Introducing the BT-302 Polycarboxylate Superplasticizer
An Exceptional High Slump Retention Solid at 50% Concentration
Product Introduction
The BT-302 is a pioneering, fast-releasing solution with superior slump retention capabilities, crafted as a mother liquor, utilizing TPEG via advanced free radical polymerization techniques. It incorporates an innovative sustained-release group to enhance the synthesis process,ensuring optimal performance. In the alkaline environment of concrete, its unique molecular structure facilitates a slow release of dispersive groups, perpetually dispersing cement particles to effectively inhibit concrete slump loss.It boasts a comparatively low water reduction rate, yet demonstrates exceptionally robust slump protection capabilities.This makes itan ideal companion to water reducing mother liquor, primarily designed for high-strength concrete applications with stringent slump protection needs. Its effectiveness spans across a wide array of concrete types including pumping concrete, super-flow self-compacting, and high-performance concretes. It is also vital for large-scale engineering projects such as high-speed railways, expressways, and hydro-power infrastructures. Key applications include high-strength concrete and commercial concrete for various large engineering projects like high-speed railway and expressway constructions, as well as hydro-power projects.Main Features
Highlights of This Product
*The novel slow-release mother liquor outpaces conventional PCE mother liquors in release efficiency.
The typical release timeline starts around 30 minutes and can vary based on composition.
*Exhibits exceptional slump retention, maintaining concrete slump for up to 2 hours without degradation.
*Though featuring a low water reduction rate, it is typically used in conjunction with a water-reducing mother liquor for optimal results.
*Its low viscosity and thixotropic nature make it perfectly suited for concrete mixes 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 |
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 |
Applications
1. Ideally suited for the preparation of early strength, retarded, precast, cast-in-place, flow, self-compacting, mass, high-performance, and clear concretes. It excels in premix cast-in-place concrete for all types of industrial and civil buildings, especially low-grade commercial concrete.
2. Perfectly tailored for high-speed railways, nuclear power, water conservancy, and hydro-power projects. Essential for subways, large bridges, expressways, harbors, and wharves in key national projects.
3. Suitable for all types of industrial and residential construction and commercial concrete mixing stations.
Usage Instructions
1. This product is available as a colorless or light yellow liquid. Dosage: Generally, use a 0-30% mother liquor blend with a water-reducing mother liquor. Mix with other adjunct materials to create a water-reducing agent. Typically, the water-reducing agent constitutes 1% to 3% of the total cementitious materials' weight. materials.
2.Prior to utilization or upon changing cement and gravel types or batches, conducting adaptability tests with cement and gravel is recommended. This will guide the formulation of the appropriate water-reducing agent proportions.
3.The product can be used singularly (though typically not advised on its own) This innovative additive can seamlessly blend with water-reducing mother liquor and set retarding mother liquor to effectively diminish concrete slump loss. Furthermore, it can be expertly combined with functional aids to craft superior admixtures that exhibit retarder, early strength, antifreeze, and pumping capabilities to meet diverse construction needs. To ensure optimal performance, the application method and conditions should be meticulously determined by rigorous testing and advanced compounding technology.
4.This versatile product is compatible with various other admixtures, including early strength agents, air entrainment agents, and retarders. Prior to use, comprehensive testing is essential. Importantly, avoid mixing with naphthalene series water reducers.
5.Concrete cement and mix ratios should be finalized through thorough testing. When in use, both mixed and measured water should be incorporated simultaneously in the concrete mixer. Conduct a mixing test beforehand to uphold the quality of the concrete
6.In scenarios where active admixtures such as fly ash and slag are present in the concrete mix, calculate the water-reducing agent as part of the total cementing materials for precise formulation.
Audited Supplier 
){kind=link}