BT-302 Polycarboxylate Superplasticizer
Exceptional High Slump Retention, Solid 50%
Product Introduction
Introducing BT-302, a revolutionary new generation of fast-releasing and impressively slump-retaining mother liquor crafted from TPEG using advanced free radical polymerization. The synthesis includes an innovative sustained-release group. Within the alkaline environment of concrete, the slow-releasing molecules in this product's structure release a dispersive group that continuously disperses cement particles. This innovative feature effectively mitigates concrete slump loss. It exhibits a relatively low water reduction rate, while offering exceptionally high slump protection performance.Typically used in conjunction with water reducing mother liquors, it is ideal for high-strength concrete applications demanding superior slump protection. Its versatility extends to pumping concrete, super-flow self-compacting, and high-strength, high-performance concrete, as well as commercial concrete for high-speed railways, expressways, hydropower, and other extensive engineering projects..
Main Features
* The slow-release mother liquor offers faster release compared to traditional PCE mother liquors.
Release time typically occurs after 30 minutes (varies depending on material conditions).
* Boasting superlative high slump performance, it ensures concrete slump remains unchanged for up to 2 hours.
* With a low water reduction rate, it is best used in combination with water reduction mother liquors.
* Low viscosity and thixotropy make it especially suitable 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 crafting early strength concrete, retarded concrete, precast concrete, cast-in-place concrete, flow concrete, self-compacting concrete, mass concrete, high-performance concrete, and clear concrete. Suitable for all kinds of industrial and civil building construction with premixed cast-in-place concrete, particularly advantageous for low-grade commercial concrete.
2. Widely applicable to high-speed railways, nuclear power facilities, water conservancy, hydro-power projects, subways, large bridges, expressways, harbors, wharves, and other significant national projects.
3. Ideal for a vast array of industrial, civil construction, and commercial concrete mixing stations.
How to Use
1. Presented as a colorless or light yellow liquid. Dosage: Typically,use 0-30% mother liquor combined with reducing water mother liquor, alongside other minor materials, to formulate a water-reducing agent. The recommended dosage of this agent ranges from 1% to 3% of the total weight of cementing materials. .
2.Before utilizing this product, or when altering the type or batch of cement and gravel, it is crucial to conduct adaptability tests with these materials. Based on test results, determine the appropriate proportion of water-reducing agent.
3.This product can be used singularly (although typically not recommended for standalone use). This exceptional product can harmoniously blend with water-reducing mother liquor to enhance performance, and it can be combined with set retarding mother liquor to significantly minimize concrete slump loss. Moreover, it can be expertly compounded with functional aids to develop specialized admixtures that offer retarding, early strength, antifreeze, or pumping capabilities.These tailored mixtures ensure flexibility and adaptability in various construction scenarios. For optimal results, the application method and specific conditions should be meticulously determined through testing and advanced compounding technology.By doing so, you ensure that the product performs at its peak potential.
4.This innovative product can be seamlessly integrated with a wide array of other admixtures such as early strength agents, air entrainment agents, and retarders. However, it's imperative to conduct thorough testing before use. Importantly, avoid mixing with naphthalene series water reducers to maintain quality integrity.
5.Concrete cement and mix ratios must be precisely determined by rigorous testing. When applying, ensure mixed and measured water is added simultaneously with the concrete into the mixer. Conduct pre-application mixing tests to guarantee unparalleled concrete quality.e
6.In cases where active admixtures such as fly ash and slag are included in the concrete mix, it is essential to calculate the water-reducing agent based on the total amount of cementing materials to ensure optimal performance.
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