The Gillmore Apparatus is utilized to determine the initial and final setting times of hydraulic cement paste by employing Gillmore needles, as specified in ASTM C266.
This method assesses whether a cement sample meets the required setting time limits, ensuring compliance with relevant standards.
The apparatus comprises two stainless steel needles: one for initial setting time and another for final setting time, each with specified weights and tip diameters.
The initial setting time needle has a weight of 113.4 ± 0.5 g and a tip diameter of Ø 2.12 ± 0.05 mm.
The final setting time needle has a weight of 453.6 ± 0.5 g and a tip diameter of Ø 1.06 ± 0.05 mm.
