Grooving Tool For Liquid Limit Test. • liquid limit device • astm “casagrande” grooving tool • ceramic bowl • spatula • wash bottle • distilled water • balance (0.01g sensitivity) • drying oven • no. The liquid limit is the water content corresponding to n=25, as obtained from the plot.
The plastic grooving tool is used to control the width of the soil groove in the liquid limit cup. Using the grooving tool, cut a groove at the center line of the soil cup. Atterberg limits (liquid limit testing) liquid limit testing determines the water content at which soil changes from a liquid to a plastic state.