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High Temperature Properties in Finishing Mortars of Exterior Insulation Finishing System Using Fly Ash and Waste Glass Powder

플라이애시와 폐유리분말을 사용한 외단열용 마감모르타르의 고온 특성

  • Song, Hun (Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Shin, Hyeon Uk (Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology)
  • 송훈 (한국세라믹기술원 에너지환경본부) ;
  • 신현욱 (한국세라믹기술원 에너지환경본부)
  • Received : 2019.10.29
  • Accepted : 2019.11.21
  • Published : 2019.12.31

Abstract

Fly ash has different chemical composition depending on the type and quality of flaming coal. Fly ash is classified according to carbon content and particle size. Waste glass powder is manufactured by crushing glass. Exterior Insulation Finish System (EIFS) is generally applied by using poly-styrene foam which is economical and has excellent thermal insulation performance. However, poly-styrene foam has excellent insulation performance, but it is vulnerable to fire, which is becoming a serious problem. In this study, using a fly ash and waste glass powder to produce a finishing mortar at high temperatures. Also, High temperature strength and flame retardant properties were tested according to the cover thickness. From the test result, finishing mortar prepared using fly ash and waste glass powder is due to the improved heat resistance by alkali-activated bonding. However, since the strength decreases at high temperatures, it is necessary to select an appropriate mixing proportion.

플라이애시는 발전소의 탄종 및 품질에 따라 화학조성이 다르고 품질 변화가 크며 탄소함량과 입경에 따라 분류하며, 폐유리분말은 파유리를 분쇄하여 제조하고 분쇄정도에 따라 분류한다. 건축물의 외단열 공법은 경제적이면서 단열성능이 우수한 폴리스티렌 폼 단열재를 활용한 공법이 일반적이다. 하지만 유기계 단열재는 단열성능이 우수하나 화재에 취약하고 다수의 문제점이 지적되었다. 본 연구에서는 플라이애시와 폐유리분말을 사용하여 고온에서 안정한 외단열용 마감모르타르를 제작하고 고온 강도 및 난연 특성을 검토하였다. 실험 결과, 플라이애시와 폐유리분말을 이용한 마감모르타르는 고온에서의 안전성이 높았다. 하지만 강도감소의 폭이 크므로 적절한 배합조건의 선정이 필요하다.

Keywords

References

  1. Hun Song and Hyeon-Uk Shin, 2015 : Physical properties of light weight foamed glass using waste glass Powder and fly ash, Journal of Recycled Construction Resources Institute, 3(4), pp.328-334. https://doi.org/10.14190/JRCR.2015.3.4.328
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