BT-302 Polycarboxylate superplasticizer
High Slump Retention Solid 50%
Product introduction
BT-302 is a new generation of fast-releasing and slump retaining mother liquor made from TPEG by free radical polymerization, and a new sustained-release group is introduced into the synthesis. Under the alkaline condition of concrete, the slow-releasing group in the molecular structure of this product can slowly release the group with dispersive function, playing the role of continuing to disperse the cement, so as to achieve the role of inhibiting the concrete slump loss.It has a low water reduction rate, but it has very high slump protection performance.Generally used with water reducing mother liquor , It is mainly used in high-strength concrete with higher requirements for slump protection performance, and its products are widely used in pumping concrete, super-flow self-compacting and high-strength high-performance concrete and commercial concrete for high-speed railway, expressway, hydro-power and other large engineering projects.
Main Feature
*The slow-release mother liquor was faster release PCE mother liquor.
The release time is generally after 30min (according to the material that the release time is difference)
*With super high slump performance, can let the concrete slump 2h without loss
*Low water reduction rate is generally not used alone, it needs to be combined with water reduction mother liquor
*With low viscosity and thixotropy, it is more suitable for concrete with 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 |
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. Applicable to the configuration of early strength concrete, retarded concrete, precast concrete, cast-in-place concrete, flow concrete, self-compacting concrete, mass concrete, high-performance concrete and clear concrete, all kinds of industrial and civil buildings in the premix cast-in-place concrete, especially for low-grade commercial concrete.
2. It can be widely used in high-speed railways, nuclear power, water conservancy and hydro-power projects, subways, large Bridges, expressways, harbors and wharves and other national large and key projects.
3.Applicable to all kinds of industrial and civil construction and commercial concrete mixing stations.
How to use
1. This product is a colorless or light yellow liquid. Dosage:Usually ,use 0-30% mother liquor with reducing water mother liquor, and mix other small materials to make water reducing agent. The dosage of water-reducing agent is generally 1% ~ 3% of the total weight of cementing materials.
2.Before use of this product or changing the type and batch of cement and gravel, it is necessary to carry out adaptability test with cement and gravel. According to the test, formulate the proportion of water reducing agent
3.This product can be single used(Usually it could not use in single) This revolutionary compound seamlessly integrates with water-reducing mother liquor, providing unparalleled adaptability. It offers set retarding properties that enhance your construction efficiency. The mother liquor works diligently to minimize concrete slump loss. Alternatively, it can be expertly combined with targeted functional aids to produce bespoke admixtures with capabilities such as retarding, early strength, antifreeze, and enhanced pumping functions.. For optimal results, determining the application method and conditions through rigorous testing and compounding technology is advised..
4.This versatile product is designed to work harmoniously with a variety of other admixtures, including early strength agents, air entrainment agents, and retarders. Comprehensive testing prior to use is recommended, and it is crucial to avoid mixing it with naphthalene series water reducers for best results.
5.Concrete cement and mix ratio should be meticulously determined through testing. During use, ensure that mixed and measured water is added simultaneously to the concrete mixer. Conducting a mixing test beforehand is vital to guarantee the impeccable quality of the concretee.
6.In scenarios with active admixtures like fly ash and slag within the concrete mix, calculate the water-reducing agent based on the total volume of cementing materials for optimal efficacy.
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