BT-302 Polycarboxylate Superplasticizer
High Slump Retention Solid 50%
Product Introduction
BT-302 is a cutting-edge, fast-releasing polycarboxylate superplasticizer, exceptional in its ability to retain slump, derived as a mother liquor using TPEG through innovative free radical polymerization. A novel sustained-release group is ingeniously embedded into its synthesis,delivering unparalleled performance. In the alkaline environment of concrete, the slow-releasing group within this product's molecular structure gradually releases a dispersive agent, perpetually dispersing cement particles to effectively inhibit concrete slump loss,ensuring optimal performance. It showcases a minimal water reduction rate, yet excels with outstanding slump protection capabilities,ensuring long-lasting effects.Typically paired with a water-reducing mother liquor, this product excels in high-strength concrete applications demanding superior slump protection. It is extensively utilized in the production of pumping concrete, super-flow, self-compacting, and high-strength, high-performance concrete, as well as commercial concrete for high-speed railways, expressways, hydro-power stations, and other large-scale engineering projects.
Main Features
*The slow-release mother liquor acts faster than conventional PCE mother liquors,
with a typical release time post-30 minutes (variable with material type).
*Boasts exceptional slump performance, maintaining concrete slump for up to 2 hours without degradation.
*Its low water reduction rate suggests combined use with water-reducing mother liquor for optimal results.
*Low viscosity coupled with thixotropy makes it optimal for concrete formulations with a low 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 |
Applications
1. Perfect for early-strength concrete, retarded concrete, precast and cast-in-place concrete, flow and self-compacting concrete, mass concrete, high-performance and clear concrete, and all industrial and civil buildings using premix cast-in-place concrete, particularly for low-grade commercial concrete.
2. Extensively applicable to high-speed railways, nuclear power, water conservancy, hydropower projects, subways, large bridges, expressways, harbors, and wharves, as well as other significant national projects.
3. Ideal for various industrial and civil construction and commercial concrete mixing stations.
How to Use
1. This product is available as a colorless or light yellow liquid. Dosage: Generally, integrate 0-30% mother liquor with water-reducing mother liquor, incorporating other minor materials to create a water-reducing agent. The typical dosage of this agent is 1% ~ 3% of the total cementingmaterials' weight.formulation.
2.Prior to usage or when altering cement and gravel types or batch, conduct adaptability tests to determine the optimal proportion of water-reducing agent.
3.This product can be used as a stand-alone solution (though generally not recommended) or in combination with a water-reducing mother liquor, to achieve superior performance. Experience the enhanced capabilities of set retarding in your construction processes, delivering smoother workflows and superior concrete quality. Our specialized mother liquor is designed to significantly reduce concrete slump loss. It can be expertly compounded with functional aids, ensuring your construction projects achieve unparalleled consistency and durability. This allows you to create bespoke admixtures that feature retarder, early strength, antifreeze, and pumping functionalities, tailored to meet your specific construction needs.. To unlock the full potential of our product, application methods and conditions should be meticulously determined through rigorous testing and compounding technology..
4.This versatile product seamlessly integrates with other admixtures, including early strength agents, air entrainment agents, and retarders. A preliminary test is essential before usage. Note: Avoid mixing with naphthalene series water reducers for optimal results.
5.The precise combination of concrete cement and mix ratios should be meticulously determined through testing. During application, ensure that mixed and measured water are added simultaneously to the concrete mixer. Conducting a mixing test beforehand is crucial to uphold the impeccable quality of your concrete.
6.In scenarios where active admixtures such as fly ash and slag are used within the concrete ratio, it is essential to calculate the water-reducing agent based on the total amount of cementing materials to maintain optimal performance.
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