Product Name: ZK-7E Polycarboxylate Slump Retention Agent (Mother Liquid)
Brand: Zoncore
Type: Polycarboxylate Slump-Retaining Agent
1. Product Overview & Material Composition
The ZK-7E is a high-performance chemical admixture specifically engineered for concrete applications. Chemical Composition: It is synthesized via free-radical copolymerization technology. The primary raw materials include C6 polyether macromonomers and hydroxypropyl esters. It is designed with “time-controlled release technology,” which enables the sustained release of active components through ester hydrolysis, ensuring that the concrete’s slump value remains essentially unchanged for up to 3h. ZK-7E offers a critical solution for long-distance concrete transportation and projects requiring extended placement times, ensuring the concrete arrives at the site ready to pour without losing its strength or dimensional stability.
Physical State: Colorless, transparent liquid.
Key Technology: It utilizes "time-controlled release technology," which allows for the sustained release of active components through ester hydrolysis.
2. Key Features & Functions
The primary function of this agent is to maintain the workability (slump) of concrete over extended periods without adverse side effects.
Ultra-Long Slump Retention: Designed to keep the concrete's slump value essentially unchanged for up to 3 hours (180 minutes).
Stable Performance: It typically reaches its peak slump-retention capacity around 90 minutes. After the retention effect is released, the concrete slump remains stable without abrupt changes.
Reduced Shrinkage: Significantly reduces concrete shrinkage, improving the volume stability and durability of the final structure.
Compatibility: Specifically designed to be used in combination with polycarboxylate-based high-performance water reducers.
3. Technical Specifications
The following table summarizes the standard requirements and test results for concrete containing ZK-7E:
4. Application Scenarios
This product is suitable for concrete projects requiring ultra-long slump retention and long-distance transportation, including:
Commercial Concrete Projects
High-Speed Railways
Expressways
Nuclear Power Plants
Water Control Hubs
5. Packaging & Storage
Packaging Options:
Plastic drums
IBC Totes: 1000L.
Tank Trucks: For bulk transportation.
Storage Conditions:
Shelf Life: Max. 6 months
Precautions: Seal tightly, avoid direct sunlight, and protect from freezing.
Corrosion Warning: It has a slight corrosive effect on iron containers. Prolonged storage in iron containers will cause the contents to turn pale reddish-brown. It is non-toxic, has a mild acidic odor, and is non-flammable.
6. Important Precautions
Do not mix with naphthalene sulfonate water reducers, melamine-based water reducers, or aliphatic water reducers.
Dosage: The typical blending ratio is below 40%. Excessive addition may lead to an increase in concrete slump and even cause concrete segregation.
Enhanced Effect: When used in combination with polycarboxylate high-performance water reducers and Type I polycarboxylate slump-retaining agents, the effect is even more pronounced.
7. MOQ: 5 tons
产品优势：
1. Ultra-Long Slump Retention (Extended Workability)
Time-Controlled Release: Utilizes a proprietary "time-controlled release technology" based on ester hydrolysis. This allows the agent to release its active components gradually over time.
3-Hour Stability: It is designed to keep the concrete's slump value essentially unchanged for up to 3 hours (180 minutes).
No Sudden Drop: The slump retention effect typically peaks around 90 minutes. After this period, the concrete slump remains stable without abrupt changes or sudden loss of fluidity, allowing for a longer and more reliable placement window.
2. Excellent Compatibility & Synergy
Complementary Action: It is specifically designed to be used in combination with polycarboxylate-based high-performance water reducers.
Enhanced Effect: When used in combination with Type I polycarboxylate slump-retaining agents and either Type II or Type III polycarboxylate slump-retaining agents, the synergistic effect is even more pronounced, allowing for fine-tuned control over the concrete's rheology.
3. Improved Durability & Dimensional Stability
Reduced Shrinkage: Significantly reduces concrete shrinkage. The documentation indicates a 28-day shrinkage rate of only 109% (vs. a standard requirement of ≤120%), improving the volume stability of the structure and reducing the risk of cracking.
Strength Retention: While maintaining slump, it does not compromise on strength. The 28-day compressive strength ratio reaches 108%, ensuring the structural integrity of the concrete remains high.
4. Stable Setting Time
Controlled Setting: It provides a moderate retarding effect. The initial setting time difference is +20 minutes, ensuring the concrete does not set too quickly during long hauls but also does not delay the overall construction schedule significantly.
This is only for reference but does not claim to be complete and is without any obligation. Please advance to test its applicability.