Length change of C-S-H of variable composition immersed in aqueous solutions

摘要

The dimensional stability of calcum silicate hydrate phases (C-S-H), (with varying C/S ratios) in saturated-lime water, distilled water and a methylene solution was investigated in this study. Two distinct regions of C/S ratio exhibited maxima in length change versus C/S ratio curves generated from results in all three test solutions. Differences in behaviour in all three solutions were minimal. It would appear that the C-S-H nanostructures that quickly form in methylene solution are comparatively stable in aqueous media. Possible mechanisms for the length change behaviour are discussed.