Vicat Method: Ref. Standards – IS:2542 (Part-2), 2645, 1727, 5513, BS:12, 146, 915, 1370, 4027, 4246, 4248, ASTM C-91, C-141 , C-187, C-308, C-359, C-472 &AASHTOT-129, E-131
Vicat Apparatus is for determining the normal consistency, standard consistency and time of setting of cement and lime in accordance with IS, ASTM, BS and AASHTO specifications. The procedure, as recommended in various standards, is for determining the quantity of water required to produce a cement paste of standard consistency. The standard consistency is attained when the 10 mm plunger of the apparatus penetrates the material to a pre-determined depth under free-fall. A new sample is prepared and tested with initial and final needles in accordance with the procedure described in various specifications.