한국도로학회논문집 (International Journal of Highway Engineering)

  • 제14권4호
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  • Pages.51-61
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  • 2012
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  • 1738-7159(pISSN)
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  • 2287-3678(eISSN)
한국도로학회 (Korean Society of Road Engineers)
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굳지 않은 MMA개질 UP 폴리머 콘크리트의 사용가능시간에 미치는 온도와 결합재의 영향

Effects of Temperature and Binder Components on Working Life of Fresh MMA Modified UP Polymer Concrete

  • 연정흠 (미국 텍사스대 교통연구센터) ;
  • 현상훈 ((주) 아이콘텍 이앤씨)
  • 투고 : 2012.04.18
  • 심사 : 2012.06.20
  • 발행 : 2012.08.15
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초록

PURPOSES : This study deals with the working life of polymer concrete, which is typically used as a repair or overlay material for portland cement concrete pavements. METHODS : In the scope of this study, laboratory testing was conducted on fresh MMA modified UP polymer concrete, which uses an MMA monomer for viscosity adjustment and strength improvement of UP resin. The experimental variables were temperature (-20 to $+20^{\circ}C$) and binder components (MMA, MEKPO, and DMA). RESULTS : The result showed that the optimum binder ratios for polymer concrete production were 12, 11, and 10 wt.% when the MMA contents were 20, 30, and 40 wt.%, respectively. The working life of polymer concrete depending on temperature and binder components could be expressed by a logarithmic functional formula. The coefficient of variation for each binder component was the highest for DMA content while the lowest for MEKPO content. Also, the contents of each binder component for ensuring the working life of 60 minutes were proposed. CONCLUSIONS : Ultimately, the present study derived a linear regression equation estimating 60 minutes working life based on the setting times of each binder component.

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참고문헌

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