BT-302 Polycarboxylate Superplasticizer - The Future of Concrete Excellence
High Slump Retention Solid at 50% Concentration
Product Introduction
Introducing BT-302, a cutting-edge, fast-releasing solution designed for superior slump retention, crafted meticulously from TPEG, utilizing advanced free radical polymerization. Enhancing its formulation is a novel sustained-release group,an innovation that distinguishes it. In the alkaline environment of concrete, the product's slow-releasing group gradually unveils its dispersive prowess, effectively dispersing cement molecules and significantly curtailing slump loss.While boasting a moderate water reduction rate, this superplasticizer excels in maintaining unmatched slump retention over extended periods.It isideally paired with a water-reducing mother liquor, This formulation finds its forte in high-strength concrete applications demanding superior slump retention. Its versatility makes it indispensable in pumping concrete, ultra-fluid self-compacting, and high-performance or commercial concrete used in critical infrastructures like high-speed railways, expressways, and large-scale hydro-power projects.setting new benchmarks in engineering excellence.
Main Features
*The innovative slow-release mother liquor supersedes traditional PCE mother liquors by releasing faster.
Release typically occurs after 30 minutes, adaptable based on material properties.
*Exhibits exceptional slump retention, maintaining concrete slump for up to 2 hours with no loss.
*A lower water reduction rate necessitates combination with a water-reducing mother liquor for optimal performance.
*Its low viscosity and thixotropic nature make it ideal 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 |
Enhancing 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 |
Application
1. Perfectly suited for early strength, retarded, precast, cast-in-place, flow, self-compacting, mass, high-performance, and clear concretes. Essential for industrial and civil buildings that utilize premixed cast-in-place concrete, particularly beneficial for low-grade commercial concrete.
2. Extensively applicable in pivotal infrastructure projects like high-speed railways, nuclear power, water conservancy, and hydro-power projects, subways, grand bridges, expressways, ports, and docks.
3. Versatile for various industrial, civil construction, and commercial concrete batching plants.
Usage Instructions
1. This product is a colorless or light yellow liquid, embodying efficiency and ease of use. Dosage: Typically,utilize 0-30% mother liquor in conjunction with a water-reducing mother liquor, blending with other minor components to formulate a superior water-reducing agent. The general dosage of this agent is 1% - 3% of the total weight of cementingmaterials, ensuring optimal performance.
2.Prior to use or when altering cement, gravel type, or batch, it is essential to conduct adaptability tests with these materials. Based on test outcomes, determine the precise proportion of water-reducing agent.
3.While this product can be utilized independently (single use is generally not recommended), This product can be seamlessly integrated with water-reducing mother liquor and set retarding mother liquor to significantly minimize concrete slump loss. Alternatively, it can be compounded with functional aids to create admixtures with diverse capabilities such as retarding, early strength enhancement, antifreeze properties, and superior pumping functions. The ideal application method and conditions should be carefully ascertained through testing and advanced compounding technology.
4.This versatile product can be effectively used in conjunction with various admixtures like early strength agents, air entrainment agents, and retarders. Prior testing is essential. It is crucial to avoid mixing with naphthalene series water reducers.
5.Concrete cement and the mixing ratio must be determined by comprehensive testing. During use, mixed water should be added alongside the concrete in the mixer. Pre-use mixing tests are vital to ensure unparalleled quality of the concretee
6.In scenarios where active admixtures, such as fly ash and slag, are present in the concrete mix, the water-reducing agent dosage should be calculated based on the total cementing materials.
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