BT-302 Polycarboxylate Superplasticizer - A Revolutionary Solution for Modern Concrete
High Performance Slump Retention with 50% Solid Content
Product Introduction
BT-302 represents the next-level evolution in fast-releasing and slump retaining technology, featuring a mother liquor crafted from TPEG through advanced free radical polymerization, introducing a novel sustained-release group into the synthesis. In the alkaline environment of concrete, the innovative slow-releasing group within this product's molecular structure gradually releases dispersive elements, ensuring continuous cement dispersion, thus significantly inhibiting concrete slump loss.It boasts a low water reduction rate, but excels in providing exceptional slump protection performance,delivering reliable results.Typically combined with water-reducing mother liquor, it is ideal for high-strength concrete demanding superior slump protection, making it a preferred choice for pumping concrete, super-flow self-compacting, high-strength, high-performance, and commercial concrete, particularly suited for high-speed railway, expressway, hydro-power, and other significant engineering ventures.
Main Features
* The slow-release mother liquor transforms into a faster release PCE mother liquor.
Typically, the release occurs after 30 minutes, though this can vary depending on specific materials.
* Exhibits extraordinary slump performance, maintaining concrete slump for 2 hours without degradation.
* Due to its low water reduction rate, it is recommended to combine it with water-reducing mother liquor.
* Featuring low viscosity and thixotropy, it is especially appropriate 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 |
Enhances the 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 formulating early strength, retarded, precast, cast-in-place, flow, self-compacting, mass, high-performance, and clear concretes, as well as various industrial and civil buildings requiring premix cast-in-place concrete, particularly low-grade commercial concrete.
2. Widely applicable to high-speed railways, nuclear power, water conservancy and hydro-power projects, subways, large bridges, expressways, harbors, and wharves, supporting national large-scale and key projects.
3. Ideal for a broad range of industrial, civil construction, and commercial concrete mixing stations.
Usage Instructions
1. This product presents as a colorless or light yellow liquid. Dosage: Generally,utilize 0-30% mother liquor with a reducing water mother liquor, mixing in other small components to craft a water-reducing agent. Typically, the water-reducing agent constitutes 1% to 3% of the total weight of cementing materials.
2.Before deployment or changing the type and batch of cement and gravel, it's crucial to conduct an adaptability test with these materials. Based on the results, determine the proportion of water-reducing agent.
3.While this product can be used independently (though typically not recommended), This exceptional product can seamlessly blend with water-reducing mother liquor, offering unparalleled slump control. Set retarding capabilities are enhanced when combined with our specialized mother liquor, effectively reducing concrete slump loss. Additionally, it can be compounded with a variety of functional aids to create sophisticated admixtures with unique functionalities such as retardation, early strength enhancement, antifreeze properties, and superior pumping capabilities. To ensure optimal performance, the application method and conditions should be meticulously determined through comprehensive testing and innovative compounding technology.
4.This versatile product can be synergistically used with various admixtures including early strength agents, air-entrainment agents, and retarders. It is imperative to conduct thorough testing before use. Please refrain from mixing with naphthalene series water reducers.
5.For concrete production, the cement and mix ratio should be precisely determined through rigorous testing. When in use, ensure to add the mixed and measured water simultaneously to the concrete mixer to guarantee optimal quality. Conduct a mixing test prior to use to uphold concrete excellence.
6.If your concrete ratio includes active admixtures such as fly ash and slag, the water-reducing agent amount must be calculated based on the total cementing materials to achieve desired results.
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