Experimental Study of Reinforcing Broken Gangues by Colloid Cement Slurry

Table 1

Data of colloid cement without uniaxial compressive strength.

Age	Number	Strength (MPa)	Longitudinal strain (%)	Elastic modulus (GPa)
7	A1-1	6.9071	0.6877	—
	A1-2	10.5041	0.7356	1.1866
	B1-1	10.0710	0.6942	1.3766
	B1-2	10.0554	0.4566	1.7840
	C1-1	15.7320	0.9510	2.0016
	C1-2	16.8128	0.8879	2.5621
14	A2-1	15.7783	0.7469	2.1862
	A2-2	18.9849	0.6857	3.0946
	B2-1	15.7581	0.9371	2.0306
	B2-2	16.0919	0.7338	2.3040
	C2-1	16.3267	1.0040	2.2067
	C2-2	16.5436	0.9705	2.1510
21	A3-1	21.8546	0.8446	2.9703
	A3-2	25.0356	0.7630	3.3304
	B3-1	17.7148	1.1740	2.2601
	B3-2	17.9877	1.1931	2.2901
	C3-1	18.4645	1.0217	2.3318
	C3-2	18.5407	0.9700	2.3780
28	A4-1	24.0530	0.8660	3.2201
	A4-2	27.3693	1.0640	3.1979
	B4-1	27.7923	1.0242	3.3211
	B4-2	24.7682	0.8689	3.1243
	C4-1	25.0289	0.7826	3.3112
	C4-2	25.1592	0.8320	3.0455