Mixture Ratio Design Optimization of Coal Gangue-Based Geopolymer Concrete Based on Modified Gravitational Search Algorithm

Table 10

Mix design optimization of different strength grades coal gangue-based geopolymer concrete based on Chebyshev mapping.

Strength grade	Cement (kg/m^3)	Fly ash (kg/m^3)	Coal gangue (kg/m^3)	Sand (kg/m^3)	Pebble (kg/m^3)	Water reducing agent (kg/m^3)	Water glass (kg/m^3)
C30	256.61	186.34	408.24	707.63	834.31	3.10	54.4
C35	264.45	229.77	357.08	694.86	818.23	3.30	84.2
C40	294.65	304.98	334.95	636.22	804.35	3.30	86.6
C45	334.46	363.78	352.38	597.60	698.65	3.80	91.3
C50	348.50	407.66	310.56	578.30	654.68	4.20	94.9