초록
In this paper, tests were carried out to investigate experimentally the effect of emulsifying agent type on reduction of autogenous shrinkage and engineering properties of the waste cooking oil added high strength mortar with 20% of W/B. Eucarol (EWCO-1) and Emulsion (EWCO-2) were applied for emulsifying agent. Existing waste cooking oil(WCO) and shrinkage reducing agent(SR) were also used and compared. Test results indicated that the increase of shrinkage reducing agents used in this study resulted in a decrease of flow and, contents and compressive strength. However, the use of EWCO-2 made the mortar reduce the decrease of their physical properties. For autogenous shrinkage, it was found that the use of shrinkage reducing agent also led to reduce the autogenous shrinkage. Moreover, the use of EWCO-2 had comparably larger reducing effect on autogenous shrinkage than other agent.