Category
High alumina and refractory cement
Classification:
Product Introduction
Product Details
Product Overview:
High alumina and refractory cement, also known as high alumina cement or refractory cement, is a hydraulic cement made from bauxite and limestone as raw materials, calcined to produce clinker with calcium aluminate as the main component and an aluminum oxide content of about 50%, which is then ground into a hydraulic binding material.
Product Details:
High alumina and refractory cement has high early strength, fast setting and hardening, good resistance to sulfate attack, good waterproof performance, and good high-temperature resistance (1350℃—1600℃). It is used in the formulation of amorphous refractory materials, special-purpose cements such as gypsum bauxite expansive cement and self-stressing cement, and for urgent construction, repairs, and projects requiring resistance to sulfate attack.
Physical and Chemical Indicators:
| Characteristic Indicators Project | Unit | Value | As specified in national standard GB201-2000 for CA50 | |
| Specific Surface Area | SSB | m2/kg | 369 | ≥300 |
Chemical Composition | SiO2 | % | 7.41 | ≤8.0 |
| AL2O3 | % | 51.10 | ≥50 | |
| Fe2O3 | % | 2.19 | ≤2.5 | |
| R2O | % | 0.32 | ≤0.4 | |
Setting Time | Initial Setting IS | Minutes | 166 | ≥30 |
| Final Setting FS | Minutes | 223 | ≤360 | |
Flexural Strength | One Day | Mpa | 7.2 | ≥5.5 |
| Three Days | Mpa | 7.7 | ≥6.5 | |
Compressive Strength | One Day | Mpa | 51.9 | ≥40 |
| Three Days | Mpa | 60.6 | ≥50 | |
Keywords:
Kiln Display
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