In this study, the effects of raw material and alkali activator properties on compressive strength geopolymer pastes were investigated. Class F fly ash (FA) blast furnace slag (S) used as materials in paste samples. The (100U, 80U-20Y, 60U-40Y, 40U-60Y, 20U-80Y, 100Y) activated using Na2SiO3 NaOH (8, 10, 12 14 M). All samples cured under laboratory conditions until test day. values 7 28th days ...

The effect of organic phenol on the compressive and flexural strength of a metakaolin based geopolymer is studied. It was found that 12 wt% phenol resins can increase the compressive and flexural strength by 30% and 65% respectively. In addition, the reinforcing effect of phenol resin is higher in Na-PS and Na-PSS type geopolymers rather than Na-PSDS. Two distinct endothermic peaks were detecte...

Pada beberapa tahun terakhir, pertumbuhan industri pengolahan material non fero seperti nikel, alumumium maupun tembaga berkembang sangat pesat. Hal ini secara tidak langsung berdampak terhadap peningkatan limbah metalurgi hasil tersebut. Di Indonesia, slag logam diantarannya Nikel Pic Iron (NPI) merupakan salah satu yang belum digunakan optimal. Disisi lain NPI diketahui mengandung unsur-unsur...