Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Optimum Mix Proportion for Recycling Waste Foundry Sand as Fine Aggregate in Concrete

  • Moon, Han-Young (Dept. of Civil Engineering, Hanyang University) ;
  • Song, Yong-Kyu (Dept. of Civil Engineering, Hanyang University) ;
  • Park, Jae-Jin (Dept. of Civil Engineering, Cheonan National Technical College) ;
  • Park, Yun-Wang (Dept. of Civil Engineering, Semyung University) ;
  • Kim, Ki-Hyung (Dept. of Civil Engineering, Yeojoo Institute of Technology)
  • Published : 2001.10.01
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Abstract

The amount of the waste foundry sand(WFS) produced in Korea is over 700,000 ton per year, but most WFS buries itself and only 5~6% or total WFS is recycled in the way or mixing as fine aggregate for construction materials. A bY-product, WFS produced from a foundry may affect our environmental contamination if it is discharged without proper waste disposal in Korea. Therefore in this study, we performed the fundamental research about specific gravity, absorption, grading curve, finesse modulus of WFS, different aggregates and the flow and the compressive strength of mortar with WFS replaced as fine aggregate, the workability and compressive strength of concrete with WFS as fine aggregate aimed at the specified strength of 270 kgf/$\textrm{cm}^2$, and then optimum mix proportion of concrete was determined

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