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Evaluation of Aggregates Properties Depending on Producing Sectors and Regions in Korea

전국 골재산지 권역별 콘크리트용 골재의 물성 평가

  • Han, Min-Cheol (Department of Architectural Engineering, Cheongju University) ;
  • Lee, Jun-Seok (Department of Architectural Engineering, Cheongju University)
  • Received : 2017.09.15
  • Accepted : 2017.10.31
  • Published : 2017.12.20

Abstract

This study is to present empirical data about the needs for quality security of aggregate by randomly selecting aggregate from 4 major locations including A, B, C, D province in Korea, by investigating its quality status in terms of physical properties and particle distribution based on Korean industrial standards(KS). The test results indicated that wide variance in quality, and some of aggregate samples were far below the standard, still many of them are not satisfying KS standards. In addition, the current aggregate manufacturing process that does not include inspection of particle size distribution by sieving and fineness modulus, can induce a possibility of non-KS aggregate's distribution; this provide that the current status of aggregate quality security of Korea is seriously threatened. Thus, it is important to secure each aggregate's quality level under KS standards.

본 연구에서는 우리나라 지역별 4개 권역에서 유통되고 있는 골재를 임의로 선정하여 관련 골재 KS의 품질 항목을 기준으로 적합 부적합 여부 및 품질 실태를 확인하고 골재 품질 확보의 필요성에 대한 실증적인 자료로 제시하고자 하였다. 각 권역의 골재원에 따른 골재의 물성을 평가한 결과 골재가 유통되는 지역 및 골재원의 특성에 따라 골재의 품질은 다소 상이하게 나타났는데, 일부 골재의 품질 수준은 열악하였고, 상당수의 골재가 관련 KS의 기준에 부적합한 비 KS 골재인 것으로 나타났다. 또한 골재의 유통과정 중 입도나 조립률을 검사하지 않는 골재채취법은 저품질의 불량 골재도 유통할 수 있는 근거가 되기에 기준에 부적합한 골재도 유통이 가능하여, 국내 골재의 품질 실태가 매우 우려스러운 수준임을 확인할 수 있었다. 이에 따른 각 골재원에 따른 골재의 KS 품질 확보가 필요할 것으로 사료된다.

Keywords

References

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