Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Physical Properties of Pastes and Mortars Based on Mixing Ratios of Ternary System Inorganic Composites and Addition Percentage of Alkali Accelerator

3성분계 무기결합재의 혼합비율 및 알칼리자극제 첨가율에 따른 페이스트와 모르타르의 물리적 특성

  • 송하영 (한밭대학교 건설환경조형대학 건축공학과) ;
  • 배상우 (한밭대학교 건설환경조형대학 건축공학과) ;
  • 이상수 (한밭대학교 건설환경조형대학 건축공학과)
  • Received : 2012.10.29
  • Published : 2012.12.25
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Abstract

The purpose of the study is to develop substitutes for cement, and is to derive the most optimal mixing of inorganic composites as basic data by comparing physical properties of pastes and mortars based on mixing ratios of ternary system inorganic composites which accelerate industrial by-products such as ground granulated blast-furnace slag, fly ash and red mud. As the results of experiments, it was shown that the flowing was increased when mixing ratio of BFS and RM was increased. Setting time in inorganic composites was much faster than that of cement. Compressive strength was increased when mixing ratio of BFS and RM was increased. The length change was decreased when mixing ratio of FA and RM was increased. The flowing was greatly increased based on change in addition percentage of $Na_2SiO_3$ and quick setting phenomenon appeared in setting time as total amount alkali accelerator. In terms of compressive strength, strength expression is getting bigger when addition percentage of $Na_2SiO_3$ was increased. Result of experiments of inorganic composites, mortar showed the similar results of paste. The most optimal mixing ratio of inorganic composites in the range of this study was B6:F2:R2(BFS:FA:RM). In this case, addition percentage of alkali accelerator was NaOH : 5 % and $Na_2SiO_3$ : 6 %.

Keywords

Acknowledgement

Supported by : 한국과학재단

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