Product Series: BT-302 Polycarboxylate Superplasticizer
Exclusively Formulated: High Slump Retention Solid at 50% Concentration
Comprehensive Product Introduction
BT-302 heralds a novel era in superplasticizers, marked by its swift-release action and exceptional slump retention capabilities. This innovative mother liquor is crafted from TPEG via advanced free radical polymerization, featuring a pioneering sustained-release composition in the synthesis. In the alkaline environment of concrete, BT-302's molecular structure gradually releases dispersive agents, continuously dispersing cement particles to combat concrete slump loss effectively. It boasts a modest water reduction rate, yet excels in delivering outstanding slump protection performance.Typically, it is paired with water-reducing mother liquor. BT-302 is ideal for high-strength concrete demanding superior slump protection, widely utilized in pumping concrete, super-flow self-compacting, high-strength, and high-performance concrete, as well as commercial concrete for large-scale projects like high-speed railways, expressways, and hydropower constructions.
Main Features of BT-302
*The slow-release mother liquor outpaces traditional PCE mother liquors in dispersal.
Typically, it starts releasing its beneficial properties after about 30 minutes, though this can vary based on specific material conditions.
*Boasting ultra-high slump performance, it maintains concrete slump for up to 2 hours without significant loss.
*Due to its low water reduction rate, it is seldom used alone, but rather in concert with a water-reducing mother liquor.
*With its low viscosity and thixotropic nature, BT-302 is particularly suited for concrete mixes with low water-to-cement ratios.
Typical Characteristics and Benefits
| 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 |
Enhancement of 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 |
Widespread Applications
1. Perfect for early strength concrete, retarded concrete, precast concrete, cast-in-place concrete, flow concrete, self-compacting concrete, mass concrete, high-performance concrete, and clear concrete, as well as various industrial and civil buildings utilizing premixed cast-in-place concrete. Especially beneficial for low-grade commercial concrete.
2. Extensively employed in ambitious projects such as high-speed railways, nuclear power plants, water conservancy and hydro-power projects, subways, large bridges, expressways, and harbors.
3. Applicable across all industrial and civil construction paradigms, enhancing commercial concrete mixing stations.
Detailed Usage Instructions
1. This product is available as a colorless or light yellow liquid. Dosage Guidelines: Typically, use between 0-30% mother liquor blended with reducing water mother liquor, incorporating additional minor materials to create a water-reducing agent. The suggested dosage of this agent ranges from 1% to 3% of the total weight of the cementing materials. .
2.Prior to usage or when altering cement and gravel types or batches, an adaptability test with the selected cement and gravel is essential. This test informs the optimal proportion of water-reducing agent required.
3.While this product can be utilized independently, single use is typically not recommended. Our innovative product can be seamlessly combined with water-reducing mother liquor to achieve optimal results. Additionally, it can incorporate set retarding properties, allowing for a reduction in concrete slump loss. You may also create a blend with functional aids to develop advanced admixtures that offer retarder, early strength, antifreeze, and pumping functionalities. The precise application method and conditions should be expertly determined through comprehensive testing and advanced compounding technology.
4.This versatile product can be synergistically used with various other admixtures, including early strength agents, air entrainment agents, and retarders. It is crucial to conduct tests before use. Importantly, avoid mixing with naphthalene series water reducers.
5.For impeccable concrete results, the cement and mix ratio must be scientifically determined through testing. During application, ensure that mixed water is added simultaneously with the concrete mixer. Prior mixing tests are essential to guarantee premium concrete quality.
6.In scenarios where active admixtures like fly ash and slag are present in the concrete ratio, accurately calculate the water-reducing agent as a part of the total cementing materials.
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