Calcium Sulphate B-Anhydrite
Anhydrous Natural Calcium Sulphate for Calcium Sulphate Screeds and Self-Leveling Floor Systems
Calcium Sulphate B-Anhydrite is a natural anhydrite used as a calcium sulphate source for calcium sulphate screeds, anhydrite floor screeds, self-leveling and pumpable floor screeds, and CSA-based dry mix mortar formulation support.
Product Positioning
- Anhydrous natural calcium sulphate
- Self-leveling and floor screed systems
- CSA-based binder balance support
- Dry mix mortar formulation discussion
Product Overview
Quick answer: Calcium Sulphate B-Anhydrite is an anhydrous natural calcium sulphate used as the sulphate source and binder-balance component in self-leveling screeds, pumpable floor screeds and CSA-based dry mix mortar systems. In a CSA system the calcium sulphate supply regulates ettringite formation, setting and expansion, which makes its type and dosage a primary formulation lever. It is combined with binders, fillers, aggregates and additives; flow, setting behaviour, surface quality and strength should be verified by trial mix.
Calcium Sulphate B-Anhydrite is an anhydrous natural calcium sulphate product for binder balance and sulfate source discussion in self-leveling screeds, pumpable floor screeds and CSA-based dry mix mortar systems.
It should be evaluated together with CSA binder, cement, additives, fillers and aggregate system. Final performance depends on formulation design, raw materials, water amount, additives, curing condition and application method. As a natural anhydrite, this product acts as a controlled calcium sulphate source within the full binder system; any environmental claim requires product-specific verified life-cycle evidence.
Key Functions
Controlled sulfate-source selection
Sulfate source support
Binder balance adjustment
Self-leveling screed formulation approach
Pumpable floor screed support
Dry mix mortar system compatibility discussion
Trial-based formulation review
Typical Applications
Self-Leveling Compound
Pumpable Floor Screeds
Calcium Sulphate Screeds
CSA-Based Mortar Systems
Dry Mix Mortar Premix
Floor Leveling Products
Binder Balance Adjustment
Customized Mortar Formulation
Technical Specifications
Specification requirements from the latest Natural Anhydrous Calcium Sulphate TDS.
| Item | Specification Requirement |
|---|---|
| Product type | Natural anhydrous calcium sulphate |
| Anhydrous CaSO4 | ≥80.0% |
| SO3 | ≥50.0% |
| CaO | ≥37.0% |
| Crystalline water | ≤1.0% |
| Free moisture | ≤0.5% |
| Passing 200 mesh | ≥97.0% |
| Specific surface area | ≥400 m²/kg |
| Whiteness | ≥65% |
| pH | 7.0–8.0 |
Use as a sulphate source within a verified formulation. Dosage depends on cement composition, aluminate content, temperature and admixture compatibility; excessive sulphate may affect setting, expansion and long-term performance.
Directions for Use / Formulation Reminder
- Use as a sulfate source or binder balance component within a complete formulation system.
- Confirm compatibility with CSA Binder, CSA Cement, Portland cement, additives and local raw materials.
- Trial mix should verify flow retention, setting behavior, surface quality, strength target and shrinkage behavior.
- Control water amount, powder balance, aggregate grading and curing condition.
- Do not treat one dosage or binder balance as suitable for all floor systems.
Packaging and Storage
Packaging options can be discussed according to order quantity, shipping method and buyer handling requirements. Common options may include 25 kg bags and jumbo bags / bulk bags. Final packaging, palletizing, moisture protection, labeling and export documentation should be confirmed before order. Materials should be stored dry, covered and protected from moisture and rain.
Related Products
CSA Binder
View ProductCSA Cement
View ProductCSA Expansive Agent
View ProductDry Mix Mortar Premix
View ProductCustomized Mortar Solution
View SolutionRelated Solutions
Self-Leveling Compound Solution
View SolutionSetting Time Control Solution
View SolutionShrinkage Compensation Solution
View SolutionProduct-Specific Questions
Is Calcium Sulphate B-Anhydrite a finished binder?
No. It is a calcium-sulfate component used as a controlled sulfate source in compatible binder and dry-mix systems.
Can the same anhydrite dosage be used in every CSA system?
No. Required sulfate balance depends on the CSA component, OPC, other calcium-sulfate sources, additives, water demand and target performance. Confirm the level by laboratory testing.
Which information is needed for product selection?
Please provide the binder system, application, target setting and strength, available local raw materials, test method, packaging requirement and destination market.
Discuss Calcium Sulphate B-Anhydrite for Your Formula
Send us your application, target performance requirement, local raw materials, packaging requirement and destination market. We will suggest a suitable product path for sample discussion and testing.
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