Bt-302 Advanced Slump Retention Superplasticizer Solid 50% for Construction Projects

• 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) 

BT-302 Polycarboxylate Superplasticizer (slump retaining) represents a breakthrough in modern concrete technology. Crafted with a novel mother liquor developed by Shandong Gaoqiang New Material Technology Co., Ltd., in collaboration with top-tier upstream polyether manufacturers, this superplasticizer incorporates advanced imported additives. It features a pioneering catalyst and control system, with a molecular structure meticulously engineered to enhance performance.

In response to diverse customer demands, Gaoqiang has innovatively crafted a polycarboxylate-based superplasticizer (slump retaining) that not only preserves slump but also enhances dispersibility. This cutting-edge design leverages insights into slump loss in freshly mixed concrete, blending post-addition superplasticizer methodologies with reactive polymer research. By modifying admixture adsorption behavior and tailoring polymer structures, this product mimics graft copolymer admixtures with extended graft side chains, reduced carboxyl group ratios, and ester cross-linking points, delivering exceptional performance.

Featuring long polyethylene glycol side chains, our copolymer molecules create a steric hindrance effect, effectively slowing cement particle aggregation. A minimal polymer presence at the cement-water interface ensures optimal dispersibility. The ester cross-linking points within these copolymers hydrolyze in alkaline cement environments, gradually releasing low molecular weight copolymers that boost dispersing capabilities. This ingenious mechanism counteracts superplasticizer depletion by C3A and C4AF, maintaining the superplasticizer in a critical micelle state, and significantly mitigating slump loss.

Performance Characteristics:

(1) Remarkable slump retention properties: no slump loss after 1 hour and over 80% of initial slump retained after 2 hours. This effectively addresses rapid slump loss in concrete, fulfilling special condition requirements.
(2) Delivers superior concrete workability, with high fluidity ensuring easy pouring and compacting. It significantly reduces concrete viscosity, making it ideal for pumping applications.
(3) A commitment to sustainability: our production process is environmentally friendly, generating no wastewater, waste gas, or waste residue.
(4) Demonstrates extensive compatibility with Portland cement, ordinary Portland cement, slag Portland cement, fly ash cement, *** ash cement, and a wide range 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: Compliant with GB8076-2008, ensuring rigorous quality control and performance reliability.
This product presents itself as a clear or light yellow liquid, perfectly suited for various applications.

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 optimal results, a recommended dosage of 0.5% - 1.0% (by weight of cementitious material) is suggested, with precise determination achieved through testing based on specific cement and aggregate characteristics.
(2) The superplasticizer can either be dissolved in water and combined with other additives or directly mixed into concrete. For best results, incorporation after compounding is advised.
(3) Compatible with various retarders and slump retention agents, though not recommended for use with fatty acids, naphthalene-based, amino-based, or ion-based additives to ensure peak performance.
(4) Our dedicated technical team offers comprehensive on-site guidance to ensure correct usage and effective compounding.

Packing, Storage, and Transport:

1. Offered in a liquid form, our product is conveniently packaged in 230 kg plastic drums or 1000 Liter IBC tanks. Custom bulk packaging is available to meet specific customer requirements.

2. Delight in peace of mind with our product's non-toxic and non-flammable attributes. For optimal quality preservation, store in a dry place, shielded from direct sunlight's rays.

3. Our JS-103 polycarboxylate superplasticizer guarantees robust performance for a minimum of 12 months, provided it is stored properly or kept under cover, ensuring longevity and reliability.