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Refractory high alumina cement
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| Model No. : | CA-80 E |
|---|---|
| Brand Name : | KAIYUAN |
| Refractoriness (℃) : | 1770< Refractoriness< 2000 |
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Zhengzhou Kaiyuan Refractories Co.,Ltd
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Product description
Refractory cement CA-80
| Items | CA-80E | CA-80G | CA-80A | |||
| Refractoriness ºC | 1780-1820 | |||||
| Chemical composition % | ||||||
| Al2O3 min | 77 | |||||
| CaO max | 20 | |||||
| SiO2 max | 0.5 | |||||
| Fe2O3 max | 0.5 | |||||
| Na2O+K2O max | 0.4 | |||||
| S max | 0.1 | |||||
| Specific density g/cm3 | 3.2-3.3 | 3.2-3.3 | 3.2-3.3 | |||
| Specific surface area m2/kg min | 650 | 650 | 650 | |||
| Initial setting time minutes min | 30 | 30 | 30 | |||
| Final setting time minutes max | 360 | 360 | 360 | |||
| Rupture strength Mpa |
|
|||||
| 6 hr | 3.0 | - | - | |||
| 24 hr | 4.5 | 4.0 | 4.5 | |||
| 72 hr | 5.5 | 5.0 | 5.5 | |||
| Cold crushing strength Mpa |
|
|||||
| 6 hr | 10 | - | - | |||
| 24 hr | 30 | 25 | 30 | |||
| 72 hr | 40 | 30 | 40 | |||
| Castable performance |
Corundum castable |
Low cement castable |
Corundum castable |
Low cement castable |
Corundum castable |
Low cement castable |
| Water addition % | 5.2 | 6.8 | 5.2 | 6.8 | 5.2 | 6.8 |
| Flow value mm |
|
|||||
| Initial flow value | 200 | 180 | 207 | 180 | 217 | 159 |
| 30 minutes | 185 | 176 | 190 | 171 | 195 | 150 |
| 60 minutes | 177 | 166 | 180 | 164 | 190 | 151 |
| Cold crushing strength Mpa |
|
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| 24 hr room temperature | 15 | 15 | 14 | 15 | 14 | 15 |
| 110ºC dry 24hr | 71 | 86 | 76 | 102 | 67 | 70 |
| 1100ºC heating 6 hr | 51 | 119 | 55 | 118 | 47 | 118 |
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