The technical requirements for an asphalt modified RC body for asphalt or bitumen modification include material compatibility, thermal stability, and mechanical strength. The body must withstand high temperatures without deforming, ensuring effective mixing and application of asphalt. Additionally, it should resist chemical reactions with bitumen, maintain structural integrity under stress, and provide a smooth surface for optimal material flow. Proper insulation and sealing are also essential to prevent contamination and ensure consistent performance during the modification process.