Abstract
The effect of pore water on solidification of granulated blast furnace slag, called slag for short hereafter, is discussed in this paper. The effects of pH and the concentration of Ca2+ are mainly discussed. When the pore water was sea water, pH of the pore water was not enough high and slag solidified. When the pore water was with NAOH solution, the slag did not solidified over than 90 days of curing in spite of its high pH. Duration needed to slag solidification was longer than the case the pore water was sea water. These results mean not only high pH but Ca2+ concentration affects the solidification of slag.
