Evaluating RLWT Rutting Test of Asphalt Mixtures Based on Industrial Computerized Tomography

Table 1

Statistical table of gray level.

Subimage	Statistical starting point	Statistical end point	Peak value	Average	Standard deviation
Central disk	158	233	211	202	6.86
Second ring	128	240	214	204	7.78
Third ring	121	244	217	206	9.26
Fourth ring	116	255	230	215	9.63
Fifth ring	114	255	236	218	10