Items
|
Silica refractory mortar
|
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Refractoriness (° C)
|
≥1580
|
≥1670
|
≥1690
|
≥1670
|
≥1690
|
≥1690
|
≥1710
|
≥1710
|
|
Bonding time(min)
|
1-2
|
1-2
|
1-2
|
1-2
|
1-2
|
1-2
|
1-2
|
1-2
|
|
Chemical
composing(%)
|
SiO2
|
≥85
|
≥92
|
≥94
|
≥92
|
≥94
|
≥94
|
≥94
|
≥96
|
Al2O3
|
-
|
-
|
≤1
|
-
|
-
|
≤1
|
≤0.5
|
≤0.8
|
|
Fe2O3
|
-
|
-
|
-
|
-
|
-
|
≤1
|
≤0.5
|
≤0.7
|
|
Flexural bond strength(MPa)
|
110°C×24h
|
≥1
|
≥1
|
≥1
|
≥0.5
|
≥0.5
|
≥0.8
|
-
|
≥0.8
|
1400°C×3h
|
≥3
|
≥3
|
≥3
|
≥1.5
|
≥1.5
|
≥2
|
-
|
≥0.5
|
|
0.2Mpa refractoriness under
load(°C)
|
≥1420
|
≥1500
|
≥1600
|
-
|
-
|
≥1600
|
≥1650
|
≥1620
|