Diametal Compression Characteristics of Cohesive Ash Powder Pellets at High Temperature

Abstract

The increase in the cohesive properties of fly ash under elevated temperature conditions up to 1123 K, was investigated by a diametral compression test of ash powder pellets. Under conditions of relatively low temperatures (below 1000 K), the strength of ash powder pellets increases gradually in proportion to temperature. A remarkable increase in strength of the powder pellets is observed in the high temperature range above 1123 K. At these high temperatures, plastic deformation (during a diametal compression test) and enhancement in the time dependent on increase in fracture load of ash powder pellets is observed.