Investigation of Engineering Properties and Solidification Mechanism of Loess by Sodium Silicate Alkali-Activated Coal Gangue Powder

Table 5

Compression test results for specimens.

Sample	Mean peak load (kN)	Mean peak displacement (mm)	Mean limit displacement (mm)	Compressive strength			Ductility ratio
				Mean; (MPa)	Standard deviations	Coefficient of variation
JC1	7.23	3.061	4.062	0.89	0.035	0.039	1.33
JC2	8.22	3.025	3.506	1.01	0.134	0.133	1.16
JC3	7.77	3.609	4.299	0.95	0.227	0.239	1.19
JC4	11.97	3.231	4.177	1.46	0.325	0.222	1.29
JC5	13.86	2.587	2.981	1.70	0.164	0.097	1.15