Acidic Dry Ramming Mass

After sintering in the first oven drying, the conversion rate of α-tridymite is high, the oven drying time is short, and it has excellent volume stability, thermal shock stability, and high high-temperature strength.

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Physical and Chemical Indicators

Material	MgO (%)	Al₂O₃ (%)	CaO (%)	SiO₂ (%)	Bulk Density (g/cm³)	Particle Size (mm)	Max Operating Temp (℃)
Silica-based	-	-	-	98	1.9~2.2	0~6	1650
Magnesia-based	≥ 96	＜ 1.5	-	＜ 2	2.85~2.9	0~10	1800
Alumina-Magnesia Spinel-based	11~32	65~88	1	1	2.95~3.15	0~6	1800
Corundum-based	-	90	-	-	2.95~3.15	0~6	1800
Mullite-based	-	＞ 80	-	＜ 16	2.6	0~6	1400
Magnesia-Alumina Spinel-based	75	22	-	-	3.05	0~6	1800

Neutral Dry Ramming Mass

Neutral dry ramming mass is convenient to use, hardens at room temperature, has high high-temperature compressive strength, low thermal expansion and shrinkage rates, and strong resistance to solution corrosion.

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Physical and Chemical Indicators

Material	MgO (%)	Al₂O₃ (%)	CaO (%)	SiO₂ (%)	Bulk Density (g/cm³)	Particle Size (mm)	Max Operating Temp (℃)
Silica-based	-	-	-	98	1.9~2.2	0~6	1650
Magnesia-based	≥ 96	＜ 1.5	-	＜ 2	2.85~2.9	0~10	1800
Alumina-Magnesia Spinel-based	11~32	65~88	1	1	2.95~3.15	0~6	1800
Corundum-based	-	90	-	-	2.95~3.15	0~6	1800
Mullite-based	-	＞ 80	-	＜ 16	2.6	0~6	1400
Magnesia-Alumina Spinel-based	75	22	-	-	3.05	0~6	1800

Basic Dry Ramming Mass

Basic dry ramming mass has the advantages of good high-temperature volume stability, scouring resistance, wear resistance, good thermal shock resistance, and high refractoriness under load.

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Physical and Chemical Indicators

Material	MgO (%)	Al₂O₃ (%)	CaO (%)	SiO₂ (%)	Bulk Density (g/cm³)	Particle Size (mm)	Max Operating Temp (℃)
Silica-based	-	-	-	98	1.9~2.2	0~6	1650
Magnesia-based	≥ 96	＜ 1.5	-	＜ 2	2.85~2.9	0~10	1800
Alumina-Magnesia Spinel-based	11~32	65~88	1	1	2.95~3.15	0~6	1800
Corundum-based	-	90	-	-	2.95~3.15	0~6	1800
Mullite-based	-	＞ 80	-	＜ 16	2.6	0~6	1400
Magnesia-Alumina Spinel-based	75	22	-	-	3.05	0~6	1800

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