Table 2: Sieve analyses and fineness modulus (FM) for URHA and natural sand.

URHANatural sand Reference
ASTM C33 (%)
Sieve size (mm)Percentage of passing (%)Sieve size (mm)Percentage of passing (%)

4.75 (#4)99.34.75 (#4)97.895–100
2.36 (#8)84.62.36 (#8)75.980–100
1.18 (#16)65.41.18 (#16)55.350–85
0.6 (#30)50.80.6 (#30)40.525–60
0.3 (#50)29.30.3 (#50)21.35–30
0.15 (#100)11.90.15 (#100)8.30–10

FM2.6FM3.0