?좎?怨?PC媛먯닔?쒖쓽 怨좏삎遺꾩쑉 蹂?붿뿉 ?곕IX ?쒕찘??紐⑤V?瑜댁쓽 湲곗큹???뱀꽦 遺꾩꽍

This research aimed to analyze the fundamental properties of cement mortar accompanying the change of the solid contents of the maintenance type PC water reducing agent. As a result of the experiment, it was found that the properties of fresh mortar show a tendency to decrease as the solid contents decreases in the case of flow and air contents, and the decrease width with time is small. It was found that the compressive strength of the hardened mortar has almost no difference due to the change of the solid fraction.