Navitas 33 rheology-controlling admixture acts as a lubricant, improving response to vibration and ultimately enhancing consolidation, extrusion, and final surface appearance. Ideal for use in mainline concrete paving, low-slump concrete, curb and gutter, and median barriers, the admixture lowers the yield stress—which means less force is required to initiate flow in the concrete—without affecting the viscosity. www.basf.com