



- Công bố khoa học và công nghệ Việt Nam
67
Vật liệu xây dựng
Trương Văn Quyết(1), Nguyễn Ngọc Lân(2), Đào Văn Đông, Phạm Minh Trang
Ảnh hưởng của phụ gia tái sinh đến độ kim lún và nhiệt độ hoá mềm của bitum hỗn hợp
Effects of rejuvenators on penetration and softening point of bitumen blends
Khoa học Giao thông vận tải
2023
2
175-185
1859-2724
The types of bitumen were evaluated including the virgin bitumen, aged bitumen recovered from RAP and bitumen blends (including virgin bitumen, RAP aged bitumen with the recycled binder ratio (RBR) of 0.3, and rejuvenator). Two rejuvenators used in the study are petroleum-based recycling agent (HS1 rejuvenator) and vegetable oil-based (Prephalt@FBK rejuvenator) with different contents from 0%, 4%, 8% and 12%. The obtained results have shown the effectiveness of rejuvenators in restoring the physical properties of bitumen. In order to meet the requirements of the penetration and softening point as bitumen 60/70, the rejuvenator content should be about 9.0% with HS1 and about 5.0% with Prephalt@FBK.
TTKHCNQG, CVv 287