Ground Penetrating Radar Assessment of Flexible Road Pavement Degradation

Table 1

Values of α _d, α _u, and Δα.

Section	α d	α u	Δα	Type
(1) LTC-HC-HT	13.42	12.40	1.02	1A
(2) LTC-HC-LT	20.77	21.15	−0.38	1A
(3) LTC-LCu-HT	27.43	28.54	−1.11	1A
(4) LTC-LCu-LT	35.72	34.91	0.81	1A
(5) LCr-HC-HT	19.37	19.82	−0.45	1A
(6) LCr-HC-LT	12.47	11.47	1.00	1A
(7) LCr-LCu-HT	13.25	12.51	0.74	1A
(8) LCr-LCu-LT	11.28	12.29	−1.01	1A
(9) TC-HC-HT	10.12	11.26	−1.14	1A
(10) TC-HC-LT	15.58	16.28	−0.07	1A
(11) TC-LCu-HT	25.56	24.72	0.84	1A
(12) TC-LCu-LT	18.34	17.14	1.20	1A
(13) RC-HC-HT	10.48	7.12	3.36	2B
(14) RC-HC-LT	14.38	11.27	3.11	2B
(15) RC-LCu-HT	18.36	22.68	−4.32	3B
(16) RC-LCu-LT	16.25	23.72	−7.47	3B
(17) F-HC-HT	13.95	10.47	3.48	2B
(18) F-HC-LT	26.27	22.12	4.15	2B
(19) F-LCu-HT	15.45	18.32	−2.87	3B
(20) F-LCu-LT	21.75	27.49	−5.74	3B