Study on the Strength and Yield Behaviors of Modified Silty Clay

Table 1

Basic physical parameters of raw test materials [19].

Property	Silty clay	Red Pisha sandstone	Carbide slag
Liquid limit, (%)	28.35	29.03	41.83
Plastic limit, (%)	13.04	19.60	32.01
Plasticity index,	15.31	9.43	9.82
Maximum dry density, (g/cm^3)	1.78	1.96	1.90
Optimum moisture content, (%)	16.16	12.00	13.40
Specific surface area (m^2/g)	11.46	3.39	10.30
Particle size distribution (%)
Clay (<5 μm)	9.61	0.00	3.83
Silt (5 μm to75 μm)	83.31	6.64	60.67
Sand (>75 μm)	7.08	93.36	35.50