Product Introduction: BT-302 Polycarboxylate Superplasticizer
High Slump Retention Solid 50%
Product Introduction
BT-302 stands as a groundbreaking advancement in fast-releasing technology, ensuring superior slump retention in its mother liquor formulation, crafted from TPEG through innovative free radical polymerization. The synthesis incorporates a novel sustained-release group. In the alkaline environment of concrete, this product's slow-releasing group within the molecular structure gradually liberates a dispersive agent, continuously dispersing cement to effectively prevent slump loss.This product features a relatively low water reduction rate, yet excels with exceptional slump protection capabilities..Commonly paired with a water reducing mother liquor, this product is ideally suited for high-strength concrete demanding superior slump retention. Its efficacy extends across pumping concrete, super-flow self-compacting, and high-strength high-performance concrete. It is widely utilized in commercial concrete for mega-constructions like high-speed railways, expressways, and hydropower projects, and other extensive engineering undertakings.
Main Features
*The slow-release mother liquor offers swifter release compared to conventional PCE mother liquor.
A typical release begins around 30 minutes in, although variations may occur based on material characteristics.
*Boasting ultra-high slump performance, it maintains concrete slump integrity for up to 2 hours.
*Due to a low water reduction rate, it is generally not used in isolation but combined with a water reduction mother liquor.
*With its low viscosity and thixotropic nature, it's particularly suited for concrete with a reduced water-cement ratio.
Typical Characteristics
| Test Item |
Specification |
| Appearance |
Colorless or light yellow liquid |
| Density(g*cm3) |
1.02-1.05 |
| PH Value |
6-8 |
| Solid Contents |
50%±1 |
| Cement slurry fluidity MM |
270mm per Hour |
Physical Properties of Concrete
| Test item |
Specification |
| Water reducing Rate |
5% |
| bleeding rate ratio |
0% |
| Pressure bleeding rate |
30% |
| Air Content |
3% |
| (30min)Slump retention mm |
200mm |
| (60min)Slump retention |
170mm |
| 3D Compressive strength ratio |
190MPa |
| 7D Compressive strength ratio |
170MPa |
| 28D Compressive strength ratio |
150Mpa |
Application
1. Ideal for early strength concrete, retarded, precast, and cast-in-place concrete, among others. It suits industrial and civil buildings' premix cast-in-place concrete, excelling especially in lower-grade commercial concrete applications.
2. Its versatility makes it perfect for high-speed railways, nuclear power, water conservancy, hydro-power projects, subways, large bridges, expressways, harbors, and wharves, as well as other significant national projects.
3. Suitable for diverse industrial, civil construction, and commercial concrete mixing stations.
How to Use
1. Presented as a colorless or light yellow liquid. Dosage: Typically, use 0-30% mother liquor combined with a reducing water mother liquor. Incorporate other minor components to create a water-reducing agent. This agent is generally used at 1% to 3% of the total weight of cementing materials.
2.Before employing this product or altering cement and gravel types or batches, conduct an adaptability test. The test results guide the formulation of the water-reducing agent.
3.This product can be utilized independently (though generally not recommended) and is optimally combined with a water-reducing mother liquor for enhanced performance. Set Retarding: Achieve optimal workability with our specially formulated set retarding agents that ensure precise timing for concrete setting. Mother Liquor: A groundbreaking solution to minimize concrete slump loss effectively. This foundational component is perfect for use on its own or can be expertly compounded with various functional aids: Enhance your concrete mix by integrating multifunctional aids that elevate your product's performance to unmatched standards. Innovative Admixtures: By utilizing our advanced aids, you can craft admixtures that boast retarder, early strength, antifreeze, and efficient pumping functions, catering to diverse construction needs.. Application Methodology: To unlock the full potential of our product, conduct comprehensive testing and apply sophisticated compounding technology for optimal results..
4.Versatile Usage: This product harmoniously complements a variety of admixtures, including early strength agents, air entrainment agents, and retarders. Ensure thorough testing before application. Important: Avoid mixing with naphthalene series water reducers to maintain product integrity.
5.Concrete Mix Design: Experimentation is key. Determine the ideal cement and mix ratio through rigorous testing. For best results, simultaneously add the mixed and measured water to the concrete mixer. Conduct mixing tests beforehand to maintain superior concrete quality. e
6.Active Admixtures Alert: When incorporating active admixtures like fly ash and slag, calculate the water-reducing agent based on the total cementitious materials to ensure optimal performance.
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