Alkali-Resistant Bricks

Alkali-resistant bricks are characterized by high strength, good volume stability, and excellent resistance to alkali corrosion. During use, they react with alkali to form a high-viscosity glass phase that prevents the penetration of alkaline slag, demonstrating good corrosion resistance against metallurgical slag, cement clinker, and other materials.

Send Message WhatsApp

Physical and Chemical Indicators

Item	Ordinary Alkali-Resistant Bricks	High-Strength Alkali-Resistant Bricks	Vault-Type Alkali-Resistant Bricks	Lightweight Alkali-Resistant Bricks
Al₂O₃ (%)	25~40	25~45	30~35	/
Fe₂O₃ (%)	≤ 2.0	≤ 2.0	≤ 2.0	/
Bulk Density (g/cm³)	≥ 2.1	≥ 2.2	≥ 2.2	≤ 1.65
Apparent Porosity (%)	≤ 20	≤ 18	≤ 20	/
Refractoriness Under Load (0.2MPa, ℃)	≥ 30	≥ 60	≥ 40	≥ 15
Thermal Shock Resistance (Cycles, 950℃ air cooling)	≥ 1350	≥ 1300	≥ 1350	/
	/	≥ 80	/	/

Related Products

Phosphate-Bonded High Alumina Bricks

Based on their characteristics, phosphate-bonded high alumina bricks are mainly classified into phosphate-bonded high alumina bricks, phosphate-bonded wear-resistant bricks, and special phosphate bricks.

Mullite Bricks

Mullite bricks possess excellent high-temperature performance, high strength, high refractoriness under load, superior thermal shock resistance, and good chemical stability. They exhibit good corrosion resistance against acidic and low-alkaline slags.

Corundum Bricks

Corundum bricks feature high refractoriness under load and excellent chemical stability. They have strong resistance to acidic or alkaline slags, liquid metals, and molten glass, along with a dense structure.

Corundum Mullite Bricks

Corundum mullite bricks are characterized by high-temperature resistance, erosion resistance, chemical corrosion resistance, high cold crushing strength, high refractoriness under load, and good thermal shock stability.

Sillimanite Bricks

Sillimanite bricks feature a low thermal expansion rate, excellent resistance to corrosion from metallurgical slag and various molten glasses, and good high-temperature wear resistance. They have good high-temperature thermal stability, minimal pollution to molten glass, and high refractoriness under load.