Effect of Fly Ash and Cement on the Engineering Characteristic of Stabilized Subgrade Soil: An Experimental Study

Table 6

The effect of adding cement and fly ash on the UCS value.

Mix proportion	1-day UCS (kPa)	7-day UCS (kPa)	14-day UCS (kPa)
Natural soil	86.880	—	—
5% FA+2% OPC	95.314	113.86	123.683
10% FA+4% OPC	105.48	114.85	133.80
15% FA+6% OPC	120.58	136.42	151.515
20% FA+8% OPC	124.47	146.11	167.75