BT-302 Polycarboxylate superplasticizer
High Slump Retention Solid 50%
Product introduction
BT-302 epitomizes a cutting-edge generation of fast-releasing and slump retaining mother liquor crafted from TPEG via innovative free radical polymerization, incorporating a novel sustained-release group into its sophisticated synthesis.. In the alkaline milieu of concrete, this product's molecular structure hosts a slow-releasing group that gradually unveils its dispersive prowess, thereby perpetuating cement dispersion and effectively curbing concrete slump loss..This formulation boasts a modest water reduction rate, yet it excels in delivering exceptional slump protection performance..Typically paired with water reducing mother liquor, it shines in high-strength concrete applications that demand superior slump protection performance. Its versatility spans pumping concrete, super-flow self-compacting, high-strength high-performance concrete, and commercial concrete for elite projects like high-speed railways, expressways, hydro-power plants, and other monumental engineering endeavors.
Main Feature
*This slow-release mother liquor surpasses traditional PCE mother liquors in release speed.
The typical release timeline kicks off around 30 minutes (subject to material-specific variations).
*Boasting extraordinary slump retention capabilities, it ensures concrete retains slump for up to 2 hours without degradation.
*Its low water reduction rate necessitates combination with water reducing mother liquor for optimal results.
*With low viscosity and thixotropy, it is particularly suited for concrete with a low water-to-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 |
Physical properties of this outstanding concrete solution
| 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. This product is ideal for formulating early strength concrete, retarded concrete, precast concrete, cast-in-place concrete, flow concrete, self-compacting concrete, mass concrete, high-performance concrete, and clear concrete across industrial and civil buildings, particularly excelling in low-grade commercial concrete applications.
2. Its broad applicability spans national mega-projects such as high-speed railways, nuclear power plants, water conservancy, hydro-power installations, subways, grand bridges, expressways, harbors, and wharves.
3. Suitable for diverse industrial, civil construction, and commercial concrete mixing stations, meeting the precise demands of each.
How to use
1. Available as a colorless or light yellow liquid. Dosage: Typically employ0-30% mother liquor in conjunction with water reducing mother liquor, blending additional minor materials to craft a water-reducing agent. The recommended dosage for this agent is generally 1% ~ 3% of the total cementitiousmaterials weight. .
2.Prior to product use or when altering cement and gravel types or batches, conduct compatibility tests with these materials to determine the precise water-reducing agent composition.
3.While this product can be used alone (though typically not advised), it harmonizes beautifully with water-reducing mother liquor to enhance performance. Embrace the art of set retarding, a crucial element in optimizing concrete performance. Utilize the mother liquor to significantly reduce concrete slump loss, or blend it seamlessly with functional aids to craft tailor-made admixtures endowed with remarkable retarder, early strength, antifreeze, and pumping functions.. The precise application method and conditions should be ascertained through meticulous testing and advanced compounding technology..
4.This versatile product harmoniously combines with various admixtures like early strength agents, air entrainment agents, and retarders. Mandatory testing is crucial prior to use. Avoid mixing with naphthalene series water reducers to ensure optimal performance.
5.Concrete cement and mix ratios must be precisely determined via rigorous testing. During application, integrate mixed and measured water simultaneously or add directly to the concrete mixer. Conduct preliminary mixing tests to uphold the superior quality of the concrete.e
6.In scenarios where concrete formulations include active admixtures such as fly ash and slag, calculate the water-reducing agent quantity based on the total cementing materials to maintain consistency and effectiveness.
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