Study on Mechanical Properties of Cement–Jute Fiber Modified Weak Expansive Soil

Table 4

Shear strength fitting equation at 28 days.

Dosage	7 days		14 days		28 days
	Fitting formula	R^2	Fitting formula	R^2	Fitting formula	R^2
0	y = 0.191x + 38.58	0.994	y = 0.191x + 38.58	0.994	y = 0.191x + 38.58	0.994
2% + 0.1%	y = 0.223x + 103.28	0.996	y = 0.229x + 120.64	0.996	y = 0.232x + 145.87	0.988
2% + 0.3%	y = 0.237x + 118.01	0.998	y = 0.242x + 136.61	0.982	y = 0.243x + 160.77	0.986
2% + 0.5%	y = 0.238x + 142.05	0.998	y = 0.247x + 155.87	0.989	y = 0.249x + 180.35	0.991
2% + 0.7%	y = 0.236x + 132.75	0.996	y = 0.246x + 148.78	0.995	y = 0.247x + 177.51	0.982
4% + 0.1%	y = 0.245x + 108.12	0.995	y = 0.252x + 128.76	0.983	y = 0.270x + 152.84	0.985
4% + 0.3%	y = 0.250x + 130.35	0.999	y = 0.260x + 144.05	0.988	y = 0.282x + 169.85	0.993
4% + 0.5%	y = 0.258x + 149.34	0.996	y = 0.269x + 165.56	0.983	y = 0.286x + 188.46	0.997
4% + 0.7%	y = 0.254x + 141.54	0.994	y = 0.274x + 154.45	0.989	y = 0.275x + 184.32	0.995
6% + 0.1%	y = 0.280x + 138.71	0.991	y = 0.281x + 165.51	0.997	y = 0.304x + 201.13	0.992
6% + 0.3%	y = 0.286x + 159.80	0.991	y = 0.304x + 179.12	0.993	y = 0.314x + 219.28	0.997
6% + 0.5%	y = 0.290x + 183.11	0.994	y = 0.309x + 201.98	0.991	y = 0.318x + 241.74	0.999
6% + 0.7%	y = 0.279x + 176.62	0.992	y = 0.307x + 192.30	0.994	y = 0.301x + 235.34	0.992
8% + 0.1%	y = 0.306x + 202.88	0.989	y = 0.310x + 228.92	0.987	y = 0.344x + 260.88	0.999
8% + 0.3%	y = 0.308x + 224.78	0.999	y = 0.311x + 247.98	0.993	y = 0.363x + 275.84	0.999
8% + 0.5%	y = 0.310x + 250.08	0.999	y = 0.325x + 266.42	0.986	y = 0.374x + 298.29	0.990
8% + 0.7%	y = 0.308x + 240.41	0.996	y = 0.302x + 261.60	0.986	y = 0.353x + 292.73	0.990