What is the role of Alumina & Silica modulus in Cement Raw mix chemistry by Dr. K. Mohan Sir

Part-4: Alumina Modulus AM: Al₂O₃ / Fe₂O₃ and Silica Modulus SM: SiO₂ / (Al₂O₃+Fe₂O₃)
Silica Modulus is indicator of Burnability of Clinker, Alumina Modulus influences the liquid phase in Clinker.
AM is as a indicator of burning zone temperature
Silica Modulus Range : 2.1 to 2.7, Alumina Modulus Range : 1.3 to 1.6
A: What is effect of Silica modulus in Clinker formation?
1. High SM results hard burning & High fuel consumption, High SM results in 2. higher free lime and higher free lime will lead to unsoundness of cement.
3. Higher SM will deteriorate kiln refractory lining
4. Higher SM results in slow setting & hardening of cement
5. Lower SM will increase liquid phase
6. Lower SM will improve the burnability of the clinker and the formation of coating in the kiln.
B: What is effect of Alumina modulus in Clinker formation?
1. Higher AM imparts harder burning i.e. difficult in burning
2. Higher AM will lead to higher fuel consumtion
3. Higher AM will increase C₃A Content & reduce C₄AF Content.
4. Higher AM will increase both C₃S & C₂S Content in Clinker
5. Higher AM will reduce liquid phase and the kiln output
6. Higher AM will lead to quick setting of cement
7. Higher AM will increases viscosity of liquid phases in Raw mix.
Alumina modulus determine the role of fluxes is also in raw mix
If AM is too low and raw mix is without free silica, then Clk is sticking and boiling will be very high.
If SM is high & AM is too low, then fast setting of cement taken place
#AluminaModulus #SilicaModulus #Cementchemistry #Cement #cementpdm #cementplant #Rotarykiln

[@ajaylohar5684]

Sir pl make video on heat mass balance Limit of false air in raw mill , pyro, coal mill, cement mill section

[@sanjaysoni7444]

Good job sir you provide good information in raw mix

[@Pankajpanda366]

JK Sir I am fan of your style.

[@soumitrapal4672]

Sir, I have one question- FeO content of the refractory for rotary kiln lining should not be more than 0.755%

[@kaushlendrapratapsingh2603]

As per Sir, if Silica modulus has to be reduced then Al2O3+Fe2O3 will increases so automatically affect the alumina modulus. Hence at the condition how will we manage AM.

[@muhammadhamzashakeel6014]

I have a question As sir said ,high AM will give more C3À and setting time will be low. But then he said if SM is high and AM is low , setting time will be low. How? Low AM will reduce C3À and it will increase cement setting time and reduce gypsum adittion potential.

[@BalaBala-qv9sm]

Sir, @0618- Title is contrary to Dr.Mohans observation. Higher AM+Lower SM will set faster whereas in title is just opposite. Pls correct it. Thanks

[@apmalav9637]

Sir please make videos on RABH working & principle

[@rudragoudrudragoud1713]

Hai Sir Why clinker is harder to grind in case of harder burnbility material please comment this

[@rajeshparihar1762]

Sm and am ka video hindi me btaye bhut acha btaya he

[@chilufyabuso8599]

Interesting

[@badramrajusitharamarao1288]

Good evening sir, exlent class 🙏

[@giridhar8575]

Sir I think higher silica easy burning to kiln and decrease to freelime

[@neerajjha9979]

Sir, Good morning. How to reduce AQC temp and smooth operation of cooler.

[@pollisettysaivenkatprasad1194]

Sir, in the kiln inlet ring formation is present what action to be taken

[@arvindgolhani1650]

Thank you sir for this AM & SM and othes

[@sorabhsharma3664]

Very informative sir...Pls make a video abt ash absorption and it's impact on LSF

[@cementpdm]

Sure I will

[@pawannagda9652]

Thank you Dr. K. Mohan sir for this valuable information. I want to ask a question regarding TD5 kiln 300 TPD. Please explain SM, AM & FM in calcination process of CaCO3 to CaO on 900° C ? I have subscribed your chann after saw this video.

[@sachinpiliya6619]

Sir, thanks for sharing your knowledge. very very nice

[@cementpdm]

Thanks and welcome

[@mohitgautam7705]

Sir class nhi lete hai cement chemistry ki

[@manojkumarverma8000]

Clinker me free lime kaise control Kare please tell us

[@AMITKUMAR-lu9dt]

Sir Cement banane ka jo tarika hai uska book hindi midium me milega kya .

[@cementpdm]

Duda

[@Deshmukh1221]

acidic constituent of Portland cement is about what %

[@chilufyabuso8599]

Please include English subtitle

[@RaghuRaghu-mk1en]

What use short flame and long flame

[@amitkumar-ft7st]

Sir free lime q dekhte hai?

[@vviicckkyypatil2645]

Nice video sir. .

[@cementpdm]

Thanks and welcome

[@RaghuRaghu-mk1en]

How to remove rings in kiln

[@vaidiknagar8575]

Clinker me liquid ko kese maintain kare

[@vaidiknagar8575]

What is the molar ratio

[@rohandambal7382]

Super sir

[@rameshpal5250]

Thanks sir.

[@apmalav9637]

Very good 👍

[@cementpdm]

Thank you 👍

[@ashutoshtiwari8696]

What is the function of iron ore in silica modulus?

[@HiVlogWelcomeToMyGuyz]

It affects the burnability of clinker so liquid phase/melt. High sm means high silica means hard burning. That's why increasing of iron or decreasing of Am is applicable

[@vagishpandey1528]

Nice sir

[@cementpdm]

So nice

[@JitendraKumar-ig4sy]

Hello sir mgo high clinker cement what effect cement

[@cementpdm]

Increase dry Shrinkage & Crack further, when Cement will be used.

[@rajeshparihar1762]

Sir ye video hindi me bolo