BT-302 Polycarboxylate Superplasticizer
High Slump Retention Solid 50%
Product Introduction
BT-302 is a cutting-edge, fast-releasing, and slump retaining mother liquor crafted from TPEG via free radical polymerization. A novel sustained-release group is incorporated into the synthesis,ensuring superior performance. Under the alkaline conditions prevalent in concrete, the slow-releasing group within this product's molecular structure gradually unveils dispersive functionalities, continuously dispersing cement to effectively curb concrete slump loss.It exhibits a low water reduction rate, yet boasts exceptional slump protection capabilitiesideal for diverse applications.Typically used in conjunction with water-reducing mother liquor, it's predominantly utilized in high-strength concrete where slump protection is paramount. Its applications span pumping concrete, super-flow self-compacting, and high-strength high-performance concrete, as well as commercial concrete for high-speed railways, expressways, and hydro-power, among other large-scale engineering endeavors.
Main Features
*The slow-release mother liquor surpasses the faster release PCE mother liquor.
Typically, release occurs after 30 minutes, though this can vary based on materials.
*Exhibits remarkable slump performance, maintaining concrete slump for 2 hours without loss.
*The low water reduction rate suggests it is generally used in combination with water-reducing mother liquor.
*Boasts low viscosity and thixotropic properties, 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. Perfect for early strength, retarded, precast, cast-in-place, flow, self-compacting, mass, high-performance, and clear concrete. Suitable for all industrial and civil buildings using premix cast-in-place concrete, especially for lower-grade commercial concrete.
2. Widely applicable in high-speed railways, nuclear power, water conservancy, hydro-power projects, subways, large bridges, expressways, harbors, and wharves, along with other significant national projects.
3. Suitable for all forms of industrial and civil construction and commercial concrete mixing stations.
How to Use
1. Available as a colorless or light yellow liquid. Dosage: Generally, use 0-30% mother liquor in combination with reducing water mother liquor, incorporating other minor materials to create a water-reducing agent. The dosage of the water-reducing agent typically ranges from 1% to 3% of the total weight of cementing materials.
2.Prior to use or when altering the type or batch of cement and gravel, an adaptability test with cement and gravel is essential. Based on the test, determine the proportion of water-reducing agent
3.This product can be used independently (though typically not), or it can be combined with water-reducing mother liquor and set retarding Our specialized mother liquor is designed to significantly reduce concrete slump loss, ensuring your projects maintain the desired consistency and workability. Enhance your mix with our range of meticulously crafted functional aids, transforming it into admixtures that offer retarder, early strength, antifreeze, and superior pumping functions for diverse applications.Unlock the full potential of your concrete formulations with our innovative solutions. To achieve the best results, determine the application method and conditions through rigorous testing and advanced compounding technology.This ensures compatibility and optimal performance in all conditions.
4.Combine this exceptional product with other admixtures such as early strength agents, air entrainment agents, and retarders. Always conduct compatibility tests prior to use. Note: Avoid mixing with naphthalene series water reducers.
5.To achieve superior concrete quality, carefully determine the cement and mix ratio through precise testing. When using, ensure the mixed and measured water is added simultaneously to the concrete mixer. Conduct thorough mixing tests beforehand to assure top-tier concrete quality with our product.elevating your construction outcomes.
6.Incorporate active admixtures like fly ash and slag seamlessly by calculating the water-reducing agent dosage based on the total cementing material amount.
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