Research on Basic Mechanical Properties and Fracture Damage of Coal Gangue Concrete Subjected to Freeze-Thaw Cycles

Table 2

Concrete mix design.

Serial	Group code number	Cement (kg)	River sand (kg)	Coal gangue (kg)	Natural crushed stone (kg)	Water (kg)	Water reducing agent (kg)
1	MG-0	355	696	0	1210	142	7
2	MG-40	355	696	484	726	142	7
3	MG-70	355	696	847	363	142	7
4	MG-100	355	696	1210	0	142	7