Rutting Resistance of Hot Mix Asphalt Containing Coarse Recycled Concrete Aggregates Coated with Waste Plastic Bottles

Table 6

Results of t-test to investigate the effect of CRCA percentage on the Marshall quotient.

CRCA (%)	Dataset	Levene’s test for equality of variances			t-test for equality of means
		Variance	F	Sig.	t	df	Sig.
15	Set 1: untreated	Assumed	0.052	0.831	−9.847	4	0.001
	Set 2: treated	Not assumed			−9.847	3.900	0.001
30	Set 1: untreated	Assumed	0.159	0.710	−17.286	4	0.000
	Set 2: treated	Not assumed			−17.286	3.710	0.000
50	Set 1: untreated	Assumed	0.240	0.650	−21.223	4	0.000
	Set 2: treated	Not assumed			−21.223	3.583	0.000