부산대학교 도서관

In this study, we measured combined water of hydration, relative humidity and autogenous shrinkage of cement pastes which were made from various water-cement ratio in order to make it clear the mechanism of autogenous shrinkage of cementitious materials. Relative humidity in hardened cement paste might be determined by the water-void ratio despite of water-cement ratio, and was linearly related with the autogenous shrinkage for the age after about 1 day. This correlation can not be explained by the capirary pressure, but can be explained by change of chemical potential that can be represented as a logarithmic function of relative humidity.