The study examined the difference in activation by using a container (1cm, 3cm) that was different in height from the other time (3 minutes, 6 minutes, 9 minutes) at the same temperature. The activation time and height of the container do not affect the strength.

The purpose of this study is to compare the strength according as variables of Hwang-Toe activation temperature based on existing references. Compressive strength tests were carried out when the activation temperature was set to 450℃, 600℃, 850℃ and the replacement ration was set to 30%, 50%. As a result, it showed that strengths of specimens overall increased to 850℃. However, strengths of specimens with 50% replacement of Hwang-Toe were significantly reduced at 450℃ and 600℃. In this regard, it is necessary to study the proper quality of activated Hwang-Toe for mortar application in the future.