V-MAR VSC500 is a liquid concrete admixture formulated for pervious concrete and designed to enable the product of superior quality pervious concrete by imparting an enhanced paste rheology and controlling the hydration of cementitious materials. The admixture provides consistent quality, improved flowability, broader moisture tolerance and reduced evaporation. V-MAR VSC500 incorporates a patented biopolymer and meets the provisional requirements for ASTM C494 Type D admixture.