Table 2 Characteristics of the mixed subgrade constituents.
From: Geoenvironmental use of CaCo3 sludge in subgrade soil for a greener sugar industry
Materials | Type | Characteristics |
|---|---|---|
Ordinary Portland cement, (OPC) | Type-I | Specific gravity, Gs = 3.16; Specific surface = 3,150 cm2/g |
Calcium carbonate sludge, (CaCO3) | Oxide powder | Specific gravity, Gs = 2.72; Particles size = 1–10 μm, specific surface area of 0.228 m2/g |
Unqualified crushed rocks | Well graded | The maximum size, Dmax = 45 mm No. 200 sieve passing perc. = 20% Liquid Limit, LL = 16% Plasticity Index, PI = 12 |
Water | Tap water | pH = 7 |
