環境保全・リサイクル（舗装）(1)

[V-464] Development example of workability-improved regeneration additive

〇kazuaki asai¹ (1.NISSIN KASEI CO. LTD)

Keywords:regeneration additive, Recycled asphalt mixture, Workability improvement, Rotary thin film heating test, Compression test, Dynamic Shear Rheometer

The use of the recycled asphalt mixture in the pavement industry is important from the viewpoint of reducing environmental load. However, the workability of the recycled asphalt mixture has problems such as difficulty in tightening, poor workability, and heavy mixture. In order to solve these problems, we worked on the development of a regenerating additive having an effect of improving workability. As a method for evaluating the regenerating additive, the regenerating effect has been conventionally evaluated by a tear test, but the workability of the regenerated asphalt mixture has not been evaluated.