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What technical requirements define polymer modified bitumen properties and characterization chart for asphalt or bitumen modification?
Polymer modified bitumen (PMB) properties are defined by several technical requirements, including viscosity, elasticity, temperature susceptibility, and adhesion. Key characterization tests include the Dynamic Shear Rheometer (DSR) for assessing shear modulus and phase angle, the Bending Beam Rheometer (BBR) for low-temperature performance, and the Rolling Thin Film Oven (RTFO) for aging effects. Additionally, the Softening Point and Penetration tests help evaluate the thermal and mechanical properties of PMB, ensuring enhanced performance in various environmental conditions.
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