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A study on the fire resistance characteristics of mud flat mortar

갯벌모르타르의 내화성능에 관한 실험적 연구

  • Yang, Seonghwan (Division of Architecture and Urban Design, Incheon National University) ;
  • Kim, Huidoo (Division of Architecture and Urban Design, Incheon National University)
  • Received : 2015.11.17
  • Accepted : 2015.12.04
  • Published : 2015.12.31

Abstract

As urbanization progressed along with quantitative expansion of the construction industry, concrete has developed diversely as a material that is the most extensively used in the construction industry. However, aggregate resources that are an essential element of concrete production are gradually being depleted and the phenomenon of aggregate shortage has been intensifying due to the reinforcement of regulations on environmental issues. Therefore, in the present study, environment friendly mortar was made by replacing aggregate with mud that is dumped when dredging sand is dumped. To identify the dynamic characteristics of the mortar and to identify its fire resistance efficiency, the mortar was heated and its residual compressive strength was measured. In the results, the residual compressive strength values of MM1, MM2, and MM3 were 45%, 95%, and 57.7% respectively and the mix MM2 showed the highest fire resistance efficiency.

건설산업의 양적팽창과 함께 도시화가 진행되면서 콘크리트는 건설재료로서 가장 많이 사용되는 재료로서 다양한 발전을 해왔다. 하지만 콘크리트를 제작하는데 필수 요소는 골재자원이 점진적으로 고갈되고 있으며 환경문제에 대한 규제의 강화로 인해 골재부족현상은 갈수록 커지고 있는 실정이다. 이에 따라 본 연구에서는 준설토 투기로 인해 버려지는 갯벌을 골재로 치환하여 사용한 친환경 모르타르를 제작하여 그 역학적 특성을 규명하고 또한 내화성능을 확인하기 위해 가열을 한 뒤 잔존압축강도를 측정하였다. 그 결과 MM1, MM2, MM3의 잔존압축강도는 각각 45%, 95%, 57.7%의 강도를 발현하였으며 MM2의 배합에서 내화성능이 가장 우수한 것으로 나타났다.

Keywords

References

  1. Chmura, G.L., The global carbon sink in tidal salt marshes. Am Geophys. Union, Spring Meeting, abstract #B53A-01. (2004).
  2. J.G Kim,S.J You ,(2000). "Evaluation to Purification Capacity of Pollutants by Column Test wit the tidal flat sediment.", Jounal of the Koreal Environmental Sciences Society, Vol.3, pp223-228.
  3. J.S Hong, (2000). "Biodiversity of Macrofauna on Macrotidal flats, Incheon, Korea", The korea Society of Phycology, Vol-, pp45-59.
  4. J.S Hong, "Mud flats in Korea", Daewonsa, (1998).
  5. S.J You,J.G Kim, (1999). "Evaluation on the Purification Capacity of Pollutants in the Tidal Flat.", J. Korean Fish. Soc, Vol.32(4), pp409-415.
  6. Y.H Back, "Living Mud flats story", Chang jo munhwa, (1999).
  7. Incheon city planning released (2014).

Cited by

  1. 물-시멘트비 및 갯벌 치환율에 따른 모르타르의 특성 vol.17, pp.3, 2015, https://doi.org/10.5345/jkibc.2017.17.3.227
  2. 습윤갯벌 치환율 변화에 따른 시멘트 모르타르의 물리적 특성에 관한 연구 vol.13, pp.3, 2015, https://doi.org/10.15683/kosdi.2017.09.30.348