Recently, high-performance and high-fluidity concrete have been studied and developed because high-rised build is constructed. An early-age properties of these concretes have been studied and developed bacause of comparing existed concrete. This study proposed non-destructive method as electrical resistivity measurement, which evaluates setting time of cement-based materials. An assessment of the effect on the setting time was studied on the addition of a superplasticizer to delay the setting time and the curing temperature to promote the setting time. 6th of samples prepared mortar according to adding superplasticizer(PNS) or curing temperature and measured the electrical resistivity during 24 h. As the results, mortars which curing higher temperature were promoted rising time which is setting time in the electrical resistivity, also mortars which adding superplasticizer were retard rising time.

Abstract
 1. 서 론
 2. 샘플 제작 및 시험 방법
 3. 해석결과 및 고찰
 4. 결 론
 참고문헌

• 이한주(경북대학교 건설방재공학과) | Hanju Lee
• 임홍재(경북대학교 건설방재공학과) | Hong Jae Yim 교신저자