What is re-dispersible polymer powder (RDP)?
Re-dispersible polymer powder is a freeflowing, white powder obtained by spray drying. It serves as a film-forming agent, binder, and adhesive in various construction applications
What are the primary functions of RDP in construction materials?
RDP improves the adhesion, workability, flexibility, water resistance, and durability of construction materials such as mortars, il dhesives, grouts, and self-leveling compounds.
How does RDP enhance the formance of mortar and concrete?
RDP improves mortar and concrete properties by enhancing cohesion, reducing water absorption, increasing flexural strength, improving workability, and minimizing cracking.
Can RDP be used in exterior applications?
Yes, RDP is suitable for both interior and exterior applications. It provides excellent weather resistance, UV stability, and freeze-thaw stability when properly formulated.
hat is the recommended dosage of DP in construction formulations?
The dosage of RDP typically ranges from 1% to 10% by weight of the cementitious material, depending on the specific application requirements and desired rformance characteristics
Is RDP environmentally friendly
Yes, RDP is environmentally friendly as it is based on waterborne polymer emulsions. It complies with environmental regulations and does not contain harmful solvents or l tile organic compounds (VOCs).
w does RDP contribute to reducing rinkage in construction materials?
RDP forms a flexible polymer film during the hydration process, which helps to reduce shrinkage and cracking in cementitious materials by improving the etween particles and increasing overall cohesion.
Can RDP be used in combination with other additives?
Yes, RDP can be used in combination with various additives such as cellulose ethers, superplasticizers, etc. to achieve specific performance requirements in construction materials.
What is the shelf life of RDP?
The shelf life of RDP is typically around 12 months when stored in a cool, dry place in its original packaging. It should be protected from moisture and extreme temperatures to maintain its performance.
s RDP compatible with different types of cement?
Yes, RDP is compatible with various types of cement including Portland cement, blended cements, and specialty cements.