BT-302 Polycarboxylate Superplasticizer High Slump Retention liquid solid 50%.
Introducing the Product
BT-302 represents a new era of superplasticizers, combining rapid-release action with innovative design, providing both quick and long-lasting slump retention in a mother liquor formulation made from TPEG. Created through advanced free radical polymerization, it incorporates a unique sustained-release group for enhanced performance. Under alkaline concrete conditions, this product's slow-releasing molecular group gradually disperses to maintain cement fluidity, significantly reducing slump loss.It exhibits a minimal water reduction rate, yet excels in delivering remarkable slump protection.Typically paired with water-reducing mother liquor, it is tailored for high-strength concrete demanding superior slump retention, finding applications in pumping concrete, super-fluid self-compacting concrete, and high-strength commercial concrete for mega projects like high-speed railways, expressways, and hydro-power developments.
Key Features
*The innovative slow-release mother liquor complements faster-releasing PCE mother liquors.
Release typically begins after 30 minutes, although this can vary with material differences.
*Boasting exceptional slump performance, it ensures concrete retains its slump for 2 hours without degradation.
*The low water reduction rate implies it should not be used in isolation but combined with water-reducing mother liquor.
*Featuring low viscosity and thixotropy, ideal for low water-cement ratio concretes.
Characteristics at a Glance
| 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 |
Concrete 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 |
Applications
1. Perfect for early strength, retarded, precast, cast-in-place, flow, self-compacting, mass, high-performance, and clear concretes in industrial and civil buildings, especially for low-grade commercial concrete.
2. Widely applicable in major national projects such as high-speed railways, nuclear power, water conservancy, subways, large bridges, expressways, harbors, and wharves.
3. Suitable for various industrial and civil construction and commercial concrete mixing stations.
Guidelines for Use
1. This product is available as a colorless or light yellow liquid. Dosage: Typically,combine 0-30% mother liquor with water-reducing mother liquor, adding other minor materials to formulate a water-reducing agent. The agent's dosage usually ranges from 1% to 3% of the total weight of cementing materials.
2.Before implementation or when switching cement and gravel types or batches, perform adaptability tests to determine the optimal water-reducing agent formulation.
3.Though this product is designed to be used alongside other agents (typically not used alone) it can be effectively combined with water-reducing mother liquors to achieve desired results. Indulge in the innovative solution of set retarding Harness the power of the mother liquor to minimize concrete slump loss. Alternatively, you can compound with specialized functional aids to create bespoke admixtures boasting retarder, early strength, antifreeze, and exceptional pumping capabilities. The application methods and conditions are paramount and should be expertly determined through rigorous testing and advanced compounding technology.
4.This versatile product is designed to be used synergistically with other admixtures like early strength agents, air entrainment agents, and retarders. Prior testing is advised for optimal performance. Avoid mixing with naphthalene series water reducers to maintain efficacy.
5.Concrete cement and mix ratios should be meticulously determined through testing. During usage, ensure that mixed and measured water is incorporated simultaneously with the concrete mixer for best results. A preliminary mixing test is crucial to guarantee the superior quality of the concrete
6.In scenarios where active admixtures such as fly ash and slag are present in the concrete mix, it is essential to calculate the water-reducing agent amount based on the total cementing materials to achieve optimal performance.
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