논문 상세보기
pp.429-430
The purpose of this experimental research is to evaluate the long-term resistance against sulfate attack of the alkali activated cementless concrete replacing the cement with ground granulated blast furnace slag. For this purpose, the cementless concrete specimens were made for water-binder ratios of 40%, 45%, and 50%, respectively and then this specimens were immersed in fresh water and 10% sodium sulfate solution for 28, 91, 182, and 365 days, respectively. To evaluate the long-term resistance to sulfate attack for the cementless concrete specimens, compressive strength ratio, mass change ratio, and length change ratio were measured according to the JSTM C 7401. It was observed from the test results that the resistance against sulfate attack of the cemetntless concrete was comparatively largely increased than that of OPC concrete irrespective of water-binder ratio.
