Cement Fineness Standard for IS Sieve No.9
The fineness of Ordinary Portland Cement is a critical property indicating the particle size distribution. It affects the rate of hydration and strength development.
Testing for fineness involves using specific sieves to determine the amount of cement that passes through or is retained on them.
IS Sieve No.9 Fineness Requirement
According to standard specifications for Ordinary Portland Cement:
- The residue left on I.S. Sieve No.9 when tested for fineness should not exceed 10%.
This limit ensures the cement has adequate fineness for proper performance in concrete and mortar applications.
Important Questions from Concrete
The separation of the constituent materials of concrete is known as:
Creep which is a strain due to loading with no loss of moisture?
The reduction in the strength of cores can be as high as ______ for 40 MPa concrete.
A good method of maintaining a satisfactory state of wetness in a body of concrete to promote continuous hydration when original water/cement ratio used is NOT less than 0.5 is known as:
For keeping concrete wet to enable it to attain full strength is known as
