Research Article

Performance Evaluation and Microstructure Characterization of Metakaolin-Based Geopolymer Containing Oil Palm Ash

Table 2

Mix proportions of geopolymer samples.

Sample nameMK (by weight)OPA (by weight)CaO/SiO2 (molar ratio)SiO2/Al2O3 (molar ratio)Heat curing (h)

Control-11000.012.771
O5-19550.022.88
O10-190100.033.01
O15-185150.043.15

Control-21000.012.772
O5-29550.022.88
O10-290100.033.01
O15-285150.043.15

Control-41000.012.774
O5-49550.022.88
O10-490100.033.01
O15-485150.043.15