Discussion
Blended cement reduces energy per tonne of cement chiefly because the blending material
Answer: C
Correct answer: needs no calcination
Most of the energy in cement making goes into calcining limestone, driving carbon dioxide out of calcium carbonate. Fly ash and slag are already the products of other high temperature processes and need no calcination at all, so every tonne of them substituted for clinker saves both the fuel and the process emissions of that tonne.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development