Compression Mechanical Properties and Constitutive Model for Soft–Hard Interlayered Rock Mass

Table 1

Proportioning test design.

Group	Mass ratio of cement, gypsum, and silica sand	Water–cement ratio	Uniaxial compressive strength (MPa)
1	1 : 0.1 : 0.9	0.50	55.7
2	1 : 0.1 : 0.7	0.40	53.6
3	1 : 0.1 : 0.8	0.48	52.2
4	1 : 0.1 : 0.9	0.60	47.4
5	1 : 0.2 : 1	0.55	42.2
6	1 : 0.2 : 1	0.60	39.6
7	1 : 0.3 : 0.4	0.46	33.9
8	1 : 0.4 : 0.8	0.60	17.7
9	1 : 0.3 : 1.2	0.60	21.7
10	1 : 0.4 : 0.7	0.60	16.3