2018 Volume 72 Issue 1 Pages 48-55
The purpose of this study was to examine the influence of the drying conditions, Mg and alkali solutions on the formation and crystal structure of 1.4nm tobermorite and 1.1nm tobermorite at 80℃ curing in the CaO-SiO2-H2O systems. As a result, 1.4nm tobermorite was formed at 80℃ curing in the dry condition of 11％RH, whereas 1.1nm tobermorite was generated in the dry condition of 110℃. Also, Mg could make an effect of the formation of tobermorite, especially the significant development of 1.4nm tobermorite in the laminating direction, in the dry condition of 11％RH. In addition, NaCl in the solution could have the effect for the change of the lattice spacing in the c-axis direction of tobermorite, while Na2SO4 could show the effect of promotion of the generation and growth of 1.4nm tobermorite in the dry condition of 11％RH.
