Making the Insulation Mortar Mixed with Waste Paper and Sawdust

종이와 톱밥을 혼입한 단열 모르타르 재료 개발에 관한 연구

  • Lee, Seung-Young (Department of Safety Engineering, Seoul National University of Technology) ;
  • Son, Ki-Sang (Department of Safety Engineering, Seoul National University of Technology)
  • 이승영 (서울산업대학교 안전공학과) ;
  • 손기상 (서울산업대학교 안전공학과)
  • Received : 2009.09.02
  • Accepted : 2010.04.20
  • Published : 2010.06.30


This study is to test insulation mortar mixed with wastepaper and sawdust to find out its insulation performance. Therefore, wastepaper and sawdust have been added to normal mortar. They are analyzed for the above purpose using compressive strength and insulation performance. It is found that the more wastepaper and sawdust will be mixed, the lower heat conductivity will be taken. Wastepaper and sawdust mixture will be more 2.0% then the insulation mortar quality can be compatible with the 3rd kind of the standard. Optimal mixture for insulation will be wast paper:sawdust=4:6. Cohesive test of materials showed that test material has stronger than stand are $0.10N/mm^2$. It is satisfactory the test result showed a range of $0.12{\sim}0.15N/mm^2$ from the test result. Optimal mixture of wastepaper and sawdust have been found out from the study comprehensively, exclusive of the proportion of wastepaper:sawdust = 8:2. It is thought that standard of length deformation; 0.5% is reasonable. This means that deformation of mortar itself can be considered. But it is also Shown that water mixture has also been sharply changed at first flow test. Therefore, it is thought that absorbed water content in the material gave considerable effect to variation rate.


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