Experimental Research on Microstructure and Physical-Mechanical Properties of Expansive Soil Stabilized with Fly Ash, Sand, and Basalt Fiber

Table 3

Growth rate of unconfined compressive strength of stabilized soil with 0% basalt fiber.

Sand content (%)	Fly ash content (%)
	0	5	10	15	20
0	0	31.97	86.30	38.36	−2.71
8	61.13	96.08	127.71	66.31	27.46
16	31.89	41.83	92.64	36.95	7.83
24	−9.20	22.59	57.84	23.73	−8.28