The Master-Curve Band considering Measurement and Modeling Uncertainty for Bituminous Materials

Table 2

The confidence interval constructed for different bitumen using the GS model.

Bitumen type	Confidence level	95%		90%		85%
		Lower	Upper	Lower	Upper	Lower	Upper
U15	δ	10.09	10.32	10.12	10.28	10.13	10.27
	α	−11.37	−10.59	−11.24	−10.72	−11.21	−10.75
	λ	3.52	3.66	3.55	3.64	3.55	3.63
	β	2.18	2.46	2.23	2.41	2.24	2.40
	γ	0.57	0.58	0.57	0.57	0.57	0.57
U70	δ	−7.06	−5.33	−6.92	−5.47	−6.83	−5.56
	α	13.06	14.38	13.17	14.27	13.24	14.20
	λ	2.57	4.37	2.71	4.23	2.81	4.13
	β	0.00	0.14	0.01	0.12	0.01	0.12
	γ	−0.56	−0.42	−0.55	−0.43	−0.54	−0.44
SBS	δ	0.96	1.15	0.98	1.13	0.99	1.12
	α	6.16	6.56	6.19	6.53	6.21	6.51
	λ	0.62	0.69	0.63	0.69	0.63	0.68
	β	0.15	0.20	0.15	0.20	0.16	0.20
	γ	−0.42	−0.38	−0.41	−0.38	−0.41	−0.38