Effect of Crumb Rubber on the Moisture and Rutting Behavior of Low-Energy Asphalt and Determining the Best Flow Number Model

Table 10

Multiple comparisons for all models at the stress level of 310 kPa.

(I) group	(J) group	Std. error	Mean difference (I-J)	Sig.	95% Confidence interval
					Lower	Upper
Three-stage model	Fnest model	648.30841	548.40000	0.412	−842.0832	1938.8832
	Francken model	648.30841	435.60000	0.513	−954.8832	1826.0832
	Stepwise model	748.60207	−816.20000	0.294	−2421.7918	789.3918
Fnest model	Three-stage model	648.30841	−548.40000	0.412	−1938.8832	842.0832
	Francken model	648.30841	−112.80000	0.864	−1503.2832	1277.6832
	Stepwise model	748.60207	−1364.60000	0.090	−2970.1918	240.9918
Francken model	Three-stage model	648.30841	−435.60000	0.513	−1826.0832	954.8832
	Fnest model	648.30841	112.80000	0.864	−1277.6832	1503.2832
	Stepwise model	748.60207	−1251.80000	0.117	−2857.3918	353.7918
Stepwise model	Three-stage model	748.60207	816.20000	0.294	−789.3918	2421.7918
	Fnest model	748.60207	1364.60000	0.090	−240.9918	2970.1918
	Francken model	748.60207	1251.80000	0.117	−353.7918	2857.3918