger and this could increase the sand content. 29) What do plastic fibers do? There are three kinds of plastic fibers, all available in different lengths and thicknesses: polypropylene, nylon and PVA or polyvinyl alcohol. When concrete first sets, it shrinks, sometimes causing shrinkage cracks. These cracks can later develop into bigger crac
