Study on Mechanical Properties of PET Fiber-Reinforced Coal Gangue Fine Aggregate Concrete

Table 1

Concrete mix proportion.

Specimen	Replacement rate (%)	Cement (kg·m^-3)	Water (kg m^-3)	Coarse aggregate (kg·m^-3)	Fine aggregate		Water reducer (kg·m^-3)
					River sand (kg·m^-3)	Coal gangue (kg·m^-3)
CGC-0	0	379.6	205	1151.31	619.9	0	1.63
CGC-1	10	379.6	205	1151.31	619.9	59.56	1.63
CGC-2	20	379.6	205	1151.31	619.9	119.13	1.63
CGC-3	30	379.6	205	1151.31	619.9	178.69	1.63
CGC-4	40	379.6	205	1151.31	619.9	238.25	1.63
CGC-5	50	379.6	205	1151.31	619.9	297.81	1.63