Table 4 Separation test results of modified asphalt. (Three equal samples are tested for softening point; the data in the table are average values and numbers in the parentheses show the standard deviation).

From: Research on the synergistic modification effect and the interface mechanism of GO/SBS compound-modified asphalt based on experiments and molecular simulations

Parameter

70A

70A + 0.2%GO

70A + 5%SBS

70A + 5%SBS + 0.2%GO

Top section (°C)

49.0 (0.082)

49.2 (0.047)

62.7 (0.245)

72.5 (0.125)

Bottom section (°C)

48.8 (0.082)

49.9 (0.163)

60.3 (0.125)

71.0 (0.125)

Softening point difference (°C)

0.2

0.7

2.4

1.5

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