1.High temperature resistance,
2.High tensile strength,
3.Acid erosion resistance,
5.Resistant to high humidity,
6.High content of water and anchoring agent,
7.High compression ratio.
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Acid-resistant castables, using special fine coke, primary quartz and some corundum as aggregate, acid-resistant cement and pure calcium aluminate cement as binder, and adding ultrafine powder and composite additives. It has the advantages of high temperature resistance, acid corrosion resistance and strong wear resistance.
The acid-resistant refractory castable has high fluidity and is suitable for cast-type amorphous refractories.
It is widely used in the working lining parts of acid-resistant chimneys, liquid sulfur pools and related similar thermal equipment widely used in the petrochemical industry.
The general composition ratio of the acid resistant refractory castable is:
Acid-resistant refractory aggregate 60%-70%,
Acid-resistant refractory castable powder 30%-40%,
The water glass solution is 13%-16% (density of 1.38-1.42 g/cm3).
When sodium fluorosilicate is used as a hardening agent, it is added in an amount of 10% to 12% by mass of the water glass solution.
|Acid Resistant Castable|
|Acid Resistance %||≥98.5|
|Bulk Density (110℃×24h) g/cm3||≥2.20|
|Cold Crushing Strength (110℃×24h) Mpa||≥30|
|Cold Crushing Strength (1350℃×24h) Mpa||≥45|
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