FIRE RESISTANCE OF FLY ASH - POLYESTER GEOPOLYMER COMPOSITE

Abstract

The development of PLTU using coal in Indonesia results the increasing of fly ash waste. The waste should be used carefully to eliminate environment pollution. The objective of this research is to investigate the fire resistance of the fly ash – polyester geopolymer composite. The fly ash-polyester composite was made by using a press mold method for 0, 30, 40, 50, 60, and 70 % of fly ash content (w/w). The fire resistance test was prepared by according to JIS K-6911 standard for 2 minutes of burning test time. The analysis in this research covers fire resistance, heat release, composite mass burned and smoke test. The fire resistance increases with the increasing of fly ash content. The longest burning time of the composite (42,92 second) occurs on the composite containing the highest fly ash content (70% of fly ash content). The heat release decreases with the increasing of fly ash content. The highest heat release (88,67%) occurs on the composite without fly ash. The least mass of the composite burned (12,34%) occurs on the composite containing 30% of fly ash content. The mouses smoked by smoke resulted of burning composite for 2 minutes indicate no difference behavior