Chemical Composition
Polycarboxylate-based Water Reducers
Setting Time
Normal Setting Time
Type
High-range Water-reducing Agent
Water Reduction Rate
10%-20%
National Standard
ASTM C 494
Transport Package
Drum/IBC/Flexitank
Specification
220KG/1100KG/23tons
Production Capacity
120000tons
Short Description:
Introducing BT-303, the pinnacle in polycarboxylic acid water reducers. This cutting-edge solution is engineered to significantly curb the slump loss of concrete, making it the ideal choice for high water-reducing applications. BT-303 is adept for a range of uses, including pumping concrete, super-fluid self-compacting mixtures, and high-strength, high-performance concrete.
Technical Principle
BT-303 stands out with its innovative molecular structure, which incorporates active ester and amide groups. Within concrete's alkaline environment, ester groups hydrolyze into carboxylic acid, adsorbing onto cement particles to deliver a sustained, slow-release slump protection, ensuring long-lasting workability.
Product Features
(1) Impressive Slump Retention: Retains over 80% of initial slump after 1 hour, tackling rapid slump loss challenges with ease.
(2) Usage Excellence: Workability, hardening, and durability of concrete are all remarkably enhanced.
(3) Unmatched Adaptability: Compatible with Portland, ordinary Portland, slag silicate, fly ash, and pozzolan cements.
(4) Environmentally Conscious: Produced without generating waste, a green choice for construction.
Technical Specifications
| Item |
Standard |
| Appearance | light yellow liquid/colourless |
| Density (g/cm³) | 1.02-1.05 |
| PH Value | 5-7 |
| Solid Contents | 50%±1.5 |
| Alkali content | <0.3% |
| Cement fluidity | 270mm per Hour |
| Water reducing Rate | 15% |
| Pressure bleeding rate | 30% |
| Air Content | 3% |
Applications: High-speed railways, nuclear power, water conservancy, subways, bridges, expressways, harbors, and commercial concrete mixing plants.
How To Use:
- Recommended dosage: 0.6%~1.2% of total cementitious material.
- Can be used solo or mixed with water-reducing mother liquor and retarding agents.
- Compatible with early strength agents and air entrainment agents (testing advised).
- Note: Not to be combined with naphthalene-based reducers.
Packaging options: Available in 220kgs/drum, 23.5 tons/Flexitank, or 1100kg/IBC.
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Frequently Asked Questions
Q1: What is the main advantage of BT-303 compared to standard reducers?
A: BT-303 features a unique molecular structure that provides superior slump retention, maintaining over 80% of workability even after one hour in alkaline environments.
Q2: What is the recommended dosage for concrete mixtures?
A: The standard recommended dosage is between 0.6% and 1.2% of the total cementitious material weight, depending on your specific performance requirements.
Q3: Can BT-303 be used with other admixtures?
A: Yes, it is compatible with early strength agents and air entrainment agents. However, it should never be mixed with naphthalene-based water reducers.
Q4: What types of cement is this product compatible with?
A: It shows excellent adaptability with Portland cement, ordinary Portland, slag silicate, fly ash, and pozzolan cements.
Q5: Is this product environmentally friendly?
A: Yes, BT-303 is produced through a green manufacturing process that generates no waste, making it suitable for sustainable construction projects.
Q6: How should the dosage be calculated when using fly ash or slag?
A: The amount of water-reducing agent should be calculated based on the total sum of all cementitious materials, including active admixtures like fly ash or slag.
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