Can you mix cement fondue with Portland cement?

Yes, you can mix cement fondue with Portland cement, but it's important to consider the intended use and desired properties of the final product. Cement fondue is typically a fast-setting, high-performance material, while Portland cement is more commonly used for general construction. Mixing them may alter the setting time and strength characteristics, so it's advisable to conduct tests to ensure compatibility for your specific application. Always follow safety guidelines and manufacturer's recommendations when working with cement products.