Application of Palm Oil Fuel Ash as Source Material for Geopolymer Concrete Production
Créateur:
YabJonOru
Éditeur:
Int
Hôte:
This experimental study examined Palm Oil Fuel Ash (POFA) application as geopolymer binder source material for concrete production. Palm oil residues where sourced from Ogbia in Bayelsa State, cleaned and calcined in an uncontrolled temperature, ground, and sieved through 75 microns BS sieve. Chemical analysis carried out on the POFA using X-ray fluorescence. Sodium silicate and sodium hydroxide mixture in a ratio of 2:5 was used as an activator. Tests carried out on the concrete so produced include compressive, splitting tensile and flexural strengths at 7, 14, 21 and 28 days. It was shown from the results that, combined acidic oxide of POFA was 72.61% which can be grouped under class F pozzolan. The utmost compressive, splitting tensile and flexural strengths obtained for 28 days are 25.23N/mm2, 5.13N/mm2, 3.14 N/mm2 respectively. The strength increased with increase in curing days. Hence, using POFA as source material for geopolymer concrete production had good strength development.
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