| Title |
Setting Shrinkage Behavior of Polyester Mortars with Two-Phase Shrinkage Reducing Agent |
| Authors |
Choi Nak-Woon ; Song Hun ; Jo Young-Kug ; Soh Yang-Seob |
| Keywords |
폴리머 모르타르 ; 폴리에스테르 모르타르 ; 경화수축 ; 수축저감제폴리머 모르타르 ; 폴리에스테르 모르타르 ; 경화수축 ; 수축저감제 |
| Abstract |
The setting shrinkage behavior in polyester mortars with two-phase shrinkage reducing agent(SRA) was observed at the ambient temperature. Polyester mortars were prepared with various styrene contents and SRA contents. The length change and exotherm temperature of polyester mortars were continuously monitored by a noncontact-type automatic length change measuring apparatus and a thermocouple embedded respectively. Low-shrinkage or non-shrinkage of polyester mortars should be accomplished by adjusting styrene content and SRA content, and the mechanism of low setting shrinkage behavior in polyester mortars with two-phase SRA could be explained by using a gradual model. |