BT-302 Polycarboxylate Superplasticizer
High Slump Retention Solid 50%
Product Introduction
BT-302 is a cutting-edge, fast-releasing solution designed for optimal slump retention. This innovative mother liquor is crafted from TPEG using free radical polymerization. Ingeniously, a novel sustained-release group is integrated into its synthesis. In the alkaline environment of concrete, this product's slow-releasing group steadily unleashes a dispersive function, effectively dispersing cement and inhibiting slump loss for prolonged periods.It boasts a modest water reduction rate, yet excels in providing exceptional slump protection..Typically paired with a water-reducing mother liquor, BT-302 is primarily utilized in high-strength concrete applications where superior slump protection is a necessity. Widely embraced in pumping concrete, super-flow self-compacting, and high-strength high-performance concrete, it also serves commercial concrete requirements for high-speed railways, expressways, hydro-power, and other expansive engineering projects.
Main Feature
* The slow-release mother liquor outpaces traditional PCE mother liquor in release speed.
Release typically occurs post-30 minutes, although this varies by material.
* With extraordinary slump performance, concrete maintains its slump for up to 2 hours without degradation.
* Typically not used alone, due to low water reduction rate; it requires amalgamation with a water-reducing mother liquor.
* Boasting low viscosity and thixotropy, it is finely tuned for concrete 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 |
Application
1. Ideal for early strength concrete, retarded concrete, precast concrete, cast-in-place concrete, flow concrete, self-compacting concrete, mass concrete, high-performance concrete, and clear concrete. Perfect for industrial and civil premix cast-in-place concrete, particularly suited for low-grade commercial concrete.
2. Versatile across high-speed railways, nuclear and hydro-power projects, subways, large bridges, expressways, harbors, and wharves, this product fulfills the demands of national large and key projects.
3. Suitable for all industrial and civil construction projects, as well as commercial concrete mixing stations.
How to Use
1. This product is available as a colorless or light yellow liquid. Dosage Instructions: Typically, combine 0-30% mother liquor with a reducing water mother liquor, adding other minor components to concoct a water-reducing agent. The recommended dosage of the water-reducing agent is generally 1% - 3% of the total weight of cementing materials.
2.Prior to utilization or when altering cement and gravel types and batches, conduct an adaptability test to determine appropriate water-reducing agent proportions.
3.While this product can be used alone (though typically it is not advisable), The product exhibits versatile adaptability. It can be seamlessly combined with water-reducing mother liquor, providing a robust solution to optimize your concrete compositions. When paired with set retarding mother liquor, it effectively minimizes concrete slump loss, maintaining optimal fluidity over extended periods. Alternatively, it can be compounded with specialized functional aids to create a range of tailor-made admixtures that deliver retarder, early strength, antifreeze, and enhanced pumping functions, catering to specific construction needs.This ensures that your concrete mix achieves desired traits for any application. For best results, the application method and specific conditions should be determined through rigorous testing and advanced compounding technologies, ensuring peak performance.This meticulous approach guarantees optimal outcomes.
4.This innovative product is compatible with various admixtures such as early strength agents, air entrainment agents, and retarders. It is crucial to conduct pre-use testing. Avoid mixing with naphthalene series water reducers to maintain product integrity.
5.Concrete cement and mix ratios should be validated through testing. When using, integrate mixed and measured water simultaneously with the concrete mixer. Pre-use mixing tests are essential to assure the highest quality of concreteoutput.
6.When integrating active admixtures like fly ash and slag, calculate the water-reducing agent based on the total cementing materials to achieve precise formulation.
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