Give the physical characteristics of 53 grade OPC.
OPC means Ordinary Portland Cement. If the 28 days strength is not less than 53 N/mm2. It is called as 53 grade cement as per IS: 4031-1988.
OPC 53 grade cement is manufactured as per specification laid down by ministry of railways under IRS:T40-1985. It is a very finely ground cement with high C3S content designed to develop high early strength.
Short notes on :
Explain Kelly Ball to measure the workability of concrete. Mention the limitation of the test.
What are the initial and final setting times of cement ? How are they experimentally determined ?
Short notes on :
Write notes on Mixing and Mixer machines of concrete.
