Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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Properties of Non Sintered Cement Mortar using Ferro Nickel Slag

페로니켈 슬래그를 사용한 비소성 시멘트 모르타르의 특성

  • Received : 2022.09.27
  • Accepted : 2022.11.14
  • Published : 2022.12.20
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Abstract

This study aims to completely develop a non sintered cement mortar using industrial by-products. To replace Portland cement, blast furnace slag, circulating fluidized bed fly ash, and pulverized coal fly ash were used, and natural aggregates were substituted with ferronickel slag. To understand the characteristics of the non sintered cement mortar to which ferronickel slag is applied, an experiment was conducted by classifying the particle size. Fluidity and workability were confirmed through the flow test, and bending and compressive strength tests were conducted at 3, 7, and 28 days of age. In addition, durability was identified through a chloride ion penetration test. Through the study, it is judged that the binder, which completely replaced cement and aggregate, has high potential of being used as a construction material. Notably, it was confirmed to be advantageous for strength and durability.

본 연구는 우리가 사용하고 있는 포틀랜드 시멘트와 골재로 사용되는 천연모래를 산업부산물로 전량 대체하여 비소성 시멘트 모르타르를 개발하고자 하였다. 포틀랜드 시멘트를 대체하기 위해 고로슬래그, 순환유동층 플라이애시, 미분탄 플라이애시를 사용하였으며 천연골재를 페로니켈 슬래그로 대체하였다. 페로니켈슬래그를 적용한 비소성 시멘트 모르타르의 특성을 파악하기 위해 입도 크기를 분류하여 실험을 실시하였다. 플로우 테스트를 통해 유동성 및 작업성을 확인하였으며, 휨 및 압축강도 시험은 재령 3, 7, 28일 실시하였다. 또한 염소이온 침투 시험을 통해 내구성을 파악하였다. 연구 결과, 시멘트와 골재를 산업부산물로 전량 대체한 결합재는 건설재료로 활용 가능성이 높은 것으로 판단된다. 특히 장기강도발현과 내구성확보에 유리한 것으로 확인하였다.

Keywords

Acknowledgement

We would like to thank you for revealing that this paper was a study conducted with the support of ferronickel slag from SNNC.

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