Research on the Application of Prefabricated Load-Bearing Structure in Prefabricated Roadway in Filling Body

Table 1

Strength ratio test scheme.

Cementitious material	Concentration (%)	Cement-to-sand ratio
Cement	70	1 : 3, 1 : 4, 1 : 6, 1 : 8, 1 : 10
Cement : fly ash = 8 : 2	70	1 : 3, 1 : 4, 1 : 6, 1 : 8, 1 : 10
Cement : fly ash = 7 : 3	70	1 : 3, 1 : 4, 1 : 6, 1 : 8, 1 : 10
Cement : fly ash = 6 : 4	70	1 : 3, 1 : 4, 1 : 6, 1 : 8, 1 : 10