Bt-302 High Efficient Slump Retention Polycarboxylate Superplasticizer 50% Solid Content Liquid

• Customization: Available
• Appearance: Clear & Light Yellow
• Application: Concrete Admixture, Mortar Admixture
• Model NO.: BT-302
• Chemical Composition: Polycarboxylate-based Water Reducers
• Setting Time: Extended Setting Time
• Type: Ordinary Water-reducing Agent
• Water Reduction Rate: 10%-20%
• Standard: GB8076-2008
• Soild Content: 40%, 50%, 60%
• pH Value: 5-7
• Dosage: 0.4%-1%
• Transport Package: IBC Tank, Flexitank
• Specification: 1100kg, 22000kg
• Trademark: Gaoqiang
• Origin: China
• HS Code: 382440
• Production Capacity: 50000tons/Year

Product Description

BT-302 Polycarboxylate Superplasticizer (Slump Retaining)  with 50% solid liquid 

The BT-302 Polycarboxylate Superplasticizer (slump retaining) represents a state-of-the-art advancement in concrete technology. Developed by Shandong Gaoqiang New Material Technology Co., LTD, this innovative solution combines the newly formulated polycarboxylate superplasticizer mother liquor with high-quality imported additives. Through strategic partnerships with leading polyether manufacturers, we have pioneered a cutting-edge catalyst and control system, resulting in a scientifically optimized molecular structure for unparalleled slump retention.

To cater to diverse customer demands, Gaoqiang has expertly crafted a novel polycarboxylate-based superplasticizer (slump retaining), distinguished by its remarkable ability to maintain slump while enhancing dispersibility. Rooted in an in-depth understanding of slump loss dynamics in freshly mixed concrete, this design leverages both post-addition methods of superplasticizers and breakthrough research on reactive polymers. By innovatively altering admixture adsorption behavior and crafting a bespoke polymer structure, this product mirrors the chemical architecture of graft copolymer admixtures, yet features extended graft side chains, reduced carboxyl group ratios, and strategically placed ester cross-linking points within the copolymer framework.

The product's long polyethylene glycol side chains deliver significant steric hindrance effects, effectively decelerating the physical aggregation of cement particles. A minimal quantity of polymer, adsorbed at the cement-water interface, ensures a degree of dispersibility. The copolymer's smart ester cross-linking points undergo hydrolysis in an alkaline cement environment, progressively releasing low molecular weight copolymers imbued with dispersing capabilities into the cement-water matrix. This process adeptly compensates for the superplasticizer's consumption by C3A and C4AF, preserving it in a critical micelle state and safeguarding against drastic slump loss.

Performance Characteristics:

(1) Astonishingly, there is zero slump loss after one hour, while over 80% of the initial slump is retained after two hours, providing an effective solution for the notorious issue of rapid slump loss in concrete and fulfilling slump retention needs under special conditions.
(2) Exhibiting excellent workability, the concrete boasts high fluidity, facilitating easy pouring and compacting. This feature significantly reduces the viscosity of concrete, making it ideal for pumping applications.
(3) Environmentally conscious, the production process generates no wastewater, waste gas, or waste residue.
(4) Offers wide adaptability, seamlessly working with Portland cement, ordinary Portland cement, slag Portland cement, fly ash cement, *** ash cement, and a variety of admixtures.

Specification

Test Item	Quality Standard	Test Result
Alkali Content (%)	≤3.0	2.1
Chloride Ion Content (%)	≤0.020	0.014
Sodium Sulfate Content (%)	≤10.0	1.28
Cement Net Slurry Fluidity mm	≥240	240
Appearance	/	Transparent or light yellow
Density	g/cm³	1.020 - 1.060
pH	/	5.5 - 8.5
Solid Content	/	40

Test Standard:

Test Standard: GB8076-2008
In appearance, the product is transparent or light yellow and is offered in a liquid form.

Concrete Physical and Mechanical Properties:

Test Item		Quality Standard	Test Result
Slump Retention Value mm	30min	≥180	210
	60min	≥150	190
Compressive Strength ratio (%)	3d	≥170	190
	7d	≥150	180
	28d	≥135	160
Water Reduction Ratio (%)		≥25	28
Normal Pressure Water Loss Ratio (%)		≤20	0
Pressure Lactation Rate Ratio (%)		≤90	38
Gas Content (%)		≤5.0	3.5
Corrosion Effect on Steel Reinforcement		No corrosion	No corrosion
Shrinkage Rate Ratio (%)		≤135	110

Usage Guidelines:

(1) For experimentation, a recommended dosage of 0.5% - 1.0% (by weight of cementitious material) is suggested. Determine the optimal dosage through testing, considering the specific characteristics of cement, aggregates, and other factors.
(2) The superplasticizer can be dissolved in water and combined with other additives or directly introduced into the concrete mix. For best results, it is recommended to add it post-compounding.
(3) Compatible with various retarders and slump retention agents, it is advised not to mix with fatty acids, naphthalene-based, amino-based, or ion-based additives to prevent performance interference.
(4) Our skilled technical team offers on-site guidance for optimal usage and compounding practices.

Packing, Storage, and Transport:

1. Available in liquid form, this product is packaged in plastic drums (230 kg/drum) or 1000 Liter / IBC tanks. Bulk options are available to meet specific customer requirements.

2. Classified as non-toxic and non-flammable, the product should be stored in a dry place, away from direct sunlight to ensure longevity and stability.

3.JS-103 polycarboxylate superplasticizer has a minimum shelf life of 12 months provided it is stored or under cover.