2018 Volume 72 Issue 1 Pages 129-135
The pozzolanic reaction products of fly ash are predominantly C-S-H, C-A-H and C-A-S-H. However, there are few studies on the influence of the glass composition of fly ash on reaction products. In this study, the influence of the composition of fly ash on the pozzolanic reaction products was investigated fundamentally. In the hydrated sample in which fly ash and Ca（OH）2 were mixed, the amount of consumed Ca（OH）2, the amount of combined water and the pozzolanic reaction products were quantified. As a result, it was revealed that the dissolution ratio of Al/Si from fly ash is higher, when the Al/Si ratio in the glass composition of fly ash is 0.33 and over. In addition, fly ash having a higher Al/Si ratio in glass composition tends to produce C2ASH8 with a large amount of combined water.
