Civil Engineering - Building Materials - Discussion
Discussion Forum : Building Materials - Section 1 (Q.No. 22)
22.
The main constituent of fly-ash, is
Discussion:
12 comments Page 1 of 2.
Saurabh singh said:
1 decade ago
How all four can be main constituents?
Vinaych said:
1 decade ago
Chemical composition and classification
Component Bituminous Subbituminous Lignite
SiO2 (%) 20-60 40-60 15-45
Al2O3 (%) 5-35 20-30 20-25
Fe2O3 (%) 10-40 4-10 4-15
CaO (%) 1-12 5-30 15-40
LOI (%) 0-15 0-3 0-5
Component Bituminous Subbituminous Lignite
SiO2 (%) 20-60 40-60 15-45
Al2O3 (%) 5-35 20-30 20-25
Fe2O3 (%) 10-40 4-10 4-15
CaO (%) 1-12 5-30 15-40
LOI (%) 0-15 0-3 0-5
Jayesh said:
10 years ago
Component : Bituminous : Subbituminous : Lignite.
SiO2(%) : 20-60 : 40-60 : 15-45.
Al2O3(%) : 5-35 : 20-30 : 20-25.
Fe2O3(%) : 10-40 : 4-10 : 4-15.
CaO(%) : 1-12 : 5-30 : 15-40.
LOI(%) : 0-15 : 0-3 : 0-5.
SiO2(%) : 20-60 : 40-60 : 15-45.
Al2O3(%) : 5-35 : 20-30 : 20-25.
Fe2O3(%) : 10-40 : 4-10 : 4-15.
CaO(%) : 1-12 : 5-30 : 15-40.
LOI(%) : 0-15 : 0-3 : 0-5.
(1)
Jeevitha said:
9 years ago
What is the difference between bitumen, sub-bitumen and lignite?
Kumar said:
9 years ago
What is subbituminous?
Dhirajmeena said:
9 years ago
What is fly ash?
Apcivilian said:
9 years ago
Fly ash is a product of coal combustion process.
Marom dong said:
8 years ago
Nice explanation, thank you all.
Apcivilian said:
8 years ago
Fly ash is volcanic ash and coal combustion process ash in powdered form,
It doesn't contain cementious property in itself but when react with Caoh2 in cement it form cementious compounds CSH gel! Increase its strength!
It doesn't contain cementious property in itself but when react with Caoh2 in cement it form cementious compounds CSH gel! Increase its strength!
Deepak said:
7 years ago
Fly ash is a byproduct from burning pulverized coal in electric power generating plants. During combustion, mineral impurities in the coal (clay, feldspar, quartz, and shale) fuse in suspension and float out of the combustion chamber with the exhaust gases.
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