In the application of airport highways, the improvement effect of modified bitumen on pavement performance, especially impact resistance and wear resistance, can be analyzed from the following aspects.

First, the improvement of impact resistance can be evaluated by combining laboratory testing and field monitoring. In the laboratory, impact tests can be used to determine the impact resistance of modified bitumen mixtures. By comparing the impact strength of different types of bitumen (such as SBS modified bitumen, rubber bitumen and TPS modified bitumen) under the same conditions, the advantages of modified bitumen in impact resistance can be intuitively reflected.

In addition, field monitoring can record the impacts suffered by the pavement during actual use (such as heavy vehicles passing, extreme weather, etc.) and analyze the pavement damage, so as to evaluate the actual impact resistance of modified bitumen.

Secondly, the improvement of wear resistance can also be evaluated by combining laboratory and field. In the laboratory, abrasion testers can be used to perform abrasion tests on different types of modified bitumen to determine their wear under certain time and conditions. By comparing the wear results of different modified bitumens, it can be determined which modified bitumen performs better in terms of wear resistance.

In addition, on-site evaluation can analyze the wear resistance of modified bitumen in actual use by regularly checking the wear of the road surface and recording the state of the road surface after a period of use.

Finally, considering the cost-effectiveness of modified bitumen, rubber bitumen has a good application prospect due to its low cost and good performance, especially in terms of impact resistance and wear resistance. By comparing the performance and cost of different modified bitumens, a more scientific decision-making basis can be provided for future highway construction.

In summary, through laboratory testing, on-site monitoring and cost-benefit analysis, the improvement effect of modified bitumen on pavement performance in airport highway applications can be comprehensively evaluated to ensure that its advantages in impact resistance and wear resistance can be fully utilized.

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