Table 1.

Geotechnical properties of tested materials.

Material	Compaction Method						ρs (g/cm3)
	Standard Proctor			Modified Proctor
	wopt (%)	ρd max (g/cm3)	e (–)	wopt (%)	ρd max (g/cm3)	e (–)
grSa	9.00	2.020	0.31	8.50	2.085	0.27	2.65
grSa + 1.5%C	8.90	2.120	0.25	8.40	2.130	0.25	2.66
grSa + 3.0%C	8.80	2.140	0.24	8.30	2.150	0.24	2.66
grSa + 4.5%C	8.70	2.170	0.23	8.10	2.176	0.23	2.67
grSa + 6.0%C	8.50	2.182	0.23	7.90	2.190	0.22	2.68

C—cement addition.