PCE Bt-302 Slump Retention Polycarboxylate Superplasticizer, Enhanced Workability for Concrete

• 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
• Package Size: 6058.00cm * 2438.00cm * 2591.00cm
• Package Gross Weight: 22000.000kg

Product Description

BT-302 Polycarboxylate Superplasticizer (Slump Retaining) Solid 50% Liquid

Introducing the BT-302 Polycarboxylate Superplasticizer (slump retaining), an innovative advancement in the world of concrete admixtures. Created by the pioneering team at Shandong Gaoqiang New Material Technology Co., Ltd., this state-of-the-art superplasticizer is derived from a cutting-edge polycarboxylate mother liquor. Enhanced with imported additives, the synthesis benefits from technical collaboration with top-tier polyether manufacturers, resulting in a novel catalyst and meticulously engineered control system based on a scientifically crafted molecular structure.

Shandong Gaoqiang caters to diverse customer requirements with its newly developed polycarboxylate-based superplasticizer (slump retaining). This breakthrough product not only retains slump but also ensures remarkable dispersibility. Grounded in the science of slump loss in fresh concrete, it leverages superplasticizer post-addition methods and insights into reactive polymers. By altering admixture adsorption behavior and tailoring polymer structures, it mimics graft copolymer admixtures, featuring extended graft side chains, reduced carboxyl group ratios, and strategic ester cross-linking points.

The copolymer structure of BT-302 boasts elongated polyethylene glycol side chains that create a steric hindrance effect, slowing the cement particles' physical aggregation. A slight polymer presence at the cement-water interface ensures optimal dispersibility. The ester cross-links within the copolymer hydrolyze in the alkaline cement milieu, gradually releasing low molecular weight copolymers that enhance dispersing functionality. This action replenishes the superplasticizer consumed by C3A and C4AF, maintaining it in a vital micelle state, thus averting significant slump loss.

Performance Characteristics:

(1) Experience no slump loss after 1 hour, with over 80% of the initial slump retained after 2 hours. This effectively conquers the challenge of rapid slump loss in concrete, ensuring slump retention even under challenging conditions.
(2) Delight in the superior workability of concrete with high fluidity, making pouring and compacting a breeze. This feature significantly reduces concrete viscosity, making it ideal for pumping applications.
(3) Environmentally conscious production ensures no waste water, waste gas, or waste residue, promoting a sustainable and eco-friendly manufacturing process.
(4) Exhibits remarkable adaptability to various types of cement, including Portland cement, ordinary Portland cement, slag Portland cement, fly ash cement, *** ash cement, and diverse 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 product is available in a 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 experimentation, a dosage of 0.5% - 1.0% by weight of cementitious material is recommended. Conduct tests to determine the optimal dosage based on specific cement and aggregate characteristics.
(2) The superplasticizer can be dissolved in water and combined with other additives or directly added to the concrete mix. For best results, add after compounding.
(3) Compatible with various retarders and slump retention agents. However, avoid mixing with fatty acids, naphthalene-based, amino-based, or ion-based additives to maintain performance integrity.
(4) Our expert technical team offers on-site guidance to ensure correct usage and effective compounding.

Packing, Storage, and Transport

1. Packaged as a liquid in plastic drums (230 kg/drum) or 1000 Liter IBC tanks. Bulk options available to meet customer requirements.

2. Non-toxic and non-flammable, this product should be stored in a dry place, away from direct sunlight.

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