KH-206 Slump Retention Polycarboxylate Superplasticizer Liquid
✓ Excellent Slump Retention Performance
✓ Reduced Slump Loss During Transportation
✓ Ideal for Ready-Mixed Concrete
✓ Stable Workability for Pumping and Placement
✓ Compatible with Fly Ash and Slag Systems
✓ 30% Water Reduction Rate
✓ ASTM C494 Type G, chloride-free liquid PCE admixture
Product Preview
KH-206 is a slump-retaining liquid polycarboxylate ether (PCE) superplasticiser developed for ready-mixed concrete and projects requiring extended workability.

While providing a reliable water reduction rate of approximately 30%, its primary advantage lies in maintaining concrete fluidity and consistency over time.
During transportation, pumping, and placement, concrete often experiences slump loss that reduces workability and increases the risk of on-site water addition. KH-206 helps reduce slump loss by maintaining effective dispersion of cement particles, allowing concrete to remain workable for longer periods without sacrificing strength development.
With excellent compatibility across various cement systems, fly ash, slag, and manufactured sand applications, KH-206 is particularly suitable for ready-mix concrete plants, infrastructure projects, and construction sites where stable slump retention is critical to production efficiency and concrete quality
Technical Data:
| KH-206 Main Specifications | ||||
| NO | Test Item | Criterion | Detection result | |
| 1 | Appearance and color | Colorless transparent or light yellow liquid | Colorless transparent or light yellow liquid | |
| 2 | Water reduction rate /% | ≥25 | 30 | |
| 3 | Solid content (%) | 30~50±1.0 | 40~50±1.0 | |
| 4 | Slurry fluidity (mm) | ≥220 | 230 | |
| 5 | Compressive strength ratio (%) | 1d | ≥170 | 178 |
| 3d | ≥160 | 163 | ||
| 7d | ≥150 | 155 | ||
| 28d | ≥140 | 142 | ||
| 6 | Gas content /% | ≤6.0 | 2.0 | |
| 7 | pH value (20℃) | 6~8 | 7.0 | |
| 8 | Density/(g/cm3) | 1.06~1.14 | 1.10 | |
| 9 | Reinforcement corrosion | The presence of corrosion hazards should be indicated | No | |
| 10 | validity | / | 6 months | |
| 11 | package | / | IBC ton barrel, 1000kg/ barrel | |
| 12 | store | / | Store in a dry and ventilated place, away from direct sunlight | |

Exceptional Slump Retention Performance
KH-206 is specifically developed for concrete applications requiring extended workability and stable slump retention. During transportation, pumping, and placement, conventional concrete often experiences rapid slump loss, which can negatively affect construction efficiency and concrete quality.
KH-206 helps maintain effective cement particle dispersion over time, significantly slowing slump loss and preserving concrete fluidity throughout the construction process.
With a water reduction rate of approximately 30%, KH-206 delivers an excellent balance between water reduction and workability retention, making it particularly suitable for ready-mix concrete production, long-distance transportation, and large-scale infrastructure projects.
Reliable Water Reduction and Strength Enhancement
By reducing the amount of mixing water while maintaining workability, KH-206 helps produce denser and stronger concrete. Lower water-cement ratios contribute to improved compressive strength, reduced permeability, and enhanced durability.
Performance testing shows compressive strength ratios reaching 178% at 1 day, 163% at 3 days, 155% at 7 days, and 142% at 28 days, supporting both early strength development and long-term structural performance.

Excellent Compatibility with Various Raw Materials
KH-206 demonstrates excellent adaptability across a wide range of cement systems and supplementary cementitious materials, including fly ash, slag, and manufactured sand.
Its optimised molecular structure helps maintain stable performance under varying raw material conditions, reducing the risk of unexpected workability fluctuations during production.
This versatility allows concrete producers to maintain consistent quality while optimising mix designs for different project requirements.
Improved Cohesion and Pumpability
The product exhibits strong adsorption performance toward aggregates containing fines, powder, and moderate clay content. This characteristic improves concrete cohesion, reduces segregation and bleeding, and enhances pumping performance during placement.
As a result, KH-206 helps ensure smoother construction operations and more consistent concrete quality in demanding jobsite conditions.
Enhanced Durability and Sustainability
By improving cement particle dispersion and reducing water demand, KH-206 contributes to a denser hardened concrete structure. Improved compactness helps reduce shrinkage, minimise cracking risk, and enhance long-term durability.
The product contains no harmful substances and supports environmentally responsible concrete production by reducing cement and water consumption while maintaining desired performance levels.
Ready-Mixed Concrete Production
Ready-mix concrete often requires extended transportation and waiting times before placement. KH-206 provides excellent slump retention, helping maintain stable workability throughout delivery and placement operations.
Its ability to reduce slump loss minimizes the need for on-site water addition, improving consistency, quality control, and overall construction efficiency.
Bridge and Infrastructure Projects
Large infrastructure projects such as bridges, highways, airports, tunnels, and municipal construction frequently require concrete with long working times and stable performance.
KH-206 helps maintain fluidity during pumping and placement while supporting strength development, making it suitable for complex infrastructure applications where construction reliability is critical.
High-Rise and Commercial Buildings
For large commercial buildings, residential developments, and high-rise structures, concrete may undergo extended pumping distances and complicated placement procedures.
KH-206 ensures stable workability during construction while helping achieve the strength and durability requirements necessary for modern building projects.
Precast and Special Concrete Applications
Precast concrete production requires consistent workability, dimensional accuracy, and reliable strength development. KH-206 improves concrete flowability while maintaining stability throughout mixing and casting operations.
The product is also suitable for various special concrete systems where both water reduction and slump retention are important performance requirements.
According to the product list, KH-206 is suitable for precast concrete, special concrete, industrial and civil buildings, roads, airports, and other engineering projects where both water reduction and workability retention are required.
What is the main advantage of KH-206?
KH-206 is designed for excellent slump retention while maintaining approximately 30% water reduction. It helps concrete remain workable for longer periods during transportation, pumping, and placement.
Is KH-206 suitable for ready-mix concrete?
Yes. KH-206 is specifically developed for ready-mix concrete and projects requiring extended workability. It helps reduce slump loss and improves consistency during transportation.
Can KH-206 be used with fly ash and slag?
Yes. KH-206 has good compatibility with fly ash, slag, and various cement systems. Trial mixes are recommended to determine the optimum dosage under local conditions.
What is the recommended dosage of KH-206?
The recommended dosage is 0.4%–1.0% of the cementitious materials. The exact dosage should be confirmed through laboratory and field testing.
Does KH-206 improve concrete strength?
Yes. By reducing water demand and improving particle dispersion, KH-206 helps enhance both early and long-term concrete strength while maintaining good workability.
Can you provide customized formulations?
Yes. We can adjust performance characteristics such as slump retention, water reduction, and cement adaptability according to project requirements.
KH-206 is supplied as a liquid polycarboxylate ether superplasticizer and is typically packaged in IBC containers (1000 kg per container) for convenient transportation, storage, and large-scale industrial use.
The product has a shelf life of 6 months when stored under recommended conditions.
Store in a dry and well-ventilated area away from direct sunlight, excessive heat, and freezing temperatures. Containers should remain tightly sealed when not in use to prevent contamination and maintain product stability.
Before large-scale application after extended storage, performance verification through trial testing is recommended.
Bulk packaging can also be arranged by Flexitank, with typical loading of 22-25MT/20ft depending on shipping arrangement.

KH-206 may be added directly together with mixing water during concrete production. It can also be diluted to a lower solid content before use when required by specific production processes.
The recommended dosage range is 0.4%–1.0% of the total cementitious materials, depending on the target workability, raw material characteristics, environmental conditions, and project requirements.
The optimum dosage should always be determined through laboratory and field trial mixes to ensure the desired balance of water reduction, slump retention, strength development, and overall concrete performance.
For More Information About Dosage
If you would like to learn more about recommended dosage ranges and practical application methods of superplasticizers, you may refer to the following articles:
- How Much Superplasticizer Should Be Added to Concrete? — A comprehensive guide covering dosage recommendations for different types of superplasticizers, influencing factors, and adjustment methods under various construction conditions.
- How to Add Superplasticizer to Concrete Correctly? — Learn the proper addition sequence, mixing procedures, and practical tips to maximize workability, slump retention, strength development, and overall concrete performance.
leave a message
If you are interested in our products and want to know more details, please leave a message here, we will reply you as soon as we can.
Need More Information?
Our technical team is ready to assist you with product selection, dosage recommendations, and custom formulations.









