BT-302 Polycarboxylate Superplasticizer
High Slump Retention Solid 50%
Product Introduction
BT-302 is a cutting-edge, fast-releasing, and exceptional slump-retaining mother liquor crafted from TPEG utilizing free radical polymerization. A novel sustained-release group is ingeniously incorporated into the synthesis. In the alkaline milieu of concrete, the slow-releasing group within the molecular structure of this product gently releases the dispersive function group, effectively continuing to disperse the cement. This unique mechanism inhibits concrete slump loss. It exhibits a modest water reduction rate, yet excels with extraordinary slump protection performance.Typically combined with water-reducing mother liquor, it is primarily utilized in high-strength concrete where superior slump protection is essential. Its versatility spans a wide range of applications, including pumping concrete, super-flow self-compacting, high-strength high-performance concrete, and commercial concrete for monumental projects such as high-speed railways, expressways, and hydraulic power developments.
Main Features
*The innovative slow-release mother liquor contrasts with faster release PCE mother liquor.
Release time generally occurs after 30 minutes, adaptable to varying material conditions.
*Exhibits superlative slump performance, maintaining concrete slump for 2 hours without degradation.
*Due to its low water reduction rate, it's typically not used alone but rather in conjunction with water-reducing mother liquor.
*Boasts low viscosity and thixotropy, making it ideal for concrete with low water-cement ratios.
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. Suited for the formulation of early-strength, retarded, precast, cast-in-place, flow, self-compacting, mass, high-performance, and clear concrete, as well as premix cast-in-place concrete for diverse industrial and civil infrastructures, particularly beneficial for lower-grade commercial concrete.
2. Perfectly applicable to high-speed railways, nuclear power, water conservancy, hydroelectric projects, subways, grand bridges, expressways, harbors, and wharves, including other significant national projects.
3. Suitable for a wide array of industrial, civil construction, and commercial concrete mixing stations.
How to Use
1. This product is available as a colorless or light yellow liquid. Dosage: Typically, use a range of 0-30% mother liquor with a water-reducing mother liquor, and incorporate other minor materials to create a water-reducing agent. The agent's dosage generally constitutes 1% ~ 3% of the cementing material's total weight.
2.Prior to using this product, or when altering the type and batch of cement and gravel, conducting an adaptability test is essential. This test allows for the precise formulation of the water-reducing agent's proportions.
3.This product can be used singularly (though it's usually not advisable to use it alone). It can be effectively combined with water-reducing mother liquor and set-retarding agents for optimal performance. Experience the ultimate in concrete consistency with our mother liquor, specifically formulated to significantly reduce concrete slump loss. This premium ingredient can be seamlessly compounded with functional aids, enhancing the versatility of your construction projects. Unlock the potential of your construction efforts by creating admixtures that boast retarder, early strength, antifreeze, and pumping functionalities, ensuring optimal performance in varying conditions.. The ideal application method and conditions for this product are best determined through tailored testing and advanced compounding technology, ensuring precision and reliability..
4.This versatile product is designed to be used in harmony with other admixtures such as early strength agents, air entrainment agents, and retarders. It is imperative to conduct thorough testing prior to use. Please refrain from mixing with naphthalene series water reducers to ensure effectiveness.
5.For optimal results, the concrete cement and mix ratio should be meticulously determined through testing. During usage, the mixture should be combined with measured water or added to the concrete mixer simultaneously. Prior to full-scale application, conduct a mixing test to maintain the superior quality of your concrete.e
6.When utilizing active admixtures such as fly ash and slag within your concrete ratio, it is essential to calculate the water-reducing agent based on the total cementing materials to achieve optimal results.
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