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ProductThe product line covers a series of admixtures including rapid setting agents, water reducers, waterproofing agents, rust inhibitors, curing compounds, grouting materials and pressure grouting materials, as well as mortar admixtures.
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ApplicationThe products are widely used in concrete engineering projects across various sectors, including construction, highways, bridges, high-speed railways, power, water conservancy, ports, and tunnels.
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AboutThe leading supplier of innovative civil engineering materials in Guangxi, specializing in the R&D, production, and sales of concrete admixtures.
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TechnologyIt holds over ten patents and has participated in drafting more than ten standards, including the Technical Specification for Application of Polycarboxylate Superplasticizer (a national mandatory standard) and Solid Polycarboxylate Superplasticizer (T/CBMF187-2022).
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BlogFollow Keda news to stay up-to-date with the latest developments in real-time
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ContactCustomer satisfaction is our constant pursuit, and Keda wholeheartedly serves you
KD-JB Ultra Slump-Retaining High-Performance Water Reducer
KD-JB is a new-generation eco-friendly polycarboxylic ether polymer. Its unique molecular structure is specifically designed for concrete requiring long-duration or special-condition slump retention. Special functional groups control the adsorption intensity and rate in alkaline environments, gradually releasing water reduction through sustained-release action.
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Keda New Materials
Concrete Admixtures
Product Details
Technical Specifications
| Parameter | Value |
| Type | Polycarboxylic ether polymer |
| Function | Sustained-release slump retention |
| Compatibility | Compatible with standard PCE admixtures |
| Dosage | 15-25% of PCE active content |
Key Features
• Designed for long-duration or special-condition slump retention
• Does not affect concrete setting time
• Concrete remains soft, workable, no caking
• Sustained-release action does not compromise early strength
• True high-performance slump-retaining water reducer
Applications
• High-speed rail, passenger lines, buildings, roads, bridges, ports, airports
• Daily slump retention for commercial concrete
• Low initial slump long-duration retention (2h+)
• High-flowability concrete extended slump retention (3h+ without loss)
Usage & Precautions
• Use in combination with standard PCE admixtures. Adjust ratio based on slump requirements
• General slump improvement: 15-25% of PCE active content; higher for low-slump or ultra-long retention
• Determine optimal ratio through site-material trial testing
• Do not mix with naphthalene sulfonate. Test compatibility with other admixtures
• Curing: begin immediately after final set
Packaging & Storage
• Liquid product: packed in plastic drums or transported by tanker truck.
• Also available in powder form: packed in woven bags with inner plastic liners. Keep dry during storage and transport.
• Store away from direct sunlight at +5 to +35°C. Shelf life: 12 months.
Safety Information
• May cause irritation upon contact with eyes or skin.
• First Aid: A) Skin contact - rinse with clean water. B) Eye/mucosa contact - flush immediately with water and seek medical attention if discomfort persists. C) If swallowed - drink plenty of water, induce vomiting, and seek medical help.
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