Prediction of Compressive Strength of Geopolymer Concrete Based on Support Vector Machine and Modified Cuckoo Algorithm

Table 1

Analysis results of main chemical components of coal gangue (%).

Composition	Content (%)
SiO2	65.09
Al2O3	16.86
K2O	2.67
CaO	2.07
MgO	1.98
Fe2O3	6.15
Na2O	1.64
TiO =	0.74
S	0.53
Loss on ignition	1.49