Glass Reinforced Concrete Slump Tester is used for the determination of the slump value of cement slurry. The dry tube is placed on the target plate coincident with the innermost ring and is then completely filled with slurry under test. The tube is then lifted vertically off the plate by hand thereby allowing the slurry to flow over the target area of concentric circles. The slump value is given by the extent of flow of the slurry and is expressed on the scale 0-8.
