Hasil untuk "econ.TH"

Kurosh Kalantar, Atefe Ghamar Talepoor, Mahsa Eshkevar Vakili et al.

Sanqiang Yang, Xiaoyu Zhou, Lusheng Qin et al.

Gilsonite-modified asphalt is one of the hotspots of high-performance modified asphalt research. In this paper, the macroscopic composition and index of gilsonite-modified asphalt are analyzed; gilsonite, matrix asphalt, and modified asphalt with different gilsonite contents were analyzed by high- and low-temperature performance tests, antiaging performance test, four-component test, infrared spectral test, and SEM electroscope scanning test. The results showed that the content of aromatic fraction, colloid, and asphaltene in Buton gilsonite was 3.1%, 95.6%, and 32.9% higher than that of matrix asphalt, respectively. The gilsonite-modified asphalt had better high-temperature performance and antiaging performance. The optimum amount of gilsonite in gilsonite-modified asphalt should be 9%∼15%. The pore structure of gilsonite is more distributed, the surface is rough, which can produce greater cohesion with matrix asphalt, and the compatibility is better.

Th. Kretschmer, Th. Schmidt

M. Rashdan, Amand Faessler, M. Ismail et al.

Th. W. A. EPPINK, J. H. J. VAN DINTEREN

J. P. Wiersma

Donald Williams Mellon

Th. Becker