Table 7.

Test results of contact angle between asphalt and three liquids (°).

RAP dosage	Distilled water		Glycerol		Formamide
	With warm-mix agent	Without warm-mix agent	With warm-mix agent	Without warm-mix agent	With warm-mix agent	Without warm-mix agent
0%	95.2	98.4	80.9	81.2	77.03	77.14
30%	96.1	97.5	80.7	81.0	77.18	77.25
40%	95.7	97.2	80.3	80.6	77.11	77.22
50%	95.5	98.2	80.1	80.7	76.35	76.43