Expansive Agent
The pale yellow to yellow powder forms uniform and dense micropores in an alkaline environment, enabling the material to expand slightly during the plastic stage and preventing shrinkage due to moisture evaporation .
The volume will not shrink after hardening, and it will not adversely affect the strength . The product is odorless, safe and environmentally friendly.
Scope of application
This product is widely applicable to various cement-based grouting, mortar and concrete systems, and is especially suitable for building materials used in filling or grouting scenarios, such as grouting agents (materials), grouting materials and various grouting materials.
Performance index
Performance indicators | Product Data |
Color/Appearance | Yellow powder |
Bulk density (kg / m³) | 350~500 |
pH (1% aqueous solution) | 7.0 ~ 9.0 |
24-hour free expansion rate , % | 2.5 |
Recommended dosage
The recommended dosage of this product in various systems is 0.1 to 0.5 ‰ of the system weight. The optimal dosage needs to be determined through testing.
Packaging and storage
- This product is packaged in paper bags, 25kg/bag;
- The product must be sealed promptly after opening and use;
- This product is thermoplastic and should be stored away from pressure in high-temperature environments, otherwise it may easily cause clumping;
- Store in a cooland dry place at 0~40℃, sealed. The storage time should not exceed 12 months.
Technical support
- The company’s technical personnel provide consulting services in the preparation process of various formula systems;
- Technology tracking, in conjunction with the long-term optimization of the formulation system.

