BT-302 Polycarboxylate Superplasticizer
High Slump Retention with Solid 50% Concentration
Product Introduction
BT-302 represents a breakthrough in the realm of fast-releasing and slump retaining mother liquor ingeniously crafted from TPEG through free radical polymerization, featuring an innovative sustained-release group synthesized. In concrete's alkaline environment, the product's slow-releasing group steadily liberates its dispersive function, continuously dispersing the cement to effectively counteract concrete slump loss. It boasts a low water reduction rate, complemented by exceptional slump protection capabilities.It is generally paired with water reducing mother liquor and is primarily utilized in high-strength concrete demanding superior slump protection. The product finds wide applications in pumping concrete, super-flow self-compacting, high-strength high-performance concrete, and commercial concrete for high-speed railways, expressways, hydro-power, and other large-scale engineering ventures.
Main Features
*The slow-release mother liquor acts faster than conventional PCE mother liquor.
The release time typically occurs after 30 minutes (varying with material).
*Exhibits superior slump performance, maintaining slump for up to 2 hours without loss.
*Due to its low water reduction rate, it is generally used in conjunction with water reduction mother liquor.
*With low viscosity and thixotropy, it is ideally suited 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. Suitable for early strength, retarded, precast, cast-in-place, flow, self-compacting, mass, high-performance, and clear concrete, as well as industrial and civil buildings with premix cast-in-place concrete, especially low-grade commercial concrete.
2. Extensively applicable in high-speed railways, nuclear power, water conservancy and hydro-power projects, subways, large bridges, expressways, harbors, and wharves as well as national large and key projects.
3. Suitable for a variety of industrial and civil construction and commercial concrete mixing stations.
Usage Instructions
1. This product is available as a colorless or light yellow liquid. Dosage: Typically,use 0-30% mother liquor alongside reducing water mother liquor, incorporating other small materials to create water reducing agents. The dosage of the water-reducing agent generally ranges from 1% to 3% of the total weight of cementing materials.
2.Prior to using this product or altering the cement and gravel type and batch, it is crucial to conduct adaptability tests. Based on the test results, establish the proportion of water reducing agent
3.This product can be used alone (though it is usually not recommended) It can be synergistically used with water-reducing mother liquor and Experience superior performance with our set retarding solution. Utilize our mother liquor to effectively reduce concrete slump loss, or seamlessly blend it with functional aids to create admixtures equipped with retarding, early strength, antifreeze, and pumping capabilities.. Ensure optimal application through precise testing and advanced compounding technology..
4.This advanced product integrates flawlessly with various admixtures such as early strength agents, air entrainment agents, and retarders. Prior testing is essential. Avoid combining with naphthalene series water reducers for best results.
5.For impeccable results, concrete cement and mix ratios must be verified by testing. During application, ensure that the mixed water is added concurrently or into the concrete mixer. Conduct thorough mixing tests to guarantee the concrete's premium quality.
6.In scenarios incorporating active admixtures like fly ash and slag, calculate the water-reducing agent based on the total cementing materials for precise formulation.
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