Why do some floors wear so much better than others ?
Wear resistance is a function of the compressive strength of the concrete within the range of 3000 to 6000 psi; at strengths below 2500 psi wear resistance drops very rapidly. The degree of toughness, hardness and density of the aggregate also contributes directly to wear resistance. Wear resistance increases with the number of steel trowelings and with the amount of curing time (up to a maximum of about 30 days).