TBTVC-1 is used to determine the consistency & setting time, the Vicat frame consists of a metal stand with a sliding rod, an adjustable indicator moves over a graduated scale, the needle or plunger is attached to the bottom end of the rod to make up the test weight of 300 g. The test is performing different penetrations in the specimen during the period of time that goes from the forming inside the special mold to the hardening of the mixture.