V-MAR VSC500 is a multifunctional liquid chemical admixture specifically for making quality pervious concrete. The enhanced rheology controls the hydration of cementitious materials, providing consistent quality, improved flowability, broader moisture tolerance, and reduced evaporation. As a result, the pervious mixture is discharged from trucks faster, workability times are increased, and finishability and compaction improved, thus reducing the raveling potential in harsh environments. Grace Construction Products. 877-423-6491. www.graceconstruction.com