한국건설순환자원학회논문집 (Journal of the Korean Recycled Construction Resources Institute)

한국건설순환자원학회 (Korean Recycled Construction Resources Institute)
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서냉 고로슬래그 굵은골재를 활용한 PHC 파일의 최적배합 및 물리적 특성

The Optimal Mixing Design of the PHC Piles Utilizing the Air Cooled Blast Furnace Slag as Coarse Aggregate

  • 투고 : 2014.06.17
  • 심사 : 2014.06.27
  • 발행 : 2014.06.30
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초록

본 연구에서는 서냉 고로슬래그 굵은골재를 PHC 파일 콘크리트용 굵은골재로의 활용성을 검토하기 위해 실내 배합 평가부터 실공정 제품 생산까지를 진행하였다. PHC 파일의 기본 물성 및 압축강도는 적절한 배합 조정을 통해 충분히 확보 가능 할 것으로 판단된다. 다만 SG 내에 CaO와 MgO를 다량 포함한 골재의 선별을 반드시 진행되어야 AC(Auto-clave)방식의 PHC 파일 제조 공정에서의 사용이 가능할 것으로 판단되며, 파일의 표면 불량을 제외하고는 KS에서 규정하고 있는 휨모멘트, 전단강도, 압축강도를 모두 만족하는 것으로 나타났다.

The PHC pile utilizing the air-cooled blast-furnace slag as coarse aggregate was studied. This research was progressed with the range from the indoor mixing design evaluation into the actual goods production. The physical properties of the PHC pile are determined to satisfy through the appropriate mixing design adjustments. However, it should eliminate the aggregates including CaO and MgO in SG when it utilize in an AC (autoclave) type manufacturing process. It satisfied the bending moment, shear strength, and compressive strength of KS F 4306 except the surface states of the pile.

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참고문헌

  1. Choi, D.K. (2010). An Experimental Study on the Concrete using the Blast-Furnace Slag Coarse Aggregate, Proceeding of Korean Institute of Construction Engineering and Management, 221-224.
  2. Choi, M.S. (2002). Supply and Demand Stability Countermeasures of Aggregate Resources, Technology Information of Korea ready-mixed concrete industry association, 73, 55-58 [in Korean].
  3. Kim, H.D. (2013). Generation and Recycling of Blast Furnace Slag. Proceeding of Korean Recycled Construction Resources Institute 13(2), 219-221.
  4. Korea Iron & Steel Association. http://www.kisa.or.kr.
  5. Korean Standards Association (2002). KS F 2544 Blast furnace slag aggregate for concrete.
  6. Ministry of Land, Transport and Maritime Affairs (2014), 5th (2014-2018) Aggregate Supply Basics Plan.
  7. Park, H.I. (2013). Engineering Characteristics of the Electric Arc Furnace Oxidizing Slag as Concrete Aggregate, Master's thesis, Kongju National University [in Korean].
  8. Park, J.H. (2007). Study on the Practical Recycling Strategy of Construction Wastes, Master's thesis, Chungang University [in Korean].