12. TESTING OF CEMENT – PART 1.
Setting Time Test Cement paste of standard consistence is used for this test. Vicat apparatus is used, but the plunger is replaced by the steel needle in the form of a right cylinder of effective length 50 ± 1 mm and diameter 1,13 ± 0,05 mm. The total mass of moving part is 300 ±1 g. Procedure calibration of Vicat apparatus with the needle is the same as for the apparatus with the