The low cement castable was developed to improve the characteristics of castable at high temperature. Not only the dispersion of cement can be improved, but also the quantity of the cement and the additional water can be reduced. The low cement castable has low porosity、high erosion resistance、 spalling resistance and good high temperature strength refractories.
＼ 代號 Brand
特性質Properties
LAM
LAS
RHAM-1
LCCR-90
LCA-95
最高使用溫度 (℃)
Max. Service Temp.
1800
1800
1800
1800
1800
施工需要量 (T/M3)
Quantity Required
2.95
3.00
3.00
3.05
3.20
添加水量 (%)
Additional Water
6∼8
6∼8
6∼8
4∼6
5∼7
體 密 度(g/cm3)
Bulk Density
110℃×24hrs
1500℃×3hrs
3.00
2.95
3.05
2.95
3.05
3.00
3.10
3.10
3.25
3.20
耐壓強度 (kg/cm2)
Compressive Strength
110℃×24hrs
1500℃×3hrs
200
600
200
600
200
500
450
800
450
800
抗折強度 (kg/cm2)
Modulus of rupture
110℃×24hrs
1500℃×3hrs
40
200
40
200
40
150
60
150
60
200
再熱變形率 (%) 1500℃×3hrs
Permanent Linear Change
+0.8
+0.4
+0.4
-0.4
+0.1
熱傳導率(kcal-m.hr.℃)
Thermal Conductivity
500℃
1000℃
1.8
1.8
1.8
1.8
2.0
2.0
1.5
1.5
3.2
3.0
化學成份 (%)
Chemical Composition
Al2O3
MgO
Cr2O3
90
5
---
92
4
---
94
2
---
85
---
5
96
---
---
用途Applications
盛鋼桶壁部 Ladle wall
盛鋼桶座磚 Ladle nozzle seat
盛鋼桶壁部 Ladle wall
盛鋼桶座磚 Ladle nozzle seat
真空脫氣爐浸漬管 RH
snorkel
高溫窯爐 High temperature furnace
高溫窯爐 High temperature furnace
鋁熔解爐 Aluminium melting furnace
【LOW CEMENT CASTABLES】