YINSHAN 42.5 Rapid hardening CSA Cement sulphoaluminate cement
Application
White CSA cement is a special Calcium Sulfo Aluminate cement (CSA) designed for decorative concrete, terrazzo, flooring, glass fiber reinforced concrete (GFRC), dry-mixed mortars, non-shrink grout architectural precast, fiber cement and more. Specially selected high purity raw materials, optimized calcination and carefully monitored grinding guarantee a consistent white color.
Certified Product Manufactured under GB/T 19001-2008 IDT ISO9001:2008 Quality Management System.
Specification
| Chemical parameter analysis | |||
| SiO2 | 7.81 | ||
| Al2O3 | 37.31 | ||
| Fe2O3 | 0.14 | ||
| CaO | 40.78 | ||
| MgO | 0.37 | ||
| SO3 | 11.89 | ||
| f-CaO | 0.07% | ||
| Loss | 0.29 | ||
| Physical parameter analysis | |||
| Blaine finenes（cm2/g） | 4500 | ||
| Setting time（min） | Initial (min）≥ | 15 | Based on customer request |
| Final≤ | 120 | ||
| Compress strength（Mpa） | 6h | 25 | |
| 1d | 55 | ||
| 3d | 65 | ||
| 28d | 72 | ||
| Flexural strength（Mpa） | 6h | 6.0 | |
| 1d | 9.0 | ||
| 3d | 10.0 | ||
| 28d | 11.0 | ||
| Whiteness (hunter) | Over 91% | ||
Benefits
1. Fast setting, Rapid hardening, high strength; 4h compressive strength can reach 15 Mpa, 43 Mpa after 28d,suitable to make the high strength products.
2. Micro expansion, low dry shrinkage, the length change is very small. Dry shrinkage rate is just 1/10 of Portlandcement.
3. Have very good anti-corrosion property in sulfate, chloride, magnesium salt and seawater. Corrosion resis.
tance coefficient >1.
4. High impermeability, permeation height is 1/5 of Portland cement.
5. High frozen resistance property, can get the strength of critical intensity of cold in 2h~3h.
6. Low hydration heat release
7. PH value is under 10.0 for GRC products.
9. Whiskering resistant performance is good10. Can be mixed with Portland cement in a proper ratio, can greatly reduce the shrinkage of Portland cement,reduce the cracks.
Suitable projects include
1.GRC
2.Decoratlon mortar
3. lnterior and exterior wall putty4. indoor and outdoor fioer
5. Cement-based self-leveling mortar
6. Artificial stone and floor
7. Thin layer of concrete repair and concrete leveling material
8.Anti-cracking rending mortar
9. Exterior insulation rendering mortar, bonding mortar and tile adhesive
10.Decorative concrete
11.Prefabricated concrete
12.Building reinforcement
13. High early strength Non-shrinkage grouts
14.Waterproof and plugging material
Zero to Low Shrinkage
CSA cement achieves higher early strength than portlandcement allowing for the formulation of non-shrink and low-shrinkage concrete and mortar products. CSA cement utilizes nearly 100% of the mix water during hydration process, leaving very little water to contribute towards shrinkage. Hydration temperature is considerable lower than comparable quick setting systems .Additionally, because of high early strength development, little or no shrinkage occurs after initial set.
