Abstract
The paper presents the report on the use of optimum level of palm oil fuel ash (POFA), ground granulated blast furnace slag (GGBS) and low calcium fly-ash (FA) with manufactured sand (M-sand) to produce geopolymer mortar. Eleven mixtures were prepared with varying binder contents with the POFA content varying between 25% and 100%; the other constituent materials such as fine aggregate and water were kept constant. All the specimens were cured in oven for 24h at 65°C and thereafter kept in room temperature (about 26–29°C) before testing for the compressive strength. The highest compressive strength of about 66MPa was achieved for the mortar containing 30% of POFA and 70% of GGBS with a total binder content of 460kg/m3. The increase in the POFA content beyond 30% reduces the compressive strength. The density reduction after 3days was found negligible.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call