Effect of Coal Ash Properties on Compressive Strength of Bottom Ash-Based Geopolymer Concrete

摘要

This paper presents the results of an experimental study on the behavior of bottom ash-based geopolymer concrete (GPC) cured at ambient temperature. A total of five bathes of bottom ash-based GPC were manufactured. The influence of the particle size and chemical composition of bottom ash on the compressive strength of GPC was investigated. The results indicate that the investigated parameters significantly affect the 28-day compressive strength of bottom ash-based GPCs. It is also found that the strength gain of ambiently-cured coal ash-based GPCs continues beyond the concrete age of 28 days.