Table 1.

Dry particle density and water absorption.

Material	Dry Particle Density (g/cm3)	Water Absorption (%)
Natural aggregate (NA-0/3)	2.62	1.78
Natural gravel (GN-5/7)	2.43	2.64
Natural gravel (GN-4/12.5)	2.47	3.14
Recycled aggregate (R1)	2.21	7.43
Recycled aggregate (R2)	2.17	9.03