Polycarboxylic Acid Water-Reducing Agent
Properties:
The polycarboxylic acid water-reducing agent is a concrete superplasticizer with good comprehensive properties and a good perspective. It is a composite admixture of polycarboxylate copolymers and other auxiliaries. Compared with similar products, this product is better in performance and performance/cost ratio.
- Low dosage and high range of water reduction efficiency. Its water reduction efficiency can be up to 45%.
- High slump-retaining ability. Slump loss of the concrete is less than 5% in one hour and less than 10% in two hours.
- High compressive strengths. It can increase the compressive strengths of concrete by 50~110% in three days, 40~80% in twenty-eight days, and 30~60% in ninety days.
- Excellent workability. High ability against bleeding or segregation, low resistance, and easy pumping.
- Suitable bubble content, no bad influence on the concrete modulus of elasticity, and good freeze resistance.
- Less than 0.2% alkali content.
- Nontoxic, has no formaldehyde, and no pollution.
- Stable performance, no delamination, no sedimentation for long storage period, no crystallization in low temperature.
- High compatibility, compatibly with many cement types and mineral admixtures, particularly fit for high durability concrete and self-compacting concrete.
Specifications:
| Item | Index |
|---|---|
| Appearance | Light brown liquid |
| Solid content, % | 20±1 |
| Density (20℃), g/ml | 1.09±0.02 |
| Cement paste fluidity (cement base), mm | 250 (W/C=0.29) |
| pH value (1% water solution) | 6~8 |
| Chloride, % | 0.02 Max. |
| Alkali (Na2O+0.658K2O), % | 0.2 Max. |
Usage:
- The dosage is 0.4-2.0% of the cementitious materials by weight, normally 0.4-1.2%. Do concrete mixture tests beforehand.
- No mixture with naphthalene-base water-reducer. Compatibility tests should be conducted beforehand when mixed with other auxiliaries.
- Slump retention is sensitive to water. Therefore, water content should be strictly controlled.
- Concrete cures should be paid attention to.
Applications:
The polycarboxylic acid water-reducing agent is suitable for pumping or normal concrete engineering of C15~C60, particularly for engineering with high durability, fluidity, strong slump retention ability, and aesthetic appearance. In addition, this product is a good choice for high fluidity, self-compacting, and as-cast finish concrete.
Packing and Storage:
Liquid, package in a barrel, storage for one year in a dry and shady place, avoiding frost.
Synonyms:
superplasticizer, Concrete superplasticizer.