Research on Electrical Conductivity and Mechanical Properties of Ecological Concrete Prepared from Mine Solid Waste

Table 11

Mechanical properties and electrical conductivity of nanographite–cupric nickel sulfate ore (G9 groups).

No.	Compressive strength (unit MPa)			Flexural strength (unit MPa)			Electrical conductivity (unit Ω·cm)
	7d	14d	28d	7d	14d	28d	7d	14d	21d	28d
G9C20	12.13	17.4	19.9	4.45	4.52	5.44	1,260	4,240	4,980	5,590
AG9C20	17.34	19.47	20.23	5.61	5.63	5.69	1,900	2,320	2,740	5,160
UG9C20	18.02	24.55	26.94	4.65	4.75	5.74	1,240	2,440	5,620	5,840
AUG9C20	19.14	23.28	27.02	4.73	4.69	4.79	2,010	2,490	2,700	4,700
G9C40	20.33	21.76	22.75	4.42	5.23	5.5	1,200	2,370	2,480	4,900
AG9C40	20.34	21.37	25.63	4.52	5.38	5.65	1,700	1,910	2,670	3,570
UG9C40	20.56	25.23	28.56	4.75	5.27	5.79	1,840	3,280	3,690	4,650
AUG9C40	22.38	25.63	28.74	5.18	5.76	6.18	1,510	1,700	3,270	4,420
G9C60	18.42	20.43	24.57	4.47	4.56	5.21	1,320	2,120	2,620	3,370
AG9C60	18.99	21.08	25.84	4.64	4.71	5.68	1,450	1,550	2,190	3,850
UG9C60	19.98	21.66	28.87	4.64	4.72	5.73	1,210	1,450	2,150	3,250
AUG9C60	20.08	27.97	30.64	5.61	5.77	6.78	1,260	2,350	2,850	3,690