DOI QR코드

DOI QR Code

Study of Non Sintered Cement Mortar Using Nanoslag and Alkali Activator

나노슬래그와 알칼리 자극제를 활용한 비소성 시멘트 모르타르에 관한 연구

  • Jeong, Sung-Wook (Department of Architectural Engineering, Tongmyong University) ;
  • Lim, Nam-Gi (Department of Architectural Engineering, Tongmyong University)
  • Received : 2010.10.19
  • Accepted : 2010.10.27
  • Published : 2010.12.20

Abstract

As global warming has had harmful effects on the environment, the construction industry has made efforts to reduce the amount of $CO_2$ generated in the process of cement production. There is an urgent need for an alternative material that can replace cement. To improve the initial strength and economical efficiency pointed out as problems, this research was conducted for Blast Furnace Slag (BFS), an industrial byproduct. Non-sintering cement (NSC) was used by minimizing the amount of high-priced alkali activators. By using Nano-technology, fineness has been maximized, to enhance the initial strength of BFS. This research is based on non-sintered cement replaced by nano-slag using alkali activators, and the fundamental properties and quality of the non-sintered cement were investigated. A variety of activators were used, up to 10 percent of the slag weight. This research aims to present fundamental data through a comparative analysis of flexural strength, compressive strength, time of setting, diabetic temperature, and rising heat.

현재 지구촌 온난화에 의하여 환경이 열악해지고 있으며 그에 따라 건설분야에도 시멘트 제조에 따른 $CO_2$ 발생 저감하기 위한 노력을 하고 있다. 이에 시멘트 대체할 재료가 필요하다. 본 연구에서는 기존 비소성 시멘트의 문제점으로 지적 되는 경제성 및 초기강도 확보를 위해 산업부산물인 고로슬래그를 대상으로 연구를 진행하였으며 고가의 알칼리 자극제량을 최소화함으로서 실용화 가능한 비소성 시멘트 기술을 진행하고자 한다. 그리고 NT를 사용하여 분말도를 최대화 하여 고로슬래그의 초기강도를 개선시켰다. 본 연구는 알칼리 자극제를 사용한 나로슬래그를 치환한 비소성시멘트를 기초로 하고 있으며, 현장에서 사용가능한 비소성시멘트의 기초적 물성 및 품질을 조사하였다. 여러 자극제가 슬래그 중량의 10%로 사용되었으며 휨강도, 압축강도, 응결시간, 단열온도, 상승열등을 비교 분석하였으며 그 기초적 자료를 제시하는데 목적이 있다.

Keywords

References

  1. Lim NG. The study on properties of concrete using High-Blaine Blast-furnace Slag Powder, Architectural Institute of Korea, 2005;49(10):119-129.
  2. Byun KJ. SILICA FUME CONCRETE, Kimoondang; 2007. p.31.
  3. Jin IJ. NANOMATERIALS, Daeyoungsa; 2006. p.13.
  4. Korea Institute Concrete, Concrete Admixture, Kimoondang; 1997. p.217.
  5. Park JB. An Experimental study on the Development of Advanced Nano-Cement and the Characteristics of Nano-Cement Concrete [MA dissertation]. Seoul: HanYang University; 2007.
  6. Kim EY, Sonh HY, Lee SS, Kim JS, Kim HT. Experimental Study on the Strength Properties and Flowability of High Performance Concrete Using Blast Furnace Slag, Proceeding of Annual Conference of the Architectural Institute of Korea 2006;10:425-428
  7. Han CG, Baek JH, Han MC, Kim SH, Noh SK, Son HJ. Properties of Shrinkage and Strength of Concrete Incorporating Blast-furnace Slag, Journal of the Korea Institute of Building Construction 2008;8(1):99-102
  8. Kim HS. A Study on Application of High Strength Concrete using non-sintering cement [MA dissertation], Seoul: Dankook University; 2006.
  9. Park JB. An Experimental study on the Development of Advanced Nano-Cement and the Characteristics of Nano-Cement Concrete[PhD dissertation]. Seoul: HanYang University;2007.
  10. Lee HY. Effect of blast furnace slag matrix by alkali activator and sulfate activator[MA dissertation]. Jeonju: ChonBuk University;2007.

Cited by

  1. An Experimental Study on the Mechanical Behavior of Concrete Using Non-Sintered Cement vol.12, pp.1, 2012, https://doi.org/10.5345/JKIBC.2012.12.1.115
  2. Improvement of the Early Age Strength of Low Cement Concrete Using High Volume Mineral Admixture vol.12, pp.6, 2012, https://doi.org/10.5345/JKIBC.2012.12.6.566