Properties and Engineering Applications of a New Goaf Grouting Filling Material

Table 7

Analysis atomic percentage of elements at different points.

Point	C	O	Mg	Al	Si	Ca	Na	Fe
1	1.60	67.11	0.33	14.61	15.65	0.34	0.14
2	3.21	58.33	0.52	16.43	18.04	1.27	0.53	1.26
3	2.25	31.23		5.05	7.43	54.04
4	5.79	32.81		28.54	26.00	6.86