Testing and Evaluation of Hard Sandstone Aggregate in Hot Mix Asphalt

Table 15

Phase angle of the hard sandstone asphalt mixture AC-13C at 20°C.

Frequency (Hz)	Non-freeze-thaw groups (MPa)	Freeze-thaw groups (MPa)	Percentage (%)
10	21.1	22.3	105.7
1.0	26.2	28.1	107.3
0.1	29.4	32.4	110.5