Standard Consistency of Cement paste.

The theory

Standard Consistency of Cement paste is defined as that consistency which will permit a vicat plunger having 10 mm diameter and 50 mm length to penetrate to a depth of 33-35 mm from top of the mold.

The purpose of this test is to find out the initial setting time, final setting time and soundness of cement and strength of a parameter known as standard consistency has to be used.

Apparatus

Vicat apparatus IS:5513, Balance 100g, Gauging Trowel, Measuring Cylinder 100ml, Stopwatch, Tray, Glass plate, etc.

Vicat Apparatus for Consistency of Cement paste

The vicat apparatus consists of a frame having a movable rod with a cap at one end and at the other end any one of the following attachments, which are interchangeable:

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