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Microwave Moisture Measurement of Fine Aggregate in RMC Industry

마이크로웨이브를 이용한 콘크리트 잔골재 표면수율 측정 자동화

  • Choi, Young-Choel (Advanced Technology Team, Korea Conformity Laboratories) ;
  • Lee, Bong-Chun (Advanced Technology Team, Korea Conformity Laboratories) ;
  • Moon, Gyu-Don (Advanced Technology Team, Korea Conformity Laboratories) ;
  • Son, Young-Jung (Advanced Technology Team, Korea Conformity Laboratories)
  • 최영철 (한국건설생활환경시험연구원 선행기술팀) ;
  • 이봉춘 (한국건설생활환경시험연구원 선행기술팀) ;
  • 문규돈 (한국건설생활환경시험연구원 선행기술팀) ;
  • 손영정 (한국건설생활환경시험연구원 선행기술팀)
  • Received : 2011.09.06
  • Accepted : 2012.01.12
  • Published : 2012.02.29

Abstract

Ready-mixed concrete(RMC) has been a major construction materials for infrastructures. However, RMC with poor quality is reported to be social issue since it directly user's safety and convenience. Because the properties of concrete as a construction material are greatly influenced by the variation of water content, to control water accurately is the most efficient method for the quality control in RMC industry. In this study, the automatic measurement technology of fine aggregate was developed by using the microwave moisture measurement. For the various conditions of fine aggregate such as moisture, temperature and pressure, the calibration curve of moisture measurement was obtained by using oven-dry method. From the infield and outfield test, it can be obtained that the accuracy of microwave moisture measurement is very high and the automatic system of microwave moisture measurement is very convenient and useful for quality control in RMC Industry.

Keywords

microwave;moisture measurement;ready mixed concrete;quality control

Acknowledgement

Grant : 레미콘 생산품질관리 자동화시스템 개발

Supported by : 한국건설교통기술평가원

References

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