양생방법에 따른 초고강도 모르타르의 압축강도 평가에 관한 실험적 연구

Abstract

In this paper, the curing method to increase the strength of mortar was studied. For this purpose, mortar specimens were dealed with water-absorbing curing to evaluate compressive strength according to existing high temperature curing conditions. Experimental results showed that the compressive strength of mortar did not change immediately after water-absorbing curing. Plain of ST_W specimens subjected to high temperature curing was 9.8 ~ 10.5%, that of G25 was 18.7 ~ 24.3% and that of G50 was 20.0 ~ 32.3% higher than those of ST_N specimens. In the case of G25 or G50, the compressive strength increase rate of the ST_W specimens increased with increasing slag replacement ratio, and the compressive strength of G50 ST_W specimens was the highest at 130.8 MPa. It is considered that the strength was increased due to the water supplied from the outside through the water-absorbing curing.