CSA Binder
Calcium Sulphoaluminate Ground Clinker for High-Performance Cementitious Systems
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CSA Expansive Agent
Service Hotline：+86 15617626826
Consult NowCSA Binder, also referred to as CSA Ground Clinker, is a calcium sulphoaluminate-based hydraulic binder specifically designed for the formulation of rapid-setting, shrinkage-compensated, and durability-enhanced cementitious systems. It is produced through the controlled sintering and fine grinding of a ye’elimite-rich clinker phase, ensuring consistent performance in both standalone and blended applications.
This binder offers a reliable solution for modern construction demands where time-sensitive performance, dimensional stability, and chemical durability are critical. It is highly compatible with a wide range of supplementary cementitious materials (SCMs), chemical admixtures, and fillers, making it an ideal component in customized formulations for various high-performance systems.
Key Technical Advantages
● Rapid Setting Characteristics
Enables accelerated construction cycles, early formwork removal, and reduced downtime in critical-path projects.
● Shrinkage Compensation
Promotes volumetric stability through the formation of expansive ettringite phases, effectively mitigating drying shrinkage and reducing cracking potential.
● Enhanced Durability
Exhibits high resistance to sulfate attack, chloride ingress, and freeze-thaw damage, contributing to long-term material performance in aggressive environments.
● Improved Compatibility
Features a lower pore solution alkalinity compared to conventional OPC, reducing the risk of alkali-silica reaction (ASR) and expanding the range of usable aggregates.
● Low Carbon Profile
Manufactured at relatively lower calcination temperatures and without limestone decarbonation, CSA Binder offers a significantly reduced environmental footprint, making it suitable for sustainable construction practices.
● Formulation Versatility
Performs effectively as either a principal binder or as a functional component in hybrid systems containing OPC, slag, fly ash, or other SCMs.
(1) Data of CSA Binder
Chemical Analysis
Main constituents (%)
| Component | Typel | Typell | Type Ill |
| SiO2 | ≤7.0 | ≤8.5 | ≤10.5 |
| AI2O3 | ≥36 | ≥35 | ≥33 |
| Fe2O3 | 1.5-2.5 | 1.5-3.5 | 1.5-3.5 |
| CaO | 40.0-41.5 | 40.5-42.5 | 41.5-43.5 |
| MgO | ≤3.5 | ≤3.5 | ≤3.5 |
| SO3 | 8.5-11.0 | 8.0-10.5 | 7.5-9.5 |
| TiO2 | 1.0-2.0 | 1.0-2.0 | 1.0-2.0 |
(2) Hydraulic Properties
| ltem | Typel | Typell | TypeIll | |
| Bending Strength (Mpa) |
1d | ≥8.0 | ≥7.0 | ≥6.0 |
| 3d | ≥10.0 | ≥9.0 | ≥8.0 | |
| 7d | ≥11.0 | ≥10.0 | ≥9.0 | |
| Compressive strength (Mpa) |
1d | ≥60.0 | ≥50.0 | ≥50.0 |
| 3d | ≥85.0 | ≥75.0 | ≥65.0 | |
| 7d | ≥95.0 | ≥85.0 | ≥75.0 | |
| Setting time | Initial | ≥25min | ≥25min | ≥25min |
| Final | ≤300min | ≤300min | ≤300min | |
Typical Applications
● Self-Leveling Floor Compounds
Provides rapid hardening and dimensional stability for industrial and commercial floor systems.
● Rapid-Repair Mortars
Suitable for structural and surface repairs in roadways, bridges, tunnels, and industrial infrastructure.
● Non-Shrink Grouts
Ideal for anchoring equipment, baseplates, and precision installations requiring dimensional accuracy and load stability.
● Precast Concrete Elements
Enhances production efficiency by enabling early demolding and high early strength gain.
● Blended Cement Formulations
Supports the development of low-carbon, performance-driven cement systems for diverse construction needs.
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