Semen Kerui Ferroaluminate terutama terdiri dari kalsium aluminat (CA) sebagai fase mineral utamanya, dengan kandungan yang kaya akan fase ferit (C4AF). Semen ini mengungguli semen Portland dalam berbagai aspek, menawarkan pengaturan yang cepat, pengerasan yang cepat, pengeringan yang cepat, pengembangan kekuatan awal, ketahanan terhadap suhu tinggi, perubahan volume yang dapat dikontrol sebelum dan sesudah pengerasan, serta ketahanan terhadap asam lemah dan korosi asam sulfat yang bersumber dari biologis. Diterapkan secara luas dalam bahan bangunan kimia, beton berkinerja tinggi, teknik saluran air limbah dan pipa, pertambangan, bahan tahan api, dan industri lainnya.
| Itam | CA40 | CA41 | |||
|---|---|---|---|---|---|
| - | Standar | Kisaran tipikal | Standar | Kisaran tipikal | |
| Komposisi Kimia (%) | |||||
| Al2O3 | 37.0-41.0 | >37.0 | 43.0-48.0 | >43.0 | |
| CaO | 36.0-40.0 | <41.0 | 35.0-38.0 | <40.0 | |
| SiO2 | - | <6.0 | - | <7.0 | |
| Fe2O3 | 13.0-17.0 | <18.0 | 4.0-9.0 | <10.0 | |
| MgO | - | <1.5 | - | <1.5 | |
| TiO2 | - | <3.0 | - | <3.0 | |
| R2O | - | <0.5 | - | <0.5 | |
| S | - | <0.1 | - | <0.1 | |
| CL- | - | <0.06 | - | <0.06 | |
| Kemahiran | |||||
| +45μm (%) | - | <15.0 | - | <15.0 | |
| S (m2/kg) | 350-400 | >300 | 350-400 | >300 | |
| Waktu Pengaturan (menit) | |||||
| IS | 60-130 | >45 | 100-180 | >90 | |
| FS | 100-180 | <240 | 120-200 | <300 | |
| Kekuatan Lentur (MPa) | |||||
| 6h | - | >4.0 | - | >4.0 | |
| 1d | - | >5.0 | - | >6.0 | |
| 3d | - | >6.0 | - | >6.5 | |
| Kekuatan Tekan (MPa) | |||||
| 6h | - | >30 | - | - | |
| 1d | 50-55 | >50 | 55-60 | >55 | |
| 3d | 55-65 | >55 | 60-70 | >60 | |
| Kemampuan Kerja (Spreadafter 15 menit) (%) | - | >30 | - | >50 | |
| Refraktilitas (℃) | - | 1270℃ | - | 1310℃ | |
| Kepadatan massal (kg/m3) | - | 900-1000 | - | 900-1000 | |
| Berat jenis spesifik (g/cm3) | - | 2.9-3.1 | - | 2.9-3.1 | |
In addition, we also supply: CA50/CA70/CA80 Cement
1. Superior rapid hardening and early strength;
2. Excellent high-temperature resistance;
3. Outstanding wear resistance;
4. Unique resistance to weak acids and bio-sourced sulfuric acid erosion.
Ferric aluminate cement has diverse applications. Its excellent high – temperature resistance makes it ideal for high – temperature resistant engineering like blast furnace and kiln linings. Its rapid hardening and high early – strength suit emergency repair. It’s used in projects needing high corrosion resistance in salty or acidic areas. It also meets specific needs in special concretes, mortars, and is sometimes applied in decorative building materials for good workability and decorative effects.