Performance Characteristics of Silane Silica Modified Asphalt

Table 2

Penetration and penetration index PI.

Volume	15° penetration	25° penetration	30° penetration	PI
0%	31.7	81.3	133.9	−0.26
0.5%	25.1	82.6	124.4	−1.06
1.00%	29.2	65.1	113.2	0.239
1.50%	27.8	73.3	128	−0.61
2%	25.5	73.9	123.3	−0.867
3.0%	30	74	116.7	0.116
4%	20.1	57.2	90	−0.566
5%	19	64.3	87.1	−0.816