CO2 양생에 의한 MgO 혼입 모르타르의 압축강도 발현에 관한 연구

Abstract

Currently, cement and concrete industries have been contributing to the CO2 emission worldwide. Because of that, the efforts to minimize CO2 have been the subject of many researches. This study focus on the use of GGBFS and fly ash in mortar specimens as a patial replacement of cement. Because of the limitation of the initial compressive strength, the newly efforts to enhance the strength through CO2 Curing was adapted. To accelerate the reaction with CO2, MgO was replaced by percentage from 0 to 100%. Results showed that compressive strength values at 7 days with CO2 curing done on specimens was higher than that with no CO2 curing. Similar trend was observed at 14 days too. It is therefore appeared that CO2 curing has an obvious effect on compressive strength development of mortar specimens.