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VF1000 – Slump Retaining Agent (Powder)

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VF1000 – Slump Retaining Agent (Powder)

VF1000 is a powder-based slump-retaining agent designed for dry-mix mortars and cement-based systems where stable workability is essential. It is primarily used to prevent flowability loss over a period of 0.5 to 3 hours, especially in mixes affected by poor cement adaptability, high clay content, or excessive fine powder in aggregates. By helping stabilize mortar fluidity, VF1000 supports longer working time, better placement performance, and more consistent results for manufacturers and project teams sourcing construction chemical supplies and chemical admixtures for concrete.

Uses

VF1000 Slump Retaining Agent Powder is a general-purpose powder slump-retaining agent that can be widely applied in mortar and concrete systems where extended workability is required. Typical applications include:
  • Grout and pressure grouting materials
  • Self-leveling mortar
  • Repair mortar
  • Ultra-High Performance Concrete (UHPC)
Characteristics / Advantages VF1000 is developed to improve workability retention without disturbing the initial mix performance. Its main advantages include:
  • 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 can increase over time.
  • Highly resistant to rapid flowability loss caused by clay, stone powder, and high ambient temperatures.
  • Can help reduce the dosage of superplasticizers where appropriate.
  • Supports excellent workability over a longer period.
  • Offers strong adaptability and can be used together with other additives in mortar production.

Product Information of VF1000 Slump Retaining Agent Powder

Parameter Specification
Appearance White to light yellow powder
Bulk Density (22°C) 600 ± 100 kg/m³
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. For best results, the final dosage should be confirmed through lab testing based on cement type, aggregate quality, ambient temperature, required open time, and the target performance of the finished mortar or concrete system.

Grout Fluidity Test

Test materials: PO42.5 cement, quartz sand, VF570 Polycarboxylate Superplasticizer, and VF-1000 Powder Slump-Retaining Agent.
Mix VF570 Powder Superplasticizer VF-1000 Slump-Retaining Agent Initial 0.5h 1h 2h 3h
Control 0.12% – 310 275 230 – –
VF1000 Added 0.11% 0.03% 310 305 295 280 260

Conclusion

Test results show that cement-based grouts incorporated with VF1000 Slump Retaining Agent Powder maintain their initial fluidity more effectively than the control mix. Water-reducing performance begins to develop gradually after 0.5 hours, and the sustained-release dispersion effect continues for up to 3 hours. This makes VF1000 a practical solution for buyers comparing chemical admixtures’ concrete performance, especially where workability retention is critical in hot weather, long transport times, or difficult jobsite conditions.

Legal Notes

The information provided in this document is supplied in good faith based on current knowledge, product experience, and normal conditions of storage, handling, and application. However, because materials, substrates, and site conditions can vary significantly, no warranty of merchantability or fitness for a particular purpose is implied. No liability arising from this information, written recommendations, or other advice can be assumed. Users are responsible for testing the suitability of the product for the intended application and use. We reserve the right to modify product properties as part of ongoing development and quality improvement. All orders are subject to the current terms of sale and delivery. For the most up-to-date information, please refer to the latest local Product Data Sheet, available on request.

FAQs

What is VF1000 slump retaining agent powder used for?

VF1000 is used to maintain workability and reduce slump loss in dry-mix mortars and cement-based systems.

How does VF1000 improve mortar performance?

It helps preserve fluidity over time, especially in mixes affected by clay, fine powder, high temperature, or poor cement compatibility.

Can VF1000 be used in UHPC and repair mortar?

Yes, it is suitable for grout, self-leveling mortar, repair mortar, and UHPC applications.

What is the recommended dosage of VF1000?

The recommended dosage is 0.01% to 0.1% of the weight of the cementitious material.

Does VF1000 replace a superplasticizer?

No, but it may help reduce the required dosage of superplasticizer in some formulations.

Can VF1000 be used with other mortar additives?

Yes, it has good adaptability and can be used together with other additives in mortar production.

Related Products

VF-24 Concrete Anticorrosion Inhibitor

VF860P – Polycarboxylate Superplasticizer Powder

VF560 – Polycarboxylate Superplasticizer Powder

Flexible Payment & Global Delivery Solutions

Backed by large-scale production capacity and strong technical strength, Sichuan Lujia Sitong Technology Development Co., Ltd. ensures stable supply and efficient delivery to customers worldwide.

We support multiple international trade terms and flexible payment methods to meet diverse procurement needs.

Payment Options:

T/T, L/C, OA, and other negotiated methods

Shipping Coverage:

Worldwide

Transportation Terms:

Sea freight by CIF, FOB, CFR, and other Incoterms

Lead Time:

7–14 days depending on order volume and specifications

Packaging:

• 25kg moisture-proof bags • 500kg / 600kg palletized packaging • Customized packaging available

Minimum Order Quantity (MOQ):

500kg

What Is a Concrete Admixture
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Flexible Payment & Global Delivery Solutions

Request Your Free Product Sample

To help you better evaluate our product quality and performance, we are pleased to offer free samples of our construction chemical solutions. Experience real results before placing bulk orders — with worldwide delivery available.

What You Will Receive:

✔ Product Technical Data Sheet (TDS) & brochure
✔ 200–600g sample (depending on product type)
✔ Fast global shipping via DHL or FedEx
✔ Technical consultation & formulation support
✔ Zero sample cost (shipping may vary by region)

Why Try Our Samples?

• Verify performance in real applications
• Test compatibility with your materials
• Reduce procurement risk
• Get expert technical guidance

Request Your Free Product Sample
Frequently Asked Questions
1. What are concrete admixtures used for?

Concrete admixtures are added to concrete mixes to improve performance such as strength, workability, waterproofing, durability, setting time, and crack resistance. They help achieve better construction quality and efficiency under different project conditions.

Yes. Our products are compatible with most types of cement, aggregates, and conventional concrete mix designs. Technical support is available to ensure optimal performance for your specific application.
Yes. Each product is supplied with a detailed Technical Data Sheet including dosage, application guidelines, storage conditions, and safety information.
Absolutely. We offer free product samples for testing and evaluation. Samples are typically 200–600g depending on the product type.
Dosage varies depending on the product and application, usually ranging from 0.5% to 2% by cement weight. Exact recommendations are provided in the product TDS.
Yes. Our technical team can adjust formulations based on your project requirements, climate conditions, and performance goals.
Standard packaging is 25kg bags, with palletized options (500kg–600kg) and customized packaging available upon request.
Most products have a shelf life of 12 months when stored in a dry, cool, and sealed environment.
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