Development and Field Test of New Environmentally Friendly Water-Rich Sand Grout Material

Table 2

Compressive strengths under different ages.

Fly ash content (%)	W : M	Compressive strength (MPa)
		1 h	5 h	12 h	1 d	3 d	7 d	14 d	28 d
10	0.8 : 1	0.2	2.3	3.24	4.41	4.87	11.73	13.15	14.71
	1 : 1	0.06	1.96	3.07	3.96	4.48	10.92	12.62	13.71
	1.2 : 1	0.03	1.64	2.59	3.62	3.92	10.39	11.35	12.81
15	0.8 : 1	0.74	2.84	3.48	5.31	7.01	11.58	14.79	16.71
	1 : 1	0.59	2.49	3.24	5.05	6.71	11.48	14.35	16.32
	1.2 : 1	0.38	2.18	3.09	4.81	6.41	10.95	12.79	15.52
20	0.8 : 1	1.05	3.15	4.35	6.62	7.82	14.71	17.52	18.39
	1 : 1	0.84	2.74	4.09	6.48	7.79	13.96	15.92	18.01
	1.2 : 1	0.75	2.55	3.88	5.91	7.39	13.36	15.51	17.39
25	0.8 : 1	0.76	2.86	3.87	5.43	7.13	11.7	14.91	16.83
	1 : 1	0.55	2.48	3.27	4.97	6.63	11.4	14.27	16.24
	1.2 : 1	0.33	2.13	2.92	4.76	6.36	10.9	12.74	15.47
30	0.8 : 1	0.29	2.39	3.81	5.5	7.2	11.77	14.98	16.9
	1 : 1	0.18	1.98	3.01	4.91	6.57	11.34	14.21	16.18
	1.2 : 1	0.03	1.68	2.59	4.73	6.33	10.87	12.71	15.44