Description
VF1000 is a powder-based slump-retaining agent designed for dry-mix mortars. It is primarily used to prevent flowability loss in dry-mix mortars over a period of 0.5 to 3 hours, addressing rapid flowability loss caused by poor cement adaptability or high clay and fine powder content in aggregates. VF-1000 stabilizes mortar fluidity and ensures the product maintains excellent workability over an extended duration.
Uses
A general-purpose powder slump-retaining agent that can be widely applied in mortar and concrete systems. Specific applications include:
• Grout and pressure grouting materials (agents).
• Self-leveling mortar.
• Repair mortar.
• Ultra-High Performance Concrete (UHPC).
Characteristics / Advantages
• Provides essentially no initial water reduction and does not increase the initial fluidity of the mortar.
• Water-reducing performance develops gradually after 0.5 hours. By increasing the dosage of the slump-retaining agent, mortar fluidity will increase over time.
• Highly resistant to rapid flowability loss caused by clay/stone powder content and ambient temperatures.
• The use of this product allows for an appropriate reduction in the dosage of superplasticizers.
• Enables mortar to maintain excellent workability over a long period.
• Excellent adaptability, allowing for simultaneous use with other additives in mortar production.
Product Information
| Parameter | Specification |
|---|---|
| Appearance | White to light yellow powder |
| Bulk Density (22°C)(kg/m³) | 600 ± 100 |
| pH Value (22°C) | 7.0 ~ 9.0 |
| Solid Content (%) | 97.0 ± 2.0 |
Application Information
Recommended Dosage:
0.01% to 0.1% of the weight of the cementitious material.
Grout Fluidity Test
PO42.5 cement, quartz sand, VF570 Polycarboxylate Superplasticizer, VF-1000 Powder Slump-Retaining Agent.
Test Results (Mortar Fluidity in mm):
| VF570 Powder Superplasticizer | VF-1000 Slump-Retaining Agent | Initial | 0.5h | 1h | 2h | 3h |
|---|---|---|---|---|---|---|
| 0.12% | – | 310 | 275 | 230 | – | – |
| 0.11% | 0.03% | 310 | 305 | 295 | 280 | 260 |
Conclusion
Test results indicate that cement-based grouts incorporated with VF-1000 maintain their initial fluidity.
Water-reducing performance begins to develop gradually after 0.5 hours, and the sustained-release
dispersion effect continues for up to 3 hours.
Legal Notes
The information provided in this document is given in good faith based on our current knowledge and experience of the product when properly stored, handled, and applied under normal conditions. In practice, the differences in materials, substrates, and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product must test the product’s suitability for the intended application and purpose. We reserve the right to change the properties of our products. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request.
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