Take the cement in hand and Throw cement into bucket fill with water, if the cement flot on water it means it's good for the work...

Question

Accepted Answer

The cement should sink and not float on water to be good for work.

If the cement floats on water, it means it has a high amount of gypsum or lime and is not suitable for construction.
Good quality cement should sink and settle at the bottom of the bucket.
The test is called the float test and is used to check the quality of cement before use.
The test should be done with clean water and the cement should be added slowly to avoid lumps.
The test is not foolproof and other tests like the compressive strength test should also be done to ensure the quality of cement.

Accepted Answer

Check Grade of cement OPC 33,opc 43 and opc 53 decided consistency of cement 
1 Fineness of cement test
2 consistency test 
3 Initial setting time & Final setting time test
4 soundness test 
5 mortar cube 3 days 7 days 28 days

Accepted Answer

Good quality cement never floats on water, sinking cement has more acidity and gypsum content.

Take the cement in hand and Throw cement into bucket fill with water, if the cement flot on water it means it's good for the work...

Top Nagarjuna Construction Company Site Supervisor, Site in Charge and Site Engineer interview questions & answers

Popular interview questions of Site Supervisor, Site in Charge and Site Engineer