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 EFFECTS OF HEATING OPERATION ON VALUE OF BITUMEN PENETRATION
Tác giả hoặc Nhóm tác giả: Thu Thao T. Tran, Teron V. Nguyen
Nơi đăng: THE UNIVERSITY OF DANANG, JOURNAL OF SCIENCE AND TECHNOLOGY; Số: 06(91).2015;Từ->đến trang: 56-59;Năm: 2015
Lĩnh vực: Khoa học công nghệ; 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 mechanical characteristics of the aggregate and bitumen mixture. Based on reviewing existing construction technologies of asphalt pavements combined with the analysis of bitumen heating technologies in tank-trucks and at asphalt mixing plants, we performed a replication of bitumen heating operation in laboratory and testing of penetration factor according to different heating operations. As a result, we proposed suitable extents of heating operation to ensure that the heated bitumen penetration value is acceptable during 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 economic efficiency.
ABSTRACT
Penetration is an important factor of bitumen as an indicator of bitumen viscosity. The change in bitumen viscosity will affect mechanical characteristics of the aggregate and bitumen mixture. Based on reviewing existing construction technologies of asphalt pavements combined with the analysis of bitumen heating technologies in tank-trucks and at asphalt mixing plants, we performed a replication of bitumen heating operation in laboratory and testing of penetration factor according to different heating operations. As a result, we proposed suitable extents of heating operation to ensure that the heated bitumen penetration value is acceptable during 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 economic efficiency.
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