What is the purpose of consistency test?

Consistency plays a vital role in the determination of compressive strength of concrete or workability test for concrete. A certain quantum of water is necessary to react with cement to make a past with appropriate plasticity.

What is the use of consistency test of cement?

The Consistency of cement test is performed to determine the amount of water content that is to be added in cement to attain Standard consistency or normal consistency of cement.

What is the meaning of consistency of cement?

Consistency of cement is defined as minimum quantity of water added in cement to form uniform paste that provide sufficient viscosity and desirable strength for different type of structural work. Adding less or excess amount of water in cement causes reduction in its strength.

Why do we need standard consistency?

1. Why do we need Standard Consistency Test? Explanation: This test is performed to determine the quantity of water required to produce a cement paste of standard or normal consistency.

What is meant by normal consistency why it is determined?

1. The degree of wetness exhibited by a freshly mixed concrete, mortar, or neat cement grout whose workability is considered acceptable for the purpose at hand. 2. The physical condition of neat cement paste 30 sec after completion of mixing, as determined with the Vicat apparatus in accordance with a specified method.

What is the consistency test?

The consistency test is designed to assess one necessary, but not sufficient, aspect of robustness. That is, the ability to find the same solution regardless of the initial position. For a consistent method, all the transformations, Fj, should be the same as T0.

Why is normal consistency of cement varying for different cement?

The Normal consistency of cement paste depends upon the factors such as temperature and fineness of cement. Higher the temperature and higher the fineness of cement results higher the normal consistency of cement and vice versa.

Why do we test soundness of cement?

The testing of soundness of cement, to ensure that the cement does not show any appreciable subsequent expansion of prime importance. The unsoundness is occurring mainly due to an excess lime that could be combined with acidic oxide at the kiln.

What are the factors which affect the consistency of cement?

Does this cement satisfy ASTM standard requirements for normal consistency?

All cements satisfy the ASTM requirement of the limit of normal consistency of cement (ASTM C187). … indicates that for a certain degree of softness of these cements, less amount of water will be required.