Traditional terrazzo is made of cement and marble with extra marble chips on the surface. The cement portion is porous and quickly absorbs stains. A penetrating sealer should be applied to new terrazzo floors to seal the pores in the cement and thus retard stains absorption. Resealing may be needed occasionally. Clean as often as needed keep grime and sand removed.
Soil acts as an abrasive and damages the floor.
For best results, use a commercial cleaner made especially for terrazzo. All-purpose household cleaners, soaps, detergents and wax removers usually contain one or more alkalis, and so should not be used on terrazzo. For general cleaning, use once cup of neutral cleaner with each three gallons of water-or follow manufacturers directions. Wet mop the solution onto the floor, and allow the solution to remain several minutes. Then mop up the dirt-filled solution, changing rinse water often.