The reason why it is recommended to still use the segregation test as a method to evaluate the storage stability of SBS modified bitumen is that the segregation test method has the following advantages and characteristics:

1. Simplicity: The segregation test method is simple to operate. It only needs to put the modified bitumen into an aluminum tube or a glass tube, and take a sample to measure the softening point after placing it under high temperature conditions for a certain period of time. Compared with other methods, the operation process of the segregation test method is simpler and does not require complex instruments and equipment and complex operation steps.

2. Comprehensiveness: The segregation test method combines multiple physical properties to evaluate the storage stability of modified bitumen, such as softening point, ductility, elastic recovery, etc. By comprehensively considering these indicators, the storage stability of modified bitumen can be evaluated more comprehensively.

3. Reliability: The segregation test method is a proven and widely used evaluation method that has been widely adopted at home and abroad. The results evaluated by the segregation test method can more accurately reflect the storage stability of modified bitumen.

4. Practicality: The equipment and reagents required for the segregation test method are relatively simple, low cost, and easy to implement. This makes the segregation test method easier to promote and apply in engineering practice.

In summary, the segregation test method has the advantages and characteristics of simplicity, comprehensiveness, reliability and practicality. Therefore, it is recommended to still use the segregation test as a method to evaluate the storage stability of SBS modified bitumen.

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