The construction industry is constantly evolving, driven by the need for materials that enhance durability, efficiency, and sustainability. Among the critical innovations in this field is the PC-826 Slump Retention Polycarboxylate Superplasticizer, a cutting-edge additive designed to optimize concrete performance. Developed by Shijiazhuang Yaguan New Material Technology Co., Ltd., this product represents a significant advancement in concrete technology, offering unparalleled benefits for modern construction projects.
Product Overview
PC-826 is a high-performance water reducer formulated through a specialized spray-drying process using modified polyether polymerization. This powder-based superplasticizer is engineered to maintain the workability of concrete over extended periods, making it ideal for applications where prolonged slump retention is critical. Its advanced formulation ensures enhanced dispersion, durability, and environmental safety, aligning with global trends toward sustainable construction practices.
Key Features and Benefits
The PC-826 Slump Retention Polycarboxylate Superplasticizer excels in several critical areas, making it a preferred choice for construction professionals:
- High Plasticity: With exceptional slump retention, PC-826 significantly prolongs the construction operation time, reducing the temporal loss of concrete flow. This feature is particularly valuable in large-scale projects where continuous pouring is required.
- High Dispersion: The product's excellent dispersion ability allows for rapid adsorption, minimizing mixing time and improving workability. This efficiency translates to cost savings and enhanced productivity on construction sites.
- High Durability: By enhancing the compaction of the hardened slurry, PC-826 improves the shrinkage and creep performance of concrete. This results in reduced cracking and long-term structural integrity, ensuring the longevity of construction projects.
- Green Environmental Protection: Free from harmful substances, PC-826 is safe for both workers and the environment. Its eco-friendly formulation aligns with the growing demand for sustainable construction materials.
Technical Specifications
| Order Number | Test Item | Specification |
|---|---|---|
| 1 | Appearance and Color | White powder |
| 2 | Water Content (%) | ≤5.0 |
| 3 | Effective Content (%) | ≥95 |
| 4 | Density (g/L) | 500–700 |
| 5 | pH Value (10% Aqueous Solution, 20℃) | 6–8 |
| 6 | Chloride Ion Content (%) | ≤0.1 |
| 7 | Base Content (%) | ≤3.0 |
| 8 | Water Reduction (%) | ≥25 |
| 9 | Air Content (%) | ≤6.0 |
| 10 | Setting Time Difference (min) | Initial Set >+90 |
Applications
PC-826 is versatile, suitable for a wide range of concrete systems, including:
- All Portland cement-based concrete systems
- Concrete systems requiring extended workability
- High-performance concrete (HPC) and ultra-high-performance concrete (UHPC)
- Specialized applications such as precast concrete, tunnel lining, and marine structures
Its ability to maintain slump retention makes it ideal for projects with complex geometries or challenging environmental conditions, such as high-temperature climates or long-distance transportation of concrete.
Usage Instructions and Precautions
To maximize the benefits of PC-826, follow these guidelines:
- Mixing Method: The product can be mixed with water and added to concrete simultaneously. For optimal results, it is recommended to mix with water first before adding to the concrete.
- Dosage: The recommended dosage ranges from 0.05% to 0.20% of the cementitious material. Adjustments should be made based on specific project requirements and raw material properties.
- Compatibility: PC-826 should be used in conjunction with water-reducing agents to achieve the desired performance characteristics.
- Storage: Store in a ventilated, dry place with moisture-proof measures. Avoid direct sunlight and use the product promptly after opening. Seal the container111 tightly after use to prevent moisture absorption and degradation.
Packaging and Storage
PC-826 is packaged in paper-plastic composite bags, with a standard weight of 25 kg per bag. The shelf life is 12 months from the production date. If the product exceeds its shelf life, it must be tested before use to ensure quality and performance. Proper storage conditions are critical to maintaining the product's efficacy and safety.
Company Background
Shijiazhuang Yaguan New Material Technology Co., Ltd. is a leading manufacturer of advanced construction materials, specializing in the development and production of high-performance concrete additives. With a commitment to innovation and sustainability, the company has established itself as a trusted partner for construction professionals worldwide. Their products are designed to meet the highest standards of quality and reliability, ensuring customer satisfaction and long-term value.
Industry Standards and Regulatory Compliance
The development of PC-826 aligns with industry standards for concrete additives, ensuring compliance with national and international regulations. The product's technical specifications are rigorously tested to meet the requirements of NIST (National Institute of Standards and Technology) standards for material performance and safety. NIST's role in establishing measurement standards for construction materials underscores the importance of products like PC-826 in advancing the field of civil engineering.
Conclusion
The PC-826 Slump Retention Polycarboxylate Superplasticizer represents a significant advancement in concrete technology, offering a combination of high performance, environmental safety, and cost-effectiveness. Its ability to enhance workability, durability, and sustainability makes it an essential component for modern construction projects. As the demand for high-quality, eco-friendly materials continues to grow, products like PC-826 will play a crucial role in shaping the future of the construction industry.
References
NIST Standards for Concrete Materials (2025). https://www.nist.gov
