Bt-302 PCE Reliable Slump Retention Polycarboxylate Superplasticizer Liquid Solid 50% 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% and Liquid Formulation

Introducing the BT-302 Polycarboxylate Superplasticizer (slump retaining), an innovative creation by Shandong Gaoqiang New Material Technology Co., Ltd. This advanced superplasticizer is formulated from a pioneering polycarboxylate superplasticizer mother liquor, which is further enhanced with premium imported additives. Our synthesis process, developed in collaboration with leading polyether manufacturers, features a groundbreaking catalyst and control system constructed with a meticulously designed molecular architecture.

To cater to diverse customer requirements, Gaoqiang has engineered a revolutionary polycarboxylate-based superplasticizer (slump retaining) that excels in both slump retention and dispersibility. Grounded in the principles of slump loss mitigation in fresh concrete, this product draws insights from post-addition superplasticizer techniques and the study of reactive polymers. By altering admixture adsorption behaviors and crafting a tailored polymer structure, this superplasticizer presents a chemical makeup akin to graft copolymer admixtures, boasting elongated graft side chains, reduced carboxyl group ratios, and strategically positioned ester cross-linking within the copolymer framework.

The copolymer molecules' extended polyethylene glycol side chains create steric hindrance, effectively decelerating the physical clumping of cement particles. A modest amount of polymer, adsorbed at the cement-water interface, ensures a level of dispersibility. In an alkaline cement environment, the copolymer's ester cross-links gradually hydrolyze, releasing low molecular weight copolymers with dispersant properties into the system. This replenishment counterbalances superplasticizer loss due to C3A and C4AF, maintaining a critical micelle state and safeguarding against significant slump reduction.

Key Performance Characteristics:

(1) Remarkably, no slump loss is observed after 1 hour, with over 80% of the initial slump preserved after 2 hours. This effectively addresses the challenge of rapid slump loss in concrete, fulfilling slump retention demands even under special circumstances.
(2) The concrete exhibits outstanding workability, characterized by high fluidity that facilitates easy pouring and compaction. This property significantly reduces viscosity, making it ideal for pumping applications.
(3) Environmentally conscious, the production process generates no wastewater, waste gas, or waste residue, aligning with green manufacturing principles.
(4) Demonstrates extensive compatibility 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

Adherence to Test Standards:

Compliant with Test Standard: GB8076-2008
The product is available in a transparent or light yellow liquid form.

Concrete's 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

Guidelines for Optimal Usage:

(1) For experimentation, a recommended dosage ranges between 0.5% - 1.0% by weight of cementitious material. Optimal dosage should be ascertained through tests considering cement characteristics, aggregates, etc.
(2) The superplasticizer can either be dissolved in water and combined with other additives or directly incorporated into the concrete mix. It is advisable to add it post-compounding.
(3) Can be synergistically used with various retarders and slump retention agents. However, avoid mixing with fatty acids, naphthalene-based, amino-based, or ion-based additives to prevent performance compromise.
(4) Our expert technical team offers on-site guidance to ensure proper usage and compounding.

Packaging, Storage, and Transportation Details:

1. This liquid product is packaged in 230 kg plastic drums or 1000 Liter IBC tanks. Bulk options are available per customer requirements.

2. The product is non-toxic and non-flammable. Store in a dry place, away 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.