Table A1.

Yellow phosphorus slag + tailing sand 5:5 cemented filling foundation test strength results.

Mass Concentration (%)	Gray-To-Sand Ratio	Cement (kg/m³)	Slag (kg/m³)	Tailing (kg/m³)	R3 (MPa)	R7 (MPa)	R28 (MPa)
70	1/6	190	538.1	538.1	0.78	1.81	2.90
71	1/6	190	554.5	554.5	0.89	2.22	3.06
72	1/6	190	571.3	571.3	1.04	2.58	3.36
73	1/6	190	588.4	588.4	1.16	2.83	3.60
70	1/7	170	548.4	548.4	0.69	1.24	1.98
71	1/7	170	563.9	563.9	0.78	1.38	2.23
72	1/7	170	580.7	580.7	0.89	1.60	2.45
73	1/7	170	597.8	597.8	1.08	1.75	2.48
70	1/8	150	557.9	557.9	0.59	1.05	1.39
71	1/8	150	573.3	573.3	0.67	1.15	1.57
72	1/8	150	590.1	590.1	0.74	1.24	1.95
73	1/8	150	607.2	607.2	0.85	1.32	2.04
70	0.10	130	571.5	571.5	0.50	0.66	1.06
71	0.10	130	587.4	587.4	0.58	0.72	1.12
72	0.10	130	604.2	604.2	0.64	0.80	1.21
73	0.10	130	621.3	621.3	0.71	0.98	1.27