RDP (Re-Dispersible Powder)
-
In construction chemistry, functional additives such as RDP (Re-Dispersible Powder) are commonly used in cement-based products such as mortar, tile adhesive, self-leveling systems, and grouts.
RDPs play a critical role in improving the performance and quality of cement-based products in construction chemistry. These powders are typically made from a mixture of polymers, cellulose ethers, and other additives and are designed to improve the performance of cement-based products.
The main functions of RDPs in cement-based products are as follows:
- Improved workability of cement-based products by reducing the water content required for mixing, which makes the mixture easier to spread and handle.
- Through enhanced adhesion of cement-based products to various substrates, such as concrete, wood, and metal. This is particularly important in tile adhesive applications, where strong adhesion is required to prevent tiles from loosening or falling off.
- RDPs improve the durability of cement-based products by enhancing their resistance to water, abrasion, and impact. This is particularly important in grouts, where opposition to water and staining is crucial.
- Enhanced flexibility of cement-based products, allowing them to withstand movements and deformations without cracking or breaking. This is particularly important in self-leveling compounds, where flexibility is required to ensure a smooth surface.