A Study on Early Strength Estimation of Precast Concrete joint Mortar with Microwave

마이크로파에 의한 PC접합모르타르의 조기강도추정에 관한 연구

  • 원준연 (정회원, 단국대학교 건축공학과) ;
  • 박일용 (정회원, 단국대학교 건축공학과) ;
  • 백민수 (정회원, 단국대학교 건축공학과) ;
  • 이종균 (정회원, 단국대학교 건축공학과) ;
  • 안형준 (정회원, 강남대학교 건축공학과) ;
  • 정상진 (정회원, 단국대학교 건축공학과)
  • Published : 2000.04.01

Abstract

A large Pc structure building is system that consisted of bearing wall and slab joint. It has general structure stability from unity thar each members tied at joint. The strength of mortar that packing in joint among panels is important to internal force in entire building system. Do, if we could get early strength estimation with microwave. It would bring good construction planning, reduce construction time, and judge building stability and so on. The purpose of this study is to develop early estimation method for making better quality control and constructing good PC panel structure. The results of this study were as follows :1) With sealed molds, reduced moisture volatilization to more than 60% and enlarged 30% accelerated compressive strength than before one. 2) To get more accelerated strength, we should control maximum temperature difference to $30^{\circ}C$ downward 3)Interrelation with 7-day and 28-day strength were 0.831,0.902, and it is above than before one

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