CONSISTENCY test of cement

CONSISTENCY

In this post we discuss how to find consistency of cement

After reading you will be able to answer 🤔

1) what is normal consistency?

2) what is the time of testing?

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i) Consistency Test

This test is to ultimate the quantity of water to form a cement paste having plastic 
nature.

APPARATUS

Vicats apparatus uses to test consistency

Normal consistency is defined as the percentage of water required for cement paste in which Vicat plunger can penetrate 3-5mm or up to 7mm up from bottom. To achieve this penetration level, mixed amount of water is the consistency of cement.

Time of Testing = Within 5-7 min after mixing of water

NOTE:

 Normal consistency of OPC cement is equal to 30%.