Development of Modified Grouting Material and Its Application in Roadway Repair Engineering

Table 1

Factor level table of orthogonal test.

Level	Water cement ratio	Mass percentage of fly ash	Mass percent of bentonite
	A	B	C
1	0.5 : 1	10%	10%
2	0.8 : 1	20%	15%
3	1.0 : 1	30%	20%