Pavegrip is injected into the liquid asphalt cement. Three methods are recommended for injecting Pavegrip Additive to your asphalt cement:
At the asphalt terminal, the correct amount of additive can be placed in the bottom of the tanker before the asphalt cement is loaded (added either manually or pumped in). When the asphalt cement is loaded the turbulence will provide sufficient mixing;
Simple drum or tote use at the plant when unloading a tanker of asphalt cement. This method involves placing a Tee in the line before the asphalt cement unloading pump. Using a scale and a flow control valve, the proper amount of additive can be drawn into the line using the suction of the unloading pump.
Use of a storage tank with a metering system (with metering pump) is the most accurate and most common. In this case controls are used to set the flow rate of the additive into the tank during unloading of the asphalt.