What are the raw materials used for the production of Portland pozzalana cement?What are the main stages of manufacturing Portland pozzalana cement?
The raw materials required for manufacture of PPC are OPC clinkers with 10 – 25 % of Pozzolanic material. The Pozzolanic material used are calcined clay (IS: 1489 part II of 1991) or fly ash (IS: 1489 part I of 1991).
The main stages of manufacturing Portland pozzalana cement are:-
How standard consistency test is done on cement? Explain the procedure briefly.
Explain Kelly Ball to measure the workability of concrete. Mention the limitation of the test.
What are common causes of weir failure?
What is the impact of soil permeability on irrigation efficiency?
Define a weir and its function in water management.
What is Kor watering and Kor Period?
What is under-reinforcement of a beam?
What role do meander cutoffs play in river dynamics?
What is the hydrologic cycle?
Explain the doubly reinforced structure.