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Gradation Curve of Aggregate using Digital Image Process  

Hwang, Tak-Jin (부산광역시 도시개발실)
Cho, Jae-Yoon (동의과학대 건설정보과)
Lee, Kwan-Ho (공주대학교 건설환경공학부)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.10, no.2, 2010 , pp. 31-37 More about this Journal
Abstract
Shape conversion coefficient and equivalent diameter for changing 2D image to 3D image by the Digital Image Process(DIP) have been suggested and modified particle size distribution curve has been showed. Couple of aggregates, like two different marine aggregates and two different crushed stones, have been employed. The measured flatness ratios of each aggregate were 0.30, 0.36, 0.47 and 0.83, respectively. Also, the conversion shape coefficients of each aggregate were determinded as 0.77, 0.78, 0.84 and 0.92. The size of aggregate has been modified by multiplying the shape conversion coefficient and the aggregate size from DIP. The modified gradation curve with modified volume and weight of aggregate has been suggested. Within the limited test results, DIP is one of useful to get the particle shape of aggregate with limitation of measuring errors and to apply the particle distribution curve.
Keywords
Digital Image Process; Aggregate; Gradation Curve; Shape Conversion Coefficient; Equivalent Diameter;
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