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 THE EFFECTS OF HEATING OPERATION ON THE VALUE OF BITUMEN PENETRATION
Tác giả hoặc Nhóm tác giả: Tran Thi Thu Thao, Nguyen Van Teron
Nơi đăng: THE UNIVERSITY OF DANANG, JOURNAL OF SCIENCE AND TECHNOLOGY; Số: 6(91);Từ->đến trang: 56-59;Năm: 2015
Lĩnh vực: Kỹ thuật; Loại: Bài báo khoa học; Thể loại: Trong nước
TÓM TẮT
Penetration is an important factor of bitumen as an indicator of bitumen viscosity. The change in bitumen viscosity will affect on mechanical characteristics of the aggregates and bitumen mixture. From existing construction technologies of used bitumen pavements combined with the analysis of bitumen heating technologies in tank-trucks and at asphalt mixing plants, we conducted the replication of bitumen heating operation in laboratory and testing of penetration factor according to different heating operation. As a result, we proposed suitable extents of heating operation, ensuring the heated bitumen penetration is acceptable under construction. The study results will help construction units select bitumen heating operation easily, contributing to the increase of pavement lifetime, enhancing road level of services, reducing traffic accidents and boosting the economics efficiency.
ABSTRACT
Penetration is an important factor of bitumen as an indicator of bitumen viscosity. The change in bitumen viscosity will affect on mechanical characteristics of the aggregates and bitumen mixture. From existing construction technologies of used bitumen pavements combined with the analysis of bitumen heating technologies in tank-trucks and at asphalt mixing plants, we conducted the replication of bitumen heating operation in laboratory and testing of penetration factor according to different heating operation. As a result, we proposed suitable extents of heating operation, ensuring the heated bitumen penetration is acceptable under construction. The study results will help construction units select bitumen heating operation easily, contributing to the increase of pavement lifetime, enhancing road level of services, reducing traffic accidents and boosting the economics efficiency.
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