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Lightweight Properties of Matrix using Paper Ash according to Replacement Ratios of Fly Ash and Polysilicon Sludge

플라이애시 및 폴리실리콘 슬러지 혼입율에 따른 제지애시 경화체의 경량 특성

  • Park, Sun-Gyu (Department of Architectural Engineering, Mokwon University) ;
  • Kim, Yun-Mi (Department of Architectural Engineering, Hanbat National University) ;
  • Lee, Sang-Soo (Department of Architectural Engineering, Hanbat National University)
  • 박선규 (목원대학교 공과대학 건축공학과) ;
  • 김윤미 (한밭대학교 건설환경조형대학 건축공학과) ;
  • 이상수 (한밭대학교 건설환경조형대학 건축공학과)
  • Received : 2014.06.19
  • Accepted : 2014.06.28
  • Published : 2014.06.30

Abstract

This experimental study considers manufacturing method of the non-portland cement matrix for the light-weight building materials using blast furnace slag, paper ash, fly ash and polysilicon sludge the industrial by-product. For the experiment, we used paper ash by means of the foaming agent and alkali activator to make non-portland cement light-weight matrix. Various specimens were prepared with different types and addition ratios of the alkali activator. Then, the properties of these specimens were investigated by compressive strength test, bulk specific gravity. As a results, it was judged that experiment results of non-portland cement matrix with specific waste resources and alkali activators were useful as basic data for mixtures design and evaluation properties of lightweight non-portland cement building material.

기포콘크리트의 재료 중 시멘트는 제조과정 중에 $CO_2$를 다량 발생시키기 때문에 지구 환경적인 측면에서 커다란 문제가 되고 있지만, 아직까지 시멘트를 대체할 수 있는 대체재에 대한 연구 개발이 미흡한 실정이다. 또한, 발포제는 압축강도가 낮고 고가인 단점이 있다. 이 때문에 강도와 경량 등의 성능 개선과 친환경적인 재료의 사용이 필요한 실정이다. 이에 본 연구에서는 시멘트와 발포제를 대체하기 위해 고로슬래그와 제지애시를 사용하여 경량 경화체를 제조하고자 하였으며, 강도 및 경량성을 보완하기 위해 플라이애시와 폴리실리콘 슬러지를 사용하여 실험을 실시하였다. 그 결과, 플라이애시를 사용한 경화체는 Plain 보다 낮은 밀도를 나타내었으나 강도보완에는 취약하였으며, 폴리실리콘 슬러지를 사용한 경우는 3%치환한 경화체가 압축강도는 Plain보다 다소 낮지만 겉보기 밀도의 감소가 큰 것으로 나타났다.

Keywords

References

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  2. Mechanical Properties of Non-cement Matrix Utilizing the Circulating Fluidized Bed Combustion Boiler Fly Ash and Dyeing Sludge Carbide vol.4, pp.4, 2016, https://doi.org/10.14190/JRCR.2016.4.4.425