Introducing the BT-302 Polycarboxylate Superplasticizer
Remarkably High Slump Retention, Solid Concentration at 50%
Product Introduction
The BT-302 is an advanced, fast-acting formula, uniquely engineered for effective slump retention, featuring a specialized mother liquor developed from TPEG. Produced through innovative free radical polymerization, it incorporates an exceptional sustained-release group into its synthesis,ensuring optimal performance. When applied to concrete's alkaline environment, this product's slow-releasing molecular structure disperses functional groups progressively, maintaining excellent cement dispersion and significantly reducing concrete slump loss.This product offers a relatively low water reduction rate, yet excels in delivering outstanding slump protection.Itis generally used in conjunction with water-reducing mother liquor. Perfectly suited for high-strength concrete, where superior slump protection is demanded, its applications span across pumping concrete, ultra-flow self-compacting, and high-performance concrete, making it an ideal choice for commercial mixes in high-speed railways, expressways, hydro-power, and other extensive engineering ventures.
Main Features
*Compared to other mother liquors, the slow-release mother liquor discharges PCE more swiftly.
The release typically occurs post 30 minutes (variable depending on materials).
*Delivers superior slump performance, ensuring concrete slump retention for up to 2 hours without any loss.
*Due to its low water reduction rate, it is recommended to use in combination with water-reducing mother liquor.
*Designed with low viscosity and thixotropy, it is optimal 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 |
Key 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 early strength concrete, retarded, precast, cast-in-place, flow, self-compacting, mass, high-performance, and clear concrete. Ideal for all industrial and civil premix cast-in-place concrete, especially low-grade commercial mixes.
2. Extensively applicable for high-speed railways, nuclear power, water conservancy, hydro-power projects, subways, large bridges, expressways, harbors, and wharves, among other significant national projects.
3. Suitable for various industrial, civil constructions, and commercial concrete mixing stations.
Usage Instructions
1. Available as a colorless or light yellow liquid. Typical Dosage: Commonly,blend 0-30% of the mother liquor with water-reducing mother liquor, mixing in other minor materials to create an efficient water-reducing agent. The standard dosage ranges from 1% to 3% of the total weight of cementitious materials.
2.Before application or when altering the type and batch of cement and gravel, conduct adaptability tests. Based on results, adjust the water-reducing agent formulation accordingly.
3.This product may be used singularly (though typically not recommended) or combined with a water-reducing mother liquor for enhanced performance. Set Retarding: The innovative solution for controlling and delaying the setting time of concrete. Mother Liquor: Specifically formulated to significantly reduce concrete slump loss. It can also be compounded with other functional agents aids, providing enhanced versatility and application benefits. to create admixtures with specialized functions such as retarding, early strength enhancement, antifreeze capabilities, and efficient pumping.. Application Method: The optimal application techniques and conditions should be established through rigorous testing and advanced compounding technology..
4.Versatile Usage: This product can be seamlessly integrated with a variety of admixtures like early strength agents, air entrainment agents, retarders, etc. It is crucial to conduct pre-use testing for compatibility. Avoid combining with naphthalene-based water reducers.
5.Concrete: Ensure Precision: Cement type and mix ratios should be conclusively determined through comprehensive testing. During use, add the admixture and measured water concurrently into the concrete mixer. Conduct preliminary mixing tests to guarantee superior concrete quality.e
6.Active Admixtures: When incorporating elements like fly ash and slag, calculate the water-reducing agent based on the entire quantity of cementing materials to achieve desired outcomes.
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