Description
The first hardening time of the concrete is when the cement paste starts to harden, and the last hardening time is when the cement paste is sufficiently hardened and the 1 mm needle affects the cake in the mold but the 5 mm needle cannot.
Theoretically, the initial drying time of the concrete, the time between the 1 mm square cross-section needle and the addition of cement to the water until the elapsed time, cannot enter Vicat’s mold into the cement paste placed within 5 mm to 7 mm from the bottom of the mold. The final adjustment time is the time between the time added to the cement and the 1 mm needle has an effect on the putty in the mold, but the 5 mm insert has no effect.
-Cement Setting Time Finding Procedure-
Required Device
- Vicat’s device
- Balance
- Measuring roller
- Stop watch
- Glass dish
- Enamel tray
Trowel
