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

Table 11

Range of common oxide combination for geopolymer concrete.

Name of oxide	Minimum (%)	Maximum (%)
SiO2	50	70
Al2O3	20	40
Fe2O3	0	30
CaO	0	20
Al2O3 + SiO2	55	90
Fe2O3 + Al2O3 + SiO2	65	95
CaO + Fe2O3 + Al2O3 + SiO2	80	97