Pavement and Noise Reduction Performance of Open-Graded Asphalt Friction Course Improved by Waste Tire Crumb Rubber

Table 6

Results of mixture strength correlation degree and correlation coefficient.

Item	Correlation coefficient								Correlation degree
Crumb rubber	1	0.712	0.774	0.434	0.333	0.369	0.410	0.622	0.582
Asphalt	1	0.712	0.338	0.514	0.802	0.650	0.410	0.622	0.631
Gradation	1	0.352	0.774	0.514	0.802	0.369	0.553	0.622	0.623