BT-302 Polycarboxylate Superplasticizer
Remarkable High Slump Retention Solid at 50% Concentration
Exquisite Product Introduction
BT-302 represents a cutting-edge evolution in fast-releasing and exceptional slump retaining mother liquor, meticulously crafted from TPEG via advanced free radical polymerization, incorporating a novel sustained-release group to enhance its synthesis. In the alkaline environment of concrete, the slow-releasing group in this product's molecular structure gradually liberates the dispersive function group, ensuring continuous dispersion of the cement, effectively preventing concrete slump loss. It boasts a relatively low water reduction rate, yet it excels with extraordinarily high slump protection performance.Typically paired with a water-reducing mother liquor, it is optimally utilized in high-strength concrete applications demanding superior slump protection, with widespread usage across pumping concrete, ultra-flow self-compacting, high-strength high-performance concrete, and commercial concrete for high-speed railways, expressways, hydro-power, and other expansive engineering ventures.
Distinguished Main Feature
*The innovative slow-release mother liquor outpaces traditional PCE mother liquor in release efficiency.
Release generally occurs post 30 minutes (variability dependent on material specifics).
*Exhibiting superlative slump performance, the product maintains concrete slump for 2 hours without loss.
*Characterized by a low water reduction rate, it is typically not used independently but in conjunction with a water reduction mother liquor.
*Possessing low viscosity and thixotropy, it is optimally suited for concrete with a low water-cement ratio.
Defining 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 |
Concrete's Physical Properties
| 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 |
Expansive Application
1. Suitable for configuring early-strength concrete, retarded concrete, precast concrete, cast-in-place concrete, flow concrete, self-compacting concrete, mass concrete, high-performance concrete, and clear concrete. Ideally suited for premix cast-in-place concrete in various industrial and civil buildings, with particular efficacy in low-grade commercial concrete.
2. Extensively applicable in large-scale national and key infrastructure projects such as high-speed railways, nuclear power, water conservancy, hydro-power projects, subways, large bridges, expressways, and harbors.
3. Ideal for diverse industrial, civil construction, and commercial concrete mixing stations.
Comprehensive Usage Instructions
1. This product is offered as a colorless or light yellow liquid. Dosage: Commonly use0-30% mother liquor with a water-reducing mother liquor, blended with other smaller materials to create an effective water-reducing agent. The typical dosage of this agent ranges from 1% to 3% of the total cementing materials' weight.
2.Prior to this product's application or when altering cement and gravel types and batches, performing an adaptability test with these materials is crucial. The test results guide the formulation of the water-reducing agent's proportion.
3.While this product can be used independently (though it is generally not recommended for solo use), its performance is optimized when combined with complementary agents. Expertly formulated, this product can be seamlessly combined with water-reducing mother liquor to unlock optimum performance. This includes set retarding features, offering you versatility in concrete applications. Additionally, it can be compounded with a mother liquor to effectively combat concrete slump loss. Enhance it further by compounding with functional aids. Craft admixtures with diverse functions such as retarder, early strength, antifreeze, and enhanced pumping capabilities.Transform your concrete formulations with ease. Crucially, the application method and conditions should be tailored through rigorous testing and advanced compounding technology.Ensure optimal results tailored to your specific needs.
4.This exceptional product can be synergistically used with various admixtures, including early strength agents, air entrainment agents, and retarders. Prior testing is essential. Avoid mixing with naphthalene series water reducers.
5.The concrete cement composition and mix ratio need careful determination through testing. During use, ensure the mixed and measured water is simultaneously added to the concrete mixer. Conduct mixing tests to guarantee superior concrete quality.e
6.In scenarios where active admixtures like fly ash and slag are part of the concrete mix, calculate the water-reducing agent based on the total cementing material volume.
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