A STUDY ON ACCELERATED CARBONATION BEHAVIOR OF SYNTHESES STRATLINGITE

Abstract

The purpose of this study was to understand the carbonation behavior of stratlingite, which was found to be formed in cementitious materials using sintered allophene. Specifically, we investigated the changes in crystal structure, the amount of carbonate formed, and the molecular bonding state of the accelerated carbonated synthetic stratlingite by various analyses. The results suggest that vaterite is formed by carbonation, and that the decrease in crystallinity is related to the disorder of the double tetrahedral layer. In addition, it was shown that water is supplied to the voids in the crystal structure by the release of bound water due to carbonation.