Bt-302 PCE Soild 50% Liquid Slump Retention Polycarboxylate Superplasticizer Concrete Admixture

• 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) Solid 50% Liquid

BT-302 Polycarboxylate Superplasticizer (slump retaining) represents a cutting-edge advancement in the realm of concrete additives. Developed by the innovative team at Shandong Gaoqiang New Material Technology Co., LTD., this superplasticizer is crafted from a pioneering polycarboxylate mother liquor, enhanced with premium imported additives. Through strategic technical collaboration with prominent polyether manufacturers, Gaoqiang has ingeniously developed a novel catalyst and control system, all grounded in a scientifically orchestrated molecular structure.

Shandong Gaoqiang has ingeniously engineered a revolutionary polycarboxylate-based superplasticizer, meticulously designed to cater to diverse customer demands. This exceptional product not only retains slump but also exhibits remarkable dispersibility. Rooted in the scientific principles of slump loss in freshly mixed concrete, it draws inspiration from advanced post-addition superplasticizer methods and cutting-edge research in reactive polymers. The innovative approach involves modifying the adsorption behavior of admixtures to craft a polymer structure that mirrors graft copolymer admixtures. Distinguished by longer graft side chains, reduced carboxyl group ratios, and strategically placed ester cross-linking points, this superplasticizer showcases an unrivaled chemical architecture.

The incorporation of extended polyethylene glycol side chains within the copolymer molecules imparts impressive steric hindrance, effectively decelerating the physical aggregation of cement particles. A trace amount of polymer presence at the cement-water interface ensures a degree of dispersibility. In an alkaline cement environment, the ester cross-linking points undergo hydrolysis, gradually releasing low molecular weight copolymers that enhance dispersing functionality. This crucial supplementation compensates for the superplasticizer consumption caused by C3A and C4AF, maintaining the superplasticizer in a critical micelle state, and thus, effectively averting significant slump loss.

Performance Characteristics:

(1) Experience zero slump loss after 1 hour, with over 80% of the initial slump retained after 2 hours. This solution effectively addresses the challenge of rapid slump loss in concrete, meeting stringent slump retention demands under special conditions.
(2) Concrete exhibits superior working performance with high fluidity, facilitating effortless pouring and compaction. This product significantly reduces concrete viscosity, making it ideally suited for efficient pumping.
(3) Environmentally conscious production process, ensuring no generation of wastewater, waste gas, or waste residue.
(4) Demonstrates remarkable versatility and adaptability to a wide range of cements including Portland, ordinary Portland, slag Portland, fly ash, *** ash cements, and various 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
This innovative product is characterized by its transparent or light yellow 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 experimental purposes, a recommended dosage of 0.5% - 1.0% (by weight of cementitious material) is advised. Optimal dosage should be established through testing, taking into account the specific characteristics of cement, aggregates, and other variables.
(2) The superplasticizer is versatile, allowing for dissolution in water and combination with other additives. It can be directly integrated into the concrete mix, with a recommendation to add post-compounding for enhanced results.
(3) Compatible with a variety of retarders and slump retention agents, yet it is advised to avoid mixing with fatty acids, naphthalene-based, amino-based, or ion-based additives to preserve optimal performance.
(4) Our expert technical team is at your service, offering on-site guidance to ensure proper usage and compounding, maximizing the product's efficacy.

Packing, Storage and Transport

1. This product is available in liquid form, packaged in plastic drums of 230 kg each, or in 1000 Liter IBC tanks. We also offer bulk packaging tailored to customer's specific requirements.

2. Non-toxic and non-flammable, the product should be stored in a dry place, shielded from direct sunlight to maintain its integrity.

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