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1. Measure the work-ability of cement.

2. Determining the quality test of cement.

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Normal consistency of cement?

Consistency means amount of water needed to prepare a plastic mix.Consistency test is done using Vicat's appartus.Consistency of cement should be less than 30%consistency test is used to find the amount of water to be mixed with cement.It is necessary to find the consistency because amount of water present in the cement paste may affect the setting time.standard consistency is indicated by the vicat plunger reading (5 to 7) from the bottom of mould(IS 4031 (part 4)1988)


Does this cement satisfy ASTM standared requirements for normal consistency?

To determine if the cement satisfies ASTM standard requirements for normal consistency, one must refer to the specific ASTM standard applicable to the type of cement in question, such as ASTM C150 for Portland cement. Normal consistency is typically assessed by conducting a Vicat needle test, which measures the water content required for the cement paste to achieve a specific penetration depth. If the results fall within the acceptable range specified in the standard, then the cement meets the normal consistency requirements. Always consult the latest version of the relevant ASTM standard for precise criteria.


Why it is not possible to determine the value of low resistance using neon flash lamp experiment?

In the neon flash lamp experiment, the resistance of the lamp is very low, often in the range of a few ohms. When measuring low resistance, the resistance of the connecting wires and contacts becomes significant and can interfere with the accuracy of the measurement. These additional resistances create uncertainties in determining the exact value of the low resistance of the lamp. Additionally, the behaviour of the neon lamp itself, which is a non-linear device, further complicated the measurement process. Therefore, it is challenging and difficult to accurately determine the precise value of low resistance using this method.

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What is the importance of standard consistency test?

by standard consistency test we determine standard consistency of cement which is denoted by p. as we know standard consistency value for a cement its value is used for making the paste for determining setting time, soundness, compressive strength of cement


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