마이크로웨이브를 이용한 콘크리트 잔골재 표면수율 측정 자동화Microwave Moisture Measurement of Fine Aggregate in RMC Industry
- Other Titles
- Microwave Moisture Measurement of Fine Aggregate in RMC Industry
- Authors
- 최영철; 이봉춘; 문규돈; 손영정
- Issue Date
- 2012
- Publisher
- 한국안전학회
- Keywords
- microwave; moisture measurement; ready mixed concrete; quality control
- Citation
- 한국안전학회지, v.27, no.1, pp.63 - 69
- Journal Title
- 한국안전학회지
- Volume
- 27
- Number
- 1
- Start Page
- 63
- End Page
- 69
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/17322
- ISSN
- 1738-3803
- 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
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