Table A2.

Yellow phosphorus slag + tailing sand 4:6 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	432.9	649.4	0.67	1.69	2.50
71	1/6	190	446.2	669.3	0.79	1.91	2.84
72	1/6	190	459.8	689.7	0.89	2.28	2.89
73	1/6	190	473.7	710.5	0.99	2.43	3.09
70	1/7	170	442.4	663.6	0.61	1.10	1.84
71	1/7	170	455.7	683.5	0.69	1.25	2.02
72	1/7	170	469.2	703.8	0.83	1.37	2.11
73	1/7	170	483.1	724.7	0.91	1.50	2.13
70	1/8	150	450.0	675.0	0.52	0.93	1.29
71	1/8	150	463.2	694.9	0.62	1.02	1.39
72	1/8	150	476.8	715.2	0.65	1.16	1.72
73	1/8	150	490.7	736.0	0.73	1.17	1.80
70	1/10	130	459.5	689.2	0.43	0.61	0.94
71	1/10	130	472.7	709.1	0.53	0.63	1.01
72	1/10	130	486.2	729.4	0.55	0.70	1.07
73	1/10	130	500.1	750.2	0.64	0.89	1.15